iso_2553_1992.pdf
TRANSCRIPT
IS0 2553:1992(E)
Contents
1 scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..,.I......................-.. 1
2 Normative references ..,..............._............ . . . . . . . . . . . . . . . . . .._.................... 1
3 General . .._ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-....... . . . . . . . . . . . . . . . . . . . ..-....... 1
4 Symbols . . . . . . ..-................................... . . . . . . ..-.......s......................... 2
4.1 Elementary symbols .......................................... ....................... 2
4.2 Combinations of elementary symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._. 5
4.3 Supplementary symbols . . ,........... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Position of the symbols on drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1 General . . . . . . .._..................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..--.................. 8
5.2 Relationship between the arrow line and the joint . . . . . . . . . . . . . . . 8
5.3 Position of Ihe arrow line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-.. IO
5.4 Position of the reference line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-........... 10
5.5 Position of t.he symbol with regard to the reference line .,. 11
6 Dimensioniny of welds L . . . . . . . . . . . . ..-v................... . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1 General rules . . . . . . . . . . . . . . . . .._........_... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 Main dimensions to be shown . . . . .._....................................... ‘12
7 Complementary indications . . . . .._.............................................. 18
7.1 Peripheral welds . . . . . . . . . . . . . . . . . . . . ..-.............................................. 18
7.2 Field or site welds .,..................._......,...,................................. 18
7.3 Indication of the welding process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._.. 18
7.4 Sequence of information in the tail of the reference mark 18
8 Examples for applicalion of spot and seam joints . . . . . . . . . . . . . . . . . 19
0 is0 1992 All rights reserved. No part of this publication may be reproduced or utilized in my fat m or by any means, electronic or mechanical. including ptdcscr>pyirq and microfilm, withoul permission in w1 iti ng from the publisher.
International Organization for Stalldardization Case Postale 56 l CH-1211 Genkve 20 l Switzerland
Printed in Switzerland
ii
IS0 2553:1992(E)
Annexes
,A Examples of use of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
B Guidance for converting drawings made in accordance with IS0 2553:1974 into the new system in accordance with IS0 2557-1991 L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
. . . III
IS0 25533 992(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, govern- mental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote.
International Standard IS0 2553 was prepared by Technical Committee ISO/TC 44, Weldir)g and alliecJ processes, Sub-Committee SC 7, Rep- resentatior-, and terms.
This third edition cancels and replaces the second edition (IS0 2553:1984), which has been technically revised to include IS0 2553/DAD t1987.
Annexes A and R of this International Standard are for information only.
INTERNATIONAL STANDARD IS0 2553:1992(E)
Welded, brazed and soldered joints - Symbolic representation on drawings
I Scope
This International Standard prescribes the rules to be applied for the symbolic representation of welded, brazed and soldered joints on drawings.
reference numbers for symbolic representation on &a wir7q.s. L
IS0 5817:1992, Arc-welded joints in sfeel - Guidance on qualify levels for imperfec tious.
IS0 6947: 1990, Welds .--- Working positions --- Deli- nitions of angles of slope and roiation.
2 Normative references IS0 8167:1989, Projections for resistance welding.
The followinq standards contain provisions which, through refekence in this text, constitute provisions of this International Standard. At the time of publi- cation, the edii.ions indicated were valid. All stan- dwds are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of ap- plying the most recent edit.ions of the standards in- dicated below. Members of IEC and IS0 maintain registers of currently valid International Standards.
IS0 128: 1982, Technical drawirlgs --- Genera/ prin- ciples of presentation.
IS0 544: 1989, Filler materials for manual weldinq - L Size requirements.
IS0 1302: 1978, 7‘ecl1nical drawings -- Meihod of in- dicatinq surface texture on draw&p. ._ . .
IS0 2560: 1973, Covered electrodes for manual arc welding of mild steel and low alloy steel -- Code of symbols for identification.
IS0 3098-1: 1974, Technical drawings -...- Lelfel-ing --- Part I: Currer? tly used characters.
IS0 3581: 1976, Covered electrodes for manual arc welding of stainless arld oiler similar high alloy SffXlS - Code of symhIs for ider,tification.
IS0 4063: 1990, Welding, brazing, solderiuq a& h-aze welding of melals ._- Nomer,claiur-c of pr&esses and -----.-.---I.-- 1) To k~e publisk.
IS0 10042: -----l? Arc-welded joints in alurninium and its weldable alldys --- Guidance on quality levels for imperfecfions.
3 General
3.1 Joints rnay be indicated with the general rec- ommendations for technical drawings. However, for the purpose of simplification, it is advisable to adopt, for usual joints, the symbolic representation de- scribed in this International Standard.
3.2 The symbolic representation shall give clearly all necess&y indications regarding the specific joint to be obtained without over-burdening the drawing with notes or showing an additional view.
3.3 This symbolic representation includes an el- ementary symbol which may be completed by
-- a sr.ippIementary symbol;
--- a means of showing dimetlsions:
- some c:omplernentary indications (particularly for worl<sliop drawings).
3.4 !n order to simplify the drawings as much as possible it is r-ecommended that references be rnade to specific instructions or particular specifications qivinq a11 details of the preparation of edges to be \ *..
