tool steels quality requirements

8/12/2019 Tool steels quality requirements

1/24

U.D.C.: 669.14.018.26 February 1979

Tool steelsQuality requirements

EURONORM

96 79

Contents

1 SCOPE

2 REFERENCES

3 REQUIREMENTS3.1 Information to be supplied with enquiry and

order3.2 Production process3.3 Condition of delivery3.4 Requirement classes3.5 Chemical composition3.6 Mechanical properties

3.7 Surface quality3.8 Dimensions and tolerances

4 TESTING4.1 Number of samples4.2 Sampling4.3 Test methods4.4 Retests4.5 Documents

5 COMPLAINTS

ANNEX Comparison between the steel designations in this EURONORM and those inISO/DIS 495 7

1 SCOPE

1.1

This EURONORM covers the grades of wrought steellisted in Tables 2 to 5 namely :(a) unalloyed cold-work tool steels (see Table 2);(b) alloyed cold-work tool steels (see Table 3);(c) alloyed hot-work tool steels (see Table 4);(d) high-speed tool steels (see Table 5).

1.2

Unless otherwise stated, this EURONORM applies to atypes of hot-rolled, forged or cold-drawn products whicare to be supplied in one of the surface and heat-treatmeconditions given in clause 3.3.

EURONORM 3

EURONORM 4

2 REFERENCES

Brinell hardness test for steel. EURONO RM 18

Rockwell hardness test (scales A,C, B, F) for steel. EURONORM 21

Selection and preparation of samples and test-pieces for steel andiron and steel products.General technical delivery requirements for steel and iron and steelproducts.

3 REQUIREMENTS

3.1 Information to be supplied with enquiry andorder

The corresponding paragraphs of EURONORM 21 areapplicable.The following information in particular shall be given inthe enquiry and order :

(a) The shape, surface condition and the dimensions of tproduct (see clauses 3.3 and 3.8).

(b) The type of steel (see Tables 2 to 5) as well as the heatreated condition (see clause 3.3).

(c) The requirement class (see Table 1) and if called fothe kind of documentation required (see clause 4.5).

Only the last edition of the EURONORMS quoted is valid

Copyright by the Standardization O ffices of the European Com munities Member S tates


2/24

Pagel

3.2 Production process

Unless otherwise agreed in the order, the steelmaking process used shall be at the discretion of the manufacturer; itshall, however, be reported to the purchaser on request.Unless dictated by the shape of the product, the processfor working the material shall be at the manufacturer's

discretion.

3.6 Mechanical properties

3.6.1When ordered to the requirement classes 2 or 3, themaximum Brinell hardness values given in Tables 2 to 5apply for the delivery condition of steels ordered in theannealed condition.

3.3 Condition of delivery

The condition of delivery shall be agreed at the time of theenquiry or order.Usual surface conditions are : the hot-rolled or forged condition; the machined (ground, polished, turned, planed or mil

led) condition; the cold-reduced condition.

The usual heat-treatment condition is annealed. Individually manufactured blocks for moulds and discs are sometimes delivered in the hardened and tempered condition.

3.4 Requirement classes (')The steels covered by this EURONORM shall be orderedand delivered to one of the requirement classes given inTable 1.

3.5 Chemical composition

3.5.1

The chemical composition as expressed by the cast analysis shall conform to that given in Tables 2 to 5.

3.5.2

If ordered to the requirement classes 1 or 2 (see Table 1)the permissible deviations given in Tables 2a, 3a, 4a, and5a between the limiting values specified in Tables 2, 3, 4and 5 and the analysis of products up to 160 mm diameter

or equivalent dimensions shall apply.If necessary, the permissible deviations for larger productsshall be agreed at the time of the enquiry or order.

3.5.3

If ordered to the requirement class 3, for which theminimum Rockwell C hardness values are the acceptancecriteria, the cast analysis may deviate slightly from thelimiting values given in Tables 2 to 5.

3.6.2

When ordered to the requirement class 3 the minimumRockwell C hardened values given in Tables 2 to 5 applyfor hardening test-pieces prepared in accordance withclause 4.2.3.

3.6.3

In Figures 1 to 4 the hardness/tempering temperaturecurves of the steels are reproduced for guidance.

Note:

The hardness/tempering temperature-curve for a givensteel type can vary to a noticeable extent depending on thechemical composition of the cast or of the test-piece, andthe hardening and tempering conditions. Consequently thecurves in Figures 1 to 4 which were derived from the testresults from different sources can at present give only arough idea of the tempering behaviour of the steels.