IS0 2553:1992(E)
welded, brazed and soldered and/or welding, braz- ing and soldering procedures, rather than showing these indications on the drawings of the welded . . parts.
If there are no such instructions, ,the dimensions re- lating to the preparation of the edges to be welded, brazed and soldered and/or welding, brazing and soldering procedures can be close to the symbol.
4 Symbols
4.1 Elementary symbols
The various categories of joints are characlerized by a symbol which, in general, is similar to the shape of the weld to be made.
No. Designation
1
2
---
3
..--
4
--
5
6 Single-bevel butt weld with broad root face
7 Single-U butt weld (parallel or doping sides)
The symbol shall not be taken to prejudge the pro- cess to be employed.
The elementary symbols are shown in table 1.
If the joint should not be specified but only be rep- resented that the joint will be welded, brazed or soldered. the following symbol shall be used:
Table 1 - Elementary symbols
Butt weld between plates with raised edges’) ; edge flanged weld /USA/ (the raised edges being melted down completely)
Square butt weld
Single-V butt weld
Sinqle-bevel butt weld . .
Single-V butt weld with broad root face
Illustration .__-_---- * -_-.- -__-_- _.-.- -- -.-_- - -.._--._ - .-.--.---_- . , . . n :/
-- ‘-----T-- s 66 /
Symbol _.-._..---.- -_-_--_~--~---~_
# A
_ _ - . . . . . - - - - - - - . - - - - - . - - . . - a - - - - . -
I I
V
V
___________ - . - . - - _ - - . - - - - _ . . . . . - - - _ . .
Y
_- - - - . - - - _ - . - - - _ . . - - I - - - -
Y
. - - . - -_ -__ - - _ - - . -a - - - * - -
Y
- - -
2
IS0 2553:1992(E)
No. - **- ----
8
9
----
IO
-_-.-_C_.
11
-_-----
12
-. __-.---*-*
13
14
____*- --.
15
_I-
__I.-..-*-- _I_- .sv,p__I__CP.-.
Designation --* .-..__- _--_ - _____ - __-. - **.- -_--.- -._.*___ _ __..___L.* II________*____ - _-**_*- ---**.-.-
Single-J butt weld
______ ___ _I_I____. -_.*-*-- _--* ----_ _*. . - -_*.-- -.c- *.-___.__- - -..--.-
3x:king run; hack cnt- backing weld /USA/
__Iy*___-____* -**-.- *_*- - __-I__ -- __--*_- _*------*-- yc__-*
Fillet weld
-- __*__*.-_*_ --__*- _w__-_m_.__ -_v__- -_*__ - --e-m._ mm- -P.-w ---.-- -*
Plug weld; plug or slot weld /USA/
*_***_ **__I* ._ ___-_*- ---_--- ._._.-__* ----*_- __*- -*-.*- .--* ---w--I---
s pot weld
**___**___^*_.*~___ ,.-_ ____---_- _-_.__d* _* _..-_*- -*. C. .__________^__.____ -*..--.----*--..
Seat-n weld
_**- __.________* -_-**_ . . . - - -___-- - - . * -_ - - - - - . * * _ - - . - - - - -
___* ___.*_ -“-*- - - -
Steep-flanked sinqle-V butt weld ._
_**__ - . **_** - ___*__* --- e--e - __.____,_._ L_____I______ ___* __*- -__- - _*-- -.-------.-.---
Steep-flanked single-bevel but! weld . .
Illrrstration - .-.- ___-- .___- - _*.*. ____--__- *** . --.*_-- *--
-*-
e’
S
-
__*. _ __________c_ _____.____________. .______ -
--- ____. _--_-- **.-. - -_-*- --_.__-mm*_ _*w.-
___-_________ - . . . . - _ - * - - . - - - - - . * . - - - . * - - - - -
* ._* . * - *_-**_**. * * **___*- ._.___.” __**_*.. _-____^ . . . - - . . * . -
_- __________.__________*._____.*.*__*.._ - ..--.*.._*.---**--. *- ---\. -7 - ---- a /‘5) * _..__._ __* -**... . ._. *. _-..**. - _.__________*_ - *_-*. -- *.-*-.-*- _-__-* I-.. __ _ 7 ----+ - ,/- 9 &
4 7
Symbol
Y _----------
r-l *_-. -..----- ---*
0
#
_* __-.*------.----. - *._-.*-*- l-l
U
IS0 2553:1992(E)
Designation p--m------
Illustration ___~---. -...---.-.--.-----_----.--------- .--e.-.-.---
No. ---. . .
16 Edge weld 6 / , / . 17 Surfacing
--
.
-.-o.._ _
~
8
.
18 Surface joint
19 Inclined joint / / .--
20 Fold joint
Symbol ______l-.--------
Ill
--~-----.-I_---- .__---
1) Butt welds between plates with raised edges (symbol 1) not completely penetrated are symbolized as square butt welds (symbol 2) with the weld thickness s shbwn (see tahle5)
IS0 2553:1992(E)
4.2 Combinations of elementary symbols
When required, combinations of elementary symbols can be used.