The curves may, with the above reservations, be used fortest-pieces, which were tempered with the temperingtemperature in question, but which otherwise were prepared according to the conditions for the hardening test(see clause 4.2.3). When using the curves to estimate thehardness to be expected with hardened and temperedtools, it should be taken into account that the optimumheat-treatment conditions for tools are not necessarilyidentical to those specified for the test-pieces and particularly that the suggested heating times in clause 4.2.3 maynot be right for thicker tools.

(') In earlier EURONORMS, the term 'type of condition of delivery' wasused. It was replaced by 'requirement class' in order to avoid confusionwith the term 'delivery condition' which is often used for the treatmentcondition of the steel at the time of delivery.

3.7 Surface quality

3.7.1

All products shall have a surface finish compatible withthe production process used and be free from surfaceimperfections which could impair significantly their subsequent processing or serviceability.

3.7.2

Ground, polished or finished machined products shall befree from surface defects and decarburization.

3.7.3

Hot-rolled, forged, cold-drawn or rough-machined products shall be delivered with a machining allowance suffi-


3/24

Page 3

cient for the removal of decarburization and surfacedefects from all surfaces by machining or grinding.

3.7.3.1

In the case of hot-rolled, cold-drawn or hot-forgedrounds, hexagons and octagons, unless otherwise agreedat the time of the order, the values given in Table 6 shallapply for the minimum machining allowances per side forthe removal of surface decarburization and surface imperfections.

3.7.3.2

For products other than the bars mentioned in clause3.7.3.1, for bar shapes and dimensions not included in theTable and for rough-machined products, the minimummachining allowances are to be agreed at the time of thenquiry or order.

3.8 Dimensions and tolerancesThe dimensions and tolerances for tool steels are to beagreed at the time of the enquiry or order as long as nospecial EURONORMS for them are available.

4 TESTING

4.1 Number of samples 4.2 Sampling

4.1.1 Chemical composition

If agreed at the time of the inquiry or order, the castanalysis shall be reported by the manufacturer. If a product analysis is called for by the order, at least one sampleshall be taken per cast.

4.2.1

For product analyses the millings shall be taken uniformlyover the entire cross-section of the product. If this isimpracticable, the millings shall be taken from a suitablposition representing the whole cross-section.

4.1.2 Mechanical properties 4.2.2

4.1.2.1

For material supplied to the requirement classes 2 r 3 ofTable 1 with a guaranteed maximum Brinell hardness inthe annealed condition, one sample shall be taken fromeach cast, from each heat-treatment batch and from eachsize.If there is only a small difference in thickness of the different sizes (thickness ratio 1.5) the separation of the products into batches according to their dimensions can beomitted.

If the product is heat treated in a continuous furnace, onesample shall be taken per 10 t, but at least one sampleshall be taken from each cast and from each size range.

4.1.2.2

For products supplied to the requirement class 3 of Table1, with a guaranteed minimum Rockwell C hardness, on areference test-piece, one sample shall be taken per cast.

4.1.3 Surface quality

If the purchaser requires the surface quality to be tested,

then the number of samples to be taken shall be agreed atthe time of the enquiry or order.

For the Brinell hardness test the surface of the sample orof a test-piece taken from the sample in the delivery condtion shall be prepared in accordance with the requirementof EURONORM 3.

4.2.3

For the hardening test one test-piece shall be cut off fromthe sample as indicated in Figure 5. The test-pieces shalbe hardened and tempered under the conditions given inTables 2 to 5, precautions being taken to avoid decarburization.The total heating time in a salt bath (soaking time) shalbe:

For test-pieces from

Cold- or hot-work steels (Tables 2to 4)

High-speed steels (Table 5)

Total heating time for

hardeningmin.

25 13

temperingmin.

60At least

2 periods

of 60


4/24

Page 4

If the test-pieces are not heated in a salt-bath, the heatingtime must be extended accordingly.The cut surface shall be prepared in accordance withEURONORM 4 for the Rockwell C hardness test.

4.2.4

If the purchaser asks for a test of the surface quality, thedetails for sampling and for the preparation of the test-pieces shall be agreed at the time of the enquiry or order.

4.2.5

General requirements for the selection and preparation oftest-pieces shall be in accordance with EURONORM 18.