The elementary symbols are to be cotnbined for welding from both sides in such a manner arranging the applicable elementary symbols symmetrical to I
table 2 and applications for symbolic representation in ,table A.2 .
NOTE 4 Table2 gives a collection of combinations of elementary symbols for symmetrical welds. For the sym-
the reference line. Typical examples are given in
bolic reprketkation the elkmentary symbals are arranged symmetrically at the reference line (see tableA.2). For the use of symbols out of symbolic representation the sym- bols mav be renresented without the reference line.
l I
Table 2 - Combined symbols for symmetrical welds (examples)
Double-V butt weld (X weld)
Double-bevel butt weld
Double-V butt weld with broad root face
Double-bevel butt weld with broad root face
Double-U butt weld
Illustration Symbol _---^_-.---------.--.-_-- e-.--e.-_-----
X K x
IS0 2553:1992(E)
4.3 Supplementary symbols
Elementary symbols may be completed by a symbol characterizing the shape of the external surface or the shape of the weld.
The recommended supplementary symbols are given in table 3.
The absence of a supplementary symbol means that the shape of the weld surface does not need to be indicated precisely.
Examples of combinations of elementary and sup- plementary symbols are given in tables 4 and A.3.
NOTE 2 Although it is not forbidden to associate sev- eral symbols, it is bett.er to represent the weld cm a sep- arate sketch when symbolization becomes too difficult.
Table 3 - Supplementary symbols
Shape of weld surface or weld -----es-- -_-.-- -m-v-
a) Flat (usually finished flush) -_-__- I - . - - -_- - - - - I__- - - - - - - m - s - -
b) Convex
----.--_----..---.--..------.--.----------.-_---.--_- c) Concave
d) Toes shall be blended smoothly
- - - . - - - w - - - . - P - - - - - - - - - - - - - - - - - - I _ - - - - - - I -
e) Permanent backing strip used
- - - - - - - - - e - - - m - - . . . . - . - - - - - - - - . - - - - . - . - - - . - -
f) Rernovable backing strip used
Symbol ---------e-e
IS0 2553:1992(E)
Table4 gives examples of application of the sup- plementary symbols.
Table 4 - Examples of application of supplementary symbols
Desig,,ation
Flat (flush) single-v butt weld
Convex double-V weld
Concave fillet weld
Flat (flush) sir&+-V butt weld with flat (flush) backing run .,
Single-V butt weld with broad root face and backing run
Flush finished single-V butt welcl .
Fillet weld with srnooth blended face
Illustration
----- I_---- ----- --_-____-----.- -----
-.-- ------.-------- ---.- ------ .---. -_--- @ggxy
- -.---- ------- .---- ---- -__- ----- -._- ----- ___._.^. ---
-~----I ------___-.--.-----.---- -.--- ----~---
I---
I) Symbol in accordance with IS0 1302; instead of this symbol the main symbol d can be used.
Symbol --- --
n L
d 11
V
K P m - - - - - - - w - w - - - - - - - - . - - - - -
7
IS0 2553:1992(E)
5 Position of the symbols on drawings
5.1 General
The symbols covered by these rules form only pat-t of the complete method of representation (figure I), which comprises in addition to the symbol (3) itself:
- an arrow tine (1) per joint (see figure 2 and figure 3);
-- a dual reference tine, tines, one continuous ception, see note 3);
- a certain number of tionat signs.
NOTES
consisting of two parallel and one dashed (2) (ex-
dimensions and conven-
3 The dashed line can be drawn either above or beneath the continuous line .-------w--- -v----ma---. (see also 5.5 and annex 6).
For symmetrical welds, the dashed line is unnecessary and should be omitted.
The thickness of lines for arrow line, reference line, symbol and lettering shall be in accordance with the thickness of line lot dimensioning IS0 128 and IS0 3098- 1, respectively.
in accordance with
The purpose of the fottowinq rules is to define the location of welds by specifying
-- the position of the arrow tine;
- the position of the reference tine;
- the position of the symbol.
The arrow tine and the reference tine form the com- plete reference mark. If details are given, e.g. fol processes? acceptance levels, position, fitter and auxiliary materials (see clause 7), a tail shalt be added at the end of the reference tine.
5.2 Relationship between the arrow line and the joint
The examples given in figure 2 and figure 3 explain the meaning of the terms \
- “Arrow side” of the joint;
- “Other side” of the joint.
NOTE 5 The position of the arrow in these figures is chosen for purposes of clarity. Normally, it would be placed immediately adjacent to the joint.
NOTE 6 See figure 2.
IS0 2553:1992(E)
2a
Figure 1 -
l ine
a) Weld on the arrow side
Figure 2 - T joint with one fillet weld
“0 ther side “Arrow side
“Arrow side “Other side of joint B” of joint B”
al
Figure 3 - Cru
7 = arrow line
2a = referenrx line (continuous line) 2b = idmMkation line (dashed line)
3 - welding symbol
Method of representation
b) Weld on the other side
joint with two fillet welds
“0 ther side “Arrow side
“A now side of joint A” )/,J
of joint B” b)
9
IS0 2553:1992(E)
5.3 Position of the arrow line
The position of the arrow line with respect to the weld is generally of no special significance [see figures 4 a) and 4 b)]. However, in the case of welds of types 4, 6 and 8 (see table I), the arrow line shall point towards the plate which is prepared [see fig- ures 4c) and 4d)].