4.3 Test methods

4.3.1In cases of dispute, the methods for chemic l n lysis shallbe those laid down in the relevant EURON ORM S. Whereno EURONORMS are available for determining the alloycontent of a steel then the methods may be agreed between the manufacturer and the user.

4.3.2

The Brinell hardness test shall be carried out in accordance with EURONORM 3.

4.3.3

The Rockwell C hardness test shall be carried out inaccordance with EURONORM 4.

4.3.4

If the purchaser asks for the surface quality to be tested,the test method shall be agreed at the time of the enquiryor order.

4.4 Retests

For retests the appropriate paragraphs of EURONORMS21 shall apply.

4.5 Documents

The appropriate paragraphs of EURONORMS 21 areapplicable for documentation.

5 COMPLAINTS

For complaints and the method of dealing with them the appropriate paragraphs of EURONORMS 21 appl

Table 1

Requirement classes '

Requirement

Chemical compositionHardnessin the annealed conditionof quenched and tempered reference test-pieces

Requirement class 1

1 2 3

X X X

- X X

- - X

1 The numbers referring to the delivery requirements are provisional. Permanent numbers will be given as soon as aEURONORM for a system of reference numbers and letters for the 'requirement classes' has been drawn up.


5/24

Page 5

Table 2

Unalloyed cold-work tool steelsChemical composition (cast analysis), temperature for hardening and hardness in the annealed or hardened and tempered

condition

Type of steel

CT 70CT 80CT 90CT 105CT 120

1 Elements noprevent theS 0.20 CrSee clause 4.

C

0.65 to 0.740.75 to 0.840.85 to 0.940.95 to 1.091.10 to 1.29

quoted in the above addition from scrap or, S 0.25 Cu and S 02.3.

Chemica

Si

0.10 to 0.300.10 to 0.300.10 to 0.300.10 to 0.300.10 to 0.30

lble shall not be intenother materials used25 Ni should, how

composition '

Mn

0.10 to 0.350.10 to 0.350.10 to 0.350.10 to 0.350.10 to 0.35

max.

0.0200.0200.0200.0200.020

smax.

0.0200.0200.0200.0200.020

Hardness

(annealed)

max.HB

183192207212217

Hardening test 2

Quenchingtemperature

C 1 0

800790780780770

Medium

WaterWaterWaterWaterWater

Temperingtemperature

C 10

180180180180180

Hardnessmin.HRC

5758606162

tionally added to the steel other than for the purpose of finishing the heat. All reasonable precautions shall be taken toin manufacture, of such elements which affect the hardenability, mechanical properties and applicability. Contents ofever, be regarded as being in conformity with the above requirement.

Table 2a

Unalloyed cold-work tool steelsPermissible deviations between specified analysis (see Table 2) and product analyses

(See clause 3.5.2)

Permissible deviations '

C

0 . 0 3

Si

0.03

M n

0.04

P

+ 0.005

%s

+ 0.005

1 The deviations, other than when maxima only are specified, apply either above or below the specified limits of the range but notboth above and below for the same element from different samples from the same cast.When maxima only are specified the deviations are positive only.The values are valid only if the samples are selected in accordance with EURONORM 18 so that they represent the averagecomposition of the cross-section of the product.


6/24

Table 3

Alloyed cold-work tool steelsChemical composition (cast analysis), temperature for hardening and hardness in the annealed or hardened and tempered conditions

a

oc,

Type of steal

100 V 2

60 SiMn 7

51CrMnV4

45 WCrV 8

55 WCrV 8

102 Cr 6

107 CrV 3

107 WCr 590 M nV 8

95 MnWCr 5

X 100 CrMoV 5 1

X 160 CrMoV 12 1

X 210 Cr 12X 210 CrW 12 1

S CrMo 16X 5 CrMo 5 1

7 CrNiMo 8

35 CrMo 8

X 21 Cr 13X 31 Cr 13

41 Cr 13

38 CrMo 16 1

102 CrMo 17

Chemical composition '

% C

0.95 to 1.10

0.52 to 0.60

0.48 to 0.55

0.40 to 0.50

0.50 to 0.60

0.95 to 1.10

1.00 to 1.15

1.00 to 1.15

0.85 to 0.95

0.90 to 1.00

0.95 to 1.05

1.45 to 1.75

1.90 to 2.20

2.00 to 2.30

S 0 .07 O . 0 7

g 0.10

0.30 to 0.40

0.16 to 0.25

0.26 to 0.35

0.36 to 0.45

0.33 to 0.43

0.95 to 1.10

1 For all steels phosphorus ^ 0 .030% an2 See clause 4.2.3.3 These steels are used in the carburized 4 This steel is normally supplied in the pr

%Si

0.10 to 0.30

1.50 to 2.00

0.10 to 0.40

0.80 to 1.10

0.80 to 1.10

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.10 to 0.40

0.05 to 0.25

0.05 to 0.25

0.10 to 0.40

0.30 to 0.80

1.0

- S 1.0 1.0 1.0S 1.0

i sulphur S 0.030%.

nd heat-treated conditioe-heat-treated condition

% Mn

0.10 to 0.35

0.60 to 0.90

0.70 to 1.00

0.15 to 0.45

0.15 to 0.45

0.15 to 0.45

0.25 to 0.55

.70 to 1.00

1.70 to 2.20

1.05 to 1.35

0.35 to 0.65

0.15 to 0.45

0.15 to 0.45

0.15 to 0.45

0.05 to 0.25

0.05 to 0.25

0.20 to 0.50

0.50 to 1.50

S 1.0

S 1.0

S 1.0

S 1.0

S 1.0

.

with a hardness of a

% Cr

0.90 to 1.20

0.90 to 1.20

0.90 to 1.20

1.35 to 1.65

0.60 to 0.90

0.80 to 1.10

0.20 to 0.50

.35 to 0.65

4.50 to 5.50

11.00 to 13.00

11.00 to 13.00

11.00 to 13.00

3.50 to 4.50

4.50 to 5.50

1.80 to 2.10

1.50 to 2.20

12.00 to 14.00

12.00 to 14.00

12.50 to 14.50

15.00 to 17.00

16.00 to 18.00

^proximately 300 HB.

% Mo

0.90 to 1.40

0.70 to 1.00

0.40 to 0.60

0.90 to 1.20

0.10 to 0.30

0.40 to 0.60

1.00 to 1.50

0.40 to 0.70

% Ni

0.40 to 0.60

S 1.0

1.0

S 1.0

% V

0.10 to 0.30

0.10 to 0.20

0.10 to 0.30

0.10 to 0.30

0.05 to 0.25

0.10 to 0.30

0.05 to 0.25

0.25 to 0.45

0.35 to 0.65

w

1.70 to 2.30

1.70 to 2.30

1.00 to 1.60

0.40 to 0.70

0.80 to 1.10

Hardness(annealed)

max.HB

212

229

241

229

229

223

219

229

229

229

241

255

248

255

121

128

156

30 04

223

235

255

285

285


C 10

790

855

865

900

900

840

800

820

790

800

970

1 020

970

970

'1

4

1 0101 0101 0101 0101 030

Harden

Quenchingmedium

WaterOilOilOilOil

OilWater

OilOilOil

AirAir

OilOil

1

1

1

4

OilOilOilOilOil

ng test2


C 10

180180180180180

180180180180180

180180

180180

1

1

A

180180180180180

Hardnessmin.HRC

6156555658

6061616060

6061

6262

j

j

i

4

4549514958


7/24

Table 3 a

Alloyed cold-work tool steelsPermissible deviation between cast analysis (see Table 3) and product analysis

(See clause 3.5.2)