__\__. - c . v - - - - - - - . - - -
/ - - - E l -
. - . - / - - - - - - - - -
- - d - - - - - . - -
--*--\ -_-C--,--“--r-.
al
-__---_,_-- -- .- - -- -c---c-
ry- ----m
The arrow line
- joins one end of the continuous reference line such that it forms an angle with it;
- shall be completed by an arrow head.
5.4 Position of the reference line
The reference line shall preferably be drawn parallel to the bottom edge of the drawing or if impossible . 7 perpendicular.
b)
-
-
--o-m--- ~ ev ., . -
d)
Figure 4 - Position of the arrow line
10
IS0 2553:1992(E)
5.5 Position of the symbol with regard to the reference line
-- The symbol is placed on the dashed line side if the weld (weid face) is on the other side of the joint [see figure 5 h)].
The symbol is to be placed either above or beneath the reference line, in accordance with the foIlowing regulation:
NOTE 7 In the case of spot welds made by projection welding, the projection surface is to be considered as the external surface of the weld.
--- The symbol is placed on the continuous line side of the reference line if the weld (weld face) is on the arrow side of the joint [see figure 5 a)].
For symmetrical welds only
a) To be welded on b) To bo welded the arrow side on the other side
Figure 5 - Position of the symbol according to the reference line
11
IS0 2553:1992(E)
6 Dimensioning of welds
6.1 General rules
Each weld symbol may be accompanied by a certain number of dimensions.
These dimensions are written as follows, in accord- ance with figure&
a) the main dimensions relative to the cross-section are written on the left-hand side of (i.e. before) the symbol;
b) longitudinal dimensions are written on the right- hand side of (i.e. after) the symbol.
The method of indicating the main dimensions is defined in table 5. The rules for setting down these dimensions are also given in this table.
S-J s_ 1 ---B--s ----I---
Figure 6 -- Examples of the principle
Other dimensions of less importance may be indi- cated if necessary.
6.2 Main dimensions to be shown
The dimension that locates the weld in relation to the edge of the sheet shall not appear in the symbolization but on the drawing.
6.2.1 The absence of any indication following the symbol signifies that the weld is to be continuous over the whole length of the workpiece.
6.2.2 In the absence of a,ny indication to the con- trary, butt welds are to have complete penetration.
6.2.3 For the fillet welds there are two methods to indicate dimensions (see figure 7). Therefore, the letters u or z shall always be placed in front of the value of the corresponding dimension as follows:
Leg length R Z
To indicate deep penetration of fillet welds the throat thickness is s, see figure 8.
6.2.4 In the case of plug or slot welds with bevelled edges, it is the dimension at the bottom of the hole which shall be taken into consideration.
z=a\lT
/
--me-----
/
P Z ---(m,
Figure 7 - Methods of indicating dimensions far fillet welds
12
IS0 2553:1992(E)
NOTE - For deep penetration of fillet welds, the dimensions are indicated as ~846 Pa, for example.
Figure 8 - Methods of indicating dimensions for deep penetration of fillet welds
13
IS0 2553:1992(E)
I~iiijDesignation of welds
Table 5 - Main dimensions
j------ P----m-
Illustration
1 But! \~/eld
I I 2 Butt weld between plates with . . I
- - - I - I - - - - - _ -
I 3 I Continuous fillet weld
I 4 I Intermittent fillet weld I I I I I I 1 I
14
IS0 2553:1992(E)
Definition Inscription
s : minimum distance from the surface of the part to the bottom of the penetration, which cannot be greater than the thickness of the thinner part.
s : minimum distance from the external surface of the weld to the bottom of the penetration.
l-l : height of the largest isosceles triangle that can be inscribed in the . section.
z : side of the largest isosce section.
les triangle that can be inscribed in the .
---- ------- --- --_--.-----_--_-- - _-___-______._ ---_-._.-__------.-.I.-.-__I-------I..-_--- -_-. -----
I : length of weld (without end craters). .
( ) c : distance between adjacent weld elements.
12 : number of weld elements.
n: : (see No. 3)
2 :
V (see 6.2.1 and 6.2.2)
s II (see 6.2.1)
s Y (see 6.2-l )
s II [see 6.2.1 and footnote 1) to table 11
a n
z l?!!L (see 6.2.1 and 6.2.3)
a n nxlte)
(see 6.2.3)
15
IS0 2553:1992(E)
Table 5 - Main dimensions (concludeu’)
No. -w
Designation of welds
5 Staqgered intermittent fillet . weld
6 Plug or slot weld
---
7 Seam weld
8 Plus weld ..I
Spot weld
-_I_-- - . w - - -
I ---I_
I-,- .*--- (e). 1 -II, ..-- (e) 1 .-- _
l -
.
pill
%% lllluuL--- 1uu lu.u.u
- --*
I le) 1 --_.-- -- _.