Page 7

Type of steel

100 V 2

60 SiMn 751 CrivlnV 445 WCrV 855 WCrV 8

102 Cr 6107 CrV 3107 WCr 590 MnV 895 MnWCr 5

X 100 CrMoV 5 1X 160 CrMoV 12 1

X 210 Cr 12X 210 CrW 12 1

5 CrMo 16X 5 CrMo 5 17 CrNiMo 8

35 CrMo 8

X 21 Cr 13X 31 Cr 13 41 Cr 13 38 CrMo 16 1 102 CrMo 17

1 The deviations, other than wdifferent samples from the saWhen maxima only are speciThe values are valid only if f


C

0 . 0 3

0 . 0 3 0.03 0.03 0.03

0 . 0 3 0 . 0 3 0 . 0 3 0 . 0 3 0.03

0.03 0.04

0 . 0 5 0 . 0 5

+ 0.02+ 0.02+ 0.02

0.02

0.02 0.03 0 . 0 3 0 . 0 3 0 . 0 3

ien maxima 01me cast,ied the deviatiie samples are

Si

0 . 0 3

0 . 0 5 0 . 0 3 0 . 0 5 0 . 0 5

0.03 0.03 0 . 0 3 0 . 0 3 0 . 0 3

0 . 0 3 0 . 0 3

0 . 0 3 0 . 0 3

0 . 0 3 0.03 0.03

0 . 0 3

+ 0.05+ 0.05+ 0.05+ 0.05+ 0.05

lly are specifi

ons are positivselected in ace

Mn

0 . 0 4

0.04 0.04 0.04 0 . 0 4

0 . 0 4 0 . 0 4 0 . 0 4 0 . 0 8 0 . 0 6

0.04 0 . 0 4

0.04 0 . 0 4

0 . 0 4 0 . 0 4 0 . 0 4

0 . 0 4

+ 0.04+ 0.04+ 0.04+ 0.04+ 0.04

1 apply either

: only.jrdance with E

P

+ 0.005

+ 0.005+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005+ 0.005

+ 0.005

+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005

above or below

U R O N O R M 1

s

+ 0.005

+ 0.005+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005+ 0.005

+ 0.005

+ 0.005+ 0.005+ 0.005+ 0.005+ 0.005

Cr

0 . 0 5 0 . 0 5 0 . 0 5

0.05 0 . 0 5 0 . 0 5 0 . 0 5 0 . 0 5

0 . 1 0 0 . 1 5

0 . 1 5 0.15

0.10 0 . 1 0 0 . 0 7

0 . 0 7

0 . 1 5 0 . 1 5 0.15 0 . 1 5 0 . 1 5

Mo

0 . 0 5 0.05

0 . 0 5 0 . 0 5 0 . 0 3

0 . 0 5

0 . 0 5 0 . 0 5

N i

'

0 . 0 3

+ 0.03+ 0.03+ 0.03

V

0 . 0 2

0.02 0 . 0 2 0 . 0 2

0 . 0 2

0 . 0 2 0 . 0 2

0 . 0 3 0.04

w

0.07 0.07

0 . 0 7

0 . 0 4

0 . 0 5

the specified limits of the range but not both above and below for the same element from

so that they represent the average composition of the cross-section of the product.


8/24

Table 4

Hot-work tool steelsChemical composition (cast analysis), temperature for hardening and hardness in the annealed or quenched and tempered conditions

TOn

Type of steel

40 NiCrMoV 16

55 NiCrMoV 7

35 CrMo 8

30 CrMoV 12 11X 37 CrMoV 5 1

X 40 CrMoV 5 1 1

X 30 WCrV 5 3

X 30 WCrV 9 3X 21 Cr 13

X 22 CrNi 17

X 16 CrNiSi 25 20

X 13 NiCrSi 35 16

Chemical composition'

% C

0.35 to 0.45

0.50 to 0.60

0.30 to 0.40

0.25 to 0.350.32 to 0.42

0.35 to 0.45

0.25 to 0.35

0.25 to 0.35

0.16 to 0.25

0.17 to 0.25

S 0.20

S 0.15

1 For all steels phosphorus ^ 0.030% an2 See clause 4.2.3.J The steel is normally supplied in the pr4 Hardness in the quenched condition g

%Si

0.10 to 0.40

0.10 to 0.40

0.30 to 0.80

0.10 to 0.400.90 to 1.20

0.90 to 1.20

0.10 to 0.40

0.10 to 0.40

S 1.00

S 1.001.50 to 2.50

1.00 to 2.00

d sulphur S 0.030%.

e-heat-treated condition192 HB.

% M n

0.35 to 0.65

0.65 to 0.95

0.50 to 1.50

0.15 to 0.450.25 to 0.55

0.25 to 0.55

0.15 to 0.45

0.15 to 0.45

S 1.00S 1.00

SS2.00

g 2.00

% C r

1.70 to 2.00

0.95 to 1.25

1.50 to 2.20

2.50 to 3.504.50 to 5.50

4.50 to 5.50

2.00 to 3.00

2.50 to 3.50

12.0 to 14.0

16.0 to 18.0

24.0 to 26.0

15.0 to 17.0

with a hardness of approximately 300 HB.