---.---_-___. ---------------- ---..--------_-..-.-- ..--- --.-----_ - ---.--- -~-
- --__- - - - - - - - I . . - I - _ - - - - _ _ - - - - - - - -_ I - - - _ - - - . - - - . - . . . - . . - - - - - -_ - - - - _.___ _ _ _________-.-.-._ -----_-__.-_-_ - - -
-‘Q - .-(lp3~ I-- (e) _ ---. ----.-_---__ _ _ - I
- - - - - - - - - - - - - . - - . - - - - - . . - . - - I - - _ - _ . - - - - - * - - - - . - - - - -
16
IS0 2553:1992(E)
Definition
(c) : (see No. 4)
z\ nxl 7M n: :
1
ZJ nxl (see No. 3)
z : (see 6.2.3)
\ --.--e---m- .----- -.---- ----------------------_-..---_----.----------------.-.---------.-------~ ----
c i-1 nxl (e) (see 6.2.4)
I c : width of slot
I
dl-1 n(e)
17
IS0 2553:1992(E)
7 Complementary indications fork, at the end of the reference line remote from the reference line,
Complementary indications may be necessary in order to specify some other characteristics of welds. For example:
Figure 11 gives an example of its use. L
The list giving the correspondance between the numbers and the process is given in ISO 4063.
7.1 Peripheral welds
When the weld is to be made all around a part, the symbol is a circle, as shown in figure 9. ---c 23
Figure 11 - Indication of welding process
7.4 Sequence of information in the tail of the reference rnark
Figure 9 - Indication of peripheral weld
The information for joints and the dimensions can be supplemented by further information in the tail, in the following order:
- process (e.g. in accordance with IS0 4063);
7.2 Field or site welds
A flag is to be used to indicate the field or site weld, as shown in figure KI.
- acceptance level (e.g. in accordance with IS0 5817 and IS0 10042):
---- working position (e-g. in accordance with IS0 6947);
- filler tnaterials (e.q. in accordance with IS0 544, IS0 2560, IS0 35Ri).
t
*
The individual items are to he separated by / (solidus). ----
r In addition, a closed tail is possible which indicates specific instruction (e.g. proceclure sheet) by a ref- erence sign, see figure 12.
/
----~~ Figure IO - Indication of field or sife weld
7.3 Indication of the welding process
If required, the welding process is to be symbolized by a number written between the two branches of a Figure 12 - Reference information
18
IS0 2553:1992(E)
EXAMPLE
Single-V butt weld with backing run (see figure 13) produced by manual metal-arc welding (reference number 11.1 in accordance with IS0 4063), required acceptance level in accordance with IS0 5817, flat position PA in accordance with IS0 6947, covered electrode IS0 2560-E 51 2 RR 22.
Illustration
8 Examples for application of spot and seam joints
In the case of seam and spot joints (welded, brazed or soldered), joints are made at the interface be- tween the two lapped parts or by melt-through of one of the two parts (see figures 14 and 15).
Symbolic: representation
Front view
111 /IS0 5817-D/ IS0 @347-PA/ IS0 2560-E 512 RR 22
Top view
Figure 13 - Single-V butt weld with backing run
1WISO 5817.D/ IS0 6847~PA/ IS0 2?560-E 51 2 RR 22
Symbolic mpresent~th
c nxl(e) f-e----
Front view
c
i
_. _ - - --- __ _ . . J
s~nx10 _ -.____ ..- _ ___-.
I - _ ._ . . _-- -I 3
-- - - i
.- ._ ___ -- --.- .- __ .- ---
Top view
I -
1 - - - s - - - - - m J&lJr ._-_ . - . . ! - - - - +j
c = width of seam weld I = length of seam weld 14) ~1 weld distance
Figure 14 - Intermittent resistance seam welds
19
IS0 2553:1992(E)
Illustrat9on Symbolic mprwntsdon
Iliustration
a)
Front view
Resistance spot welds
Symbolic representation
V PC-1 I d c) n(e)
Front view
__. . - - --
Top view
1 A V (e) r*c-- rlc-- --m-P___ m
Illustration
bl Fusion-welded swt welds
Symbolic representation
V PS n(e) ti
Front view
- ---.-- ---- --- ---- --.- 7 cr\ -g* 4 -. r r’j Q 4byyv--- ---y-f _- I_--_ .-. _ -__ -W-C- ---c--y -.-
,v &----I-d .-.__ __ -1
Arrow poir~ts to the sbet containing the projection
------ --..-
Top view d ‘= spot d&mater
V = end distance (e) z-=. pitch
NOTE - This is an example for the representation of a projection in accordance with IS0 8167 (P) with a projection diameter d - 5 mm, n weld elernenW with dktance (9) l3enmen them.
c) Projmion welds
Figure 15 - Spot welds
20
IS0 2553:1992(E)
21
IS0 2553:1992(E)
Annex A (informative)
Examples of use of symbols
Tables A.1 to A.4 give some examples of the use of symbok. The repr-esentatiorls shown are qiven simply for L explanation.
Table A.1 - Examples of the use of elementary symbols
No.
1
--
2
-.-----
3
----
4
Desigrlatian Symbol
(Numbers refer to table 1)
Butt weld be-~ twem plates with
raised edges
Square butt weld
II 2
Illustration
- - - - - - - - - - - . .
Representation
.p ~ J __________ --__-_-___-_-----..--..---_--_----.-__----_-___._ -- --- - .- .-.-.- -.----.-------..----.-----
J ~ k\j -___-_------__-.----_-------- --.-.--. -.-..-_-__- ____-_ _.._,_._-- - .-_- -- ..-_--. - -- .---.---.-.- --.-- a --- .__---_.--.------------ .--.I--- -.----_--...------- ----.-- ~--_----_ ---_- - .-.- - _--.- .-.- -_-._ -.-.--- _------~- ---
22
IS0 2553:1992(E)
Symbolization
either
m--- -m m--
--- -----.-- ----- ------.-------.----- .-_-_-.-- -------.---.------_____ _--_,
or
---- 4” e--e
4”
---- r ----
F
23
IS0 2553:1992(E)
Table A.1 - Examples of the use of elementary symbols (cor?tinued)
No.
5
---
6
7
8
Designation Symbol
(Numbers refer to table 1)
Single-V butt weld
V 3
Single-bevel butt weld
I/ 4 .
Illustration
----.-----___--__-_-
----.w- ----- Representation
-
I __I---
-- -_-_-._ -- ----- -__---.-._---------._-_____ ----------.-_- --..--.--.-
---_--_- ---___----- .-----. -- ---.- -~~~-_-.---.----.__-_-_.- ---- ---.----
---_-_.---.-_--..I-_ ----- - ---- - ------- -.----__--___ -.-_.- --- ._-. - ..-.. -_--- --.- -.-- ----
1 >))H)m>)) --mm
24
IS0 2553:1992(E)
Symbolization
-- ------ ----_-.--__-.---_----_____ -__---_--_--__.--_-~----__
either or
25
IS0 2553:1992(E)
Table A.1 - Examples of the use of elementary symbols (cordhued)
No.
10
II
12
--
13
----
14
Designation Symbol
(Numbers refer to table 1)
Single-bevel butt weld
Single-V butt weld with broad
root face
Y 5
Single-bevel butt weld with broad
root face
Y 6
Single-U butt weld
Y 7
Illustration
- -
- - - - - . - ------____
-------_______
- - P - P - I _ - -
Representation
- + a -.---. -... - E3& .-- - ---- _ .- I
q -e-
26
IS0 2553:1992(E)
Symbolization
either
H H _II~____--__--_---_~-~~------~~---.-- .----.-- --- H m -~ ---- - -----------_---___----^--__l__--l- H B _-.-- -_----__-_--.- ..------. --- -----__ --.- -- ---.. _- ---- -_- ----------- m a ----- --.- -._I__---~___---____------.---------- r pi
L lt/ -- ---- r
---- -F
-k ---- d-
e-e-
Y -m
r
-m-- -r
27
IS0 2553:1992(E)
Table A.1 - Examples of the use of elementary symbols (co~Mwed)
NO.
15
16
--
17
.---
18
Designation Sy-lnbol
(Numbers refer to table 1)
Single-J butt weld
v 8
Fillet weld
CL
10
Illustration
t -
- - - - - - - . - - m m - - . _ - -
Representation
-+
f -3
- . - - - - -
)H)>))HH)) ~ -- ---..-----_. -.----------_ ..-.. --_---- -- -m -m-
-----s-e_-.- ----- ----- -_----~-_--_---~~--__--- .-._ - .--- --_- ---.- -----.-_I__
;j ~~~~,~
28
IS0 2553:1992(E)
---se-- ----p- a-.---
Symbolization
ei her
!“1 H -- ----_-_-~---_--.------~--_I._--- --_._ --___-- H H -~---.~--___._----_------~~--.------__._ --_^-- --------
Hi I,--I --- .---- ------------.----- -_--- -- -.________________-__ ___I ____-.-
k -- -h k Y --
k
e--w
‘. \
or
m-e- r
/ k I7
k n -
29
IS0 2553:1992(E)
Table A.1 - Examples of the use of elementary symbds (corMw&)
No.
19
--
20
---
21
Designation Symbol
(Numbers refer to table 1)
Fillet weld
n 10
Illustration
--P----w--
Representation
I
& ‘. I
JHl)>)))>>w);
JJJJJJJJ1~)JJJJ: ------- E
30
IS0 2553:1992(E)
Symbolization
either
---- h
----
:
-m--
t
----
- - - - - - . - - I I - - - - - - - - - v - - -
or
31
IS0 2553:1992(E)
Table A.1 - Examples of the use of elementary symbols (contirwed)
No.
22
23
----
24
--
25
Designation Symbol
(Numbers refer to table 1)
Phry weld
i--l
Spot weld
0
12
Illustration
- Representation
. .~__- - - - - - - - - - - I _ - - - -
---
+3-b---
I I ------ , b
. - . - - - - - - I - - - - - - . - . - - - - . - - - - - - - - - - - . - - -__- - - - - - -~ -
.
-mm---
-b--+
1 I
-m----
l b
.-------~ -- --.-----.--------.---- _.- --.-. - .--.--. -___-___ ---. - _._--.-_-- -------.-.-- ..-- --
a
-m---B
:: -4-k--
L
------
- - -p - - - e - - - - - I I -
32
IS0 2553:1992(E)
Sytnbolizatim
either
I
-
, ,
-----m
\
1
.- -----
.
-- m e -m-
or
- \
, ‘. \ ’
__ ..-.- -.__--------.--------- --- . . ..- _..____ ____ --.--. ~__--_--
------------- -..---.------.-----------_-------__--_ ---^--.---------__--
33
IS0 2553:1992(E)
Table A.1 - Examples of the use of elementary symbols (cowluded)
No.
--
26
27
Designation Sytnbol
(Numbers refer to table I)
Seam weld
13
Illustration
Representation
- m m - - -
y~~r*Y~f*r*Yvt’Y+y’ .LA*A.A~A*l*lbl*l.,
,
-m--v-
34
IS0 2553:1992(E)
Symbolization
either
-- --- -- E , I
v----m
.
I
- ---e-
or
35
IS0 2553:1992(E)
Table A.2 - Examples of combinations of elementary symbols
No.
1
.--_-.
2
-- . ..-.- --.
3
--
4
--
5
Designation Symbol
(Numbers refer to table 1)
Butt weld between plates with raised
edges
and backing run
w9 1-9
----_- -.-___ -- --------- ----.- Square butt weld
Ii 2 . welded from both sides
2 2 ‘.
Single-V butt weld
and backing run
u9 3-9
------------.----.__-_ Double-V butt weld
v3 (X welcl)
3 3 L.
Illustration
----s-.-m------ -_----
Representation
-+ - cll . -- ..-. - - .-. .- t-) -. -- -.---.-- - @ii%- 1 -“____I__ ---------___I
_--. ---^ - _.-__-- --__--._- ---.- I . ..--. - --- . . . . . ..- -~-.~-~~.--.__--.--___--~-______ ----
~
HH)))H))H
v--
- ----- ----.--- ---_.-..----.------- ----- -. --_ .-.-. .- .-.--- ._-___ .-_--__---------__
i
))H)H)H>>
---
-------------..--_I----I.--.------.--------.---------
-____---------- -.-.- --..--_ -----.I-..-- - .^-- -I_....______ - _.__^______^ -__-__I~--- -____
)H))HH>>))
~
---
---.--m-.------- -*I-m.---.--“-----
36
IS0 2553:1992(E)
Symbolization
either
-----_
m wm- -----w-----m.-- ------
,’ ,’
/’ I
-
‘\
\ \ \ ‘L .t\
37
IS0 2553:1992(E)
Table A.2 - Examples of combinations of elementary symbols (confined)
No.
6
7
--
8
--
9
--
10
Designation Symbol
(Numbers refer to table 1)
Double bewel butt weld
V 4 (K weld)
4-4
----------------
Double V butt weld with broad root face
YS 5-5
- - - - - - - - - e - - e -
Double bevel butt weld with broad root face
Y 6
G-6 Double U butt weld
Y7
7-7 --
Illustration
- - - - - - - - - - - - -
- - - - - - - - - - - - - - - - -
-_ I - - - -
Representation - -
+ . a -.--- ” ” “- -. ad% ” ----- - - *- I ))N)))))>))~
~ ---
H))Ul)))H)
1
- m--
- ~“--~~~~-~-~“-~-~“~~~~~~--.--“-.”I~ - - . - . - - - - . - “ “ - - - - - - - - . - - - - - // H>)))))>>>> q a --- \* \ \ .’ ~------“---“----.“.~~~------~~~-”-----”- “.“.. - .----.-- -------.- ---------- I))))))))))>) 7 ----
----“--I-” -.----- “““_ ~~~~~~-~~~_“-.-“.---_._-.-_-_“_ ------_I
)))>))Hm)
3
mm-
----------- --w-v
38
IS0 2553:1992(E)
Symbolization
-_^___I____ --- --.. e-m-_----- _.________II__.-_ --- I--_ _ --,_-_ -.----
either
---- -----
q -a -
‘E
e--
or
- -
-----------.-------------_.~~----___- .-
”
-------we-. ---- ____ ----_--.-.-.._-.___- .___--- P---._._
-_------ _ -_______-..-.I_- --- ..-- -.__--_---- -I-. - ---.--- -------------
-
‘\
---_-- -_--------.--. ~__---_-___-- e---.-m-- ----1____--
,
- $.
\ .\
39
IS0 2553:1992(E)
No.
11
--
12
_--
13
--
14
Designation Symbol
(Numbers refer to table 1)
Double J butt weld
Y8
8-8
Single V butt weld
v3 and single U butt weld
Y7 3-7
Fillet weld
and fillet weld
n 10 90-10
Illustration
Table A.2 - Examples of combinations of elementary symbols (concluded) -- --B-e ---m.
---.------_-_--..-.---
Representation
. ~xib - ---- - - I
I )H)H)))lHH)1
v
40
IS0 2553:1992(E)
--- -w--e-- ---.-- __I-- -.w--
Symbolization
either
H -- -
1
or
\.~ ’ ~ \ w ‘TX* “’ ‘. ,‘l ‘. \ ‘\ ‘\. ’
41
IS0 2553:1992(E)
Table A.3 -- Examples of combinations of elementary and supplementary symbols
No. Symbol
--
1
2
---
3
_-_-_- _
4
5
Illustration
--_l_------.------- ..---- --------.- -.-.
7
,i
/
---.-_-_---.- --___ -----_-_ __-_______
Representation
-- - a
- - -- I_ - - a&
._-- - --
I a--------
n >>>)>))>))))I -- q ))H>>))>)~>> ---
L
Niii)H))i~)
- - - - e - w
0 )UV)) 1 H>))> ---
42
IS0 2553:1992(E)
Symbolization
either
m m _- -------I_-mp----- m m ----- _--- ---_ ~-----------------.~---
.LL&
43
IS0 2553:1992(E)
Table A.3 - Examples of combinations of elementary and supplementary symbols (comluded)
No.
---
6
-_---
7
8
Symbol
L L
V lMRl
Illustration
---- --
-----~- --------_.. -----
Representation
H)HH))H) E ----
i
N))>)>)))>)
-m-v
- - - I _ - - _ - - - - - - - - -
44
IS0 2553:1992(E)
Symbolization
either
-_------- .----- -.---.-.------------- -.-_- __ or
----- .-.--- --------.-.-------.------.-.----------___---.----
-___---_-.. --------.-..------.--.-.-.---..----------^.---------_I_---_--
J+ J*
I_-------
45
IS0 2553:1992(E)
No.
1
.-- .
2
3
_----
4
--
5
--
Table A.4 - Examples of exceptional cases
Illustration
-.a------
E
-+-+-
__------
L 46
IS0 2553:1992(E)
Sytnbolizatiou
either
b ------me -I t 1
F ---- .-- ~ --------
D--e
---
-
----
not recommended
or
_ . - - - - -e - - - - - - - - - -T . - - . - - - .
_.-____.---- - - . - - - - - _ - - - - - - - - - - - . - - - -
- -q - - - . - - - - -_ I__ - - . - - - - _ _ - - - . . - - - - - - - - - . -
---em----.-_- ._.______- -_----~ ------
incorrect
47
IS0 2553:1992(E)
Table A.4 - Examples of exceptional cases (concluded)
Representation
No.
6
-----
7
.-
8
---
Illustration [email protected] - - -- -.
----_--.--.---------------------.-------- .-.--. --____----- ---- --.---.-.-- .---
L L .-------.--w-e- - ---- ------.-_---- .-.---.-- ----- .---. - -.--.- -__- --._.-- ---._----_ ---- ---.- _-.--- -.~.-_-.-___-.-_-
q NOTE 1 When the arrow cannot point to a joint, symbolization cannot be used.
------I_--------- _----.-*..I__---.---I_-,--.-.----------
48
IS0 2553:1992(E)
- - - - ~ - - - - - - - . ~ - ~ - - - - - - - - - - - ~- .m-e -_ - - - - - - - I _ . - - - - - . - - - - -
either
not recommended
not recommended
Symbolization
or incorrect
49
IS0 2553:1992(E)
Annex B (informative)
Guidance for converting drawings made in accordance with IS0 2553:1974 into the new system in accordance with IS0 2553:1991
As an interim sotution for convertinq old drawings made in accordance with IS0 255X1974, Welds --- Symbolic representafiol, OII) dl-awings, the foliowing examptes show acceptable methods. This shatt, however, be con- sidered as a provisionat solution only during the change-over period.
For new drawings, the duat-reference tine -N-N----W--- shalt always be used.
Figure B.1 - Weld on arrow side
Figure 8.2 - Weld on other side
NOTE 8 When converting drawings made to one of the methods E or A in IS0 2553:1974 into this new system, it is es- pecially important for fillet welds to add the letter /x. 01 z in front of that dimension as the use of dimensioning leg length (z) or throat thickness (n) has been connected with the position of weld symbol on the reference line. \
50
This page intentionally left blank
IS0 2553:1992(E)
-- ----e--p yp______--- ------ - -____ ---.--Pm l l____l --.- - . ._-_e___I - _-________.____-_____l______l_._ l___.______. _ ________________I I___ ._.- -.. -.-..-.. -.--.-_ -.--. -. -sm.-.- - 1---. “. .-- --..-.. -- - .--... -.-. - -L.- --..--. ----I- .--.---. -_- _-. . _.-----.-.-
UDC 621.791:744.44:003.62
Descriptors: drawings, techical drawings, welded joints, brazed and soldered joints, symbols, graphic symbols.
Price based on 50 pages ---- -------VP .---------------- _.--- .--*- ---- --- -. -.-.-..---_-“--- -----. ----- _._-. -- -I--. _- _----- .--- --- _--.. - ---- - I._-_I_____. ..----. - _....____ --. _- -. . ..-. - - ._ .-_---__.. --__ -.-.._.-. . -- . . . ..- --” - .--. . . - ._... .-._.-. _ --__ .__ __-.. .____ ___ ____