% Mo

0.40 to 0.60

0.30 to 0.50

0.40 to 0.60

2.50 to 3.001.20 to 1.70

1.20 to 1.70

% Ni

3.60 to 4.10

1.50 to 2.00

S 1.001.50 to 2.50

19.0 to 22.0

33.0 to 37.0

% V

0.05 to 0.25

0.05 to 0.25

0.40 to 0.700.30 to 0.50

0.85 to 1.15

0.40 to 0.70

0.30 to 0.50

w

4.50 to 5.10

8.50 to 9.50

Hardness(annealed)

max.HB

277

2483003

229229229235241223269

Hardening test2


C =: 10

850

8503

1 0401 020102010601 1501 0101 0001 1001 100

Quenchingmedium

Oil

Oil

OilOil

Oil

Oil

Oil

Oil

Oil

Wate r

Water


C 10

500

5003

550550550600600550550

Hardnessmin.HRC

40

423

46484846483839


9/24


10/24

Table 5

High-speed steelsChemical composition, temperature for hardening and hardness in the annealed or hardened and tempered conditions

Group

Basic types

IncreasedC + V content

IncreasedCo content

Increased C +V content + Co

IncreasedC content + Co

Type of steel '

HS 18-0-1HS 2-9-2HS 1-8-1HS 6-5-2

HS 6-5-3HS 6-5-4

HS 18-0-1-10HS 18-1-1-5HS 6-5-2-5

HS 12-1-5-5HS 10-4-3-10

HS 2-9-1-8HS 7-4-2-5

Chemical composition2

% C

0.73 to 0.830.95 to 1.050.77 to 0.870.82 to 0.92

1.15 to 1.301.25 to 1.40

0.75 to 0.850.75 to 0.850.85 to 0.95

1.40 to 1.551.20 to 1.35

1.05 to 1.201.05 to 1.20

% Co

I }

9.50 to 10.54.70 to 5.204.70 to 5.20

4.70 to 5.209.50 to 10.5

7.50 to 8.504.70 to 5.20

% Cr

3.50 to 4.503.50 to 4.503.50 to 4.503.50 to 4.50

3.50 to 4.503.50 to 4.50

3.50 to 4.503.50 to 4.503.50 to 4.50

3.50 to 4.503.50 to 4.50

3.50 to 41503.50 to 4.50

% Mo

s8.20 to 9.208.00 to 9.004.60 to 5.30

4.60 to 5.304.60 to 5.30

5

0.70 to 1.004.60 to 5.30

0.70 to 1.003.20 to 3.90

9.00 to 10.03.50 to 4.20

V

0.90 to 1.201.70 to 2.200.90 to 1.401.70 to 2.20

2.70 to 3.203.70 to 4.20

1.30 to 1.801.10 to 1.601.70 to 2.20

4.75 to 5.553.00 to 3.50

0.90 to 1.401.70 to 2.20

W

17.2 to 18.71.50 to 2.101.40 to 2.005.70 to 6.70

5.70 to 6.705.70 to 6.70

17.2 to 18.717.2 to 18.75.70 to 6.70

11.5 to 13.09.0 to 10.0

1.30 to 1.906.40 to 7.40

Hardness(annealed)

max.HB

269255255255

269277

293277269

293293

277277

Hardening test3


C 10

1 2601 2001 2101 220

1 2201 210

1 2801 2701 230

1 2401 230

1 1901 200

Quenchingmedium

OilOilOilOil

OilOil

OilOilOil

OilOil

OilOil


C 10

560560560560

560560

560560560

560560

530540

Hardnessmin.HRC

63646364

6566

646464

6566

6666

1 Succession: W-Mo-V-Co.2 For all steels silicon S 0.50%, manganese S 0.40%, phosphorus S 0.030% and sulphur S 0.030%.3 See clause 4.2.3.4 A dash means that the corresponding alloying element shall not intentionally be added to the heat and that in the case of cobalt the content of the cast should be 1% Co.s A dash means that the corresponding alloying element shall not intentionally be added to the heat and that in the case of molybdenum the content of the cast should be S 0.7% Mo. ;


11/24

Page 11

Table 5 a

High-speed steels

Permissible deviations between specified analysis (see Table 5) and product analysis

(See clause 3.5.2)

Type of steel

HS 18-0-1HS 2-9-2HS 1-8-1HS 6-5-2

HS 6-5-3HS 6-5-4

HS 18-0-1-10HS 18-1-1-5

HS 6-5-2-5HS 12-1-5-5HS 10-4-3-10

HS 2-9-1-8HS 7-4-2-5


C

0.030.030.030.03

0.03D.03

0.030.03

0.030.040.03

0.030.03

Si

+ 0.03+ 0.03+ 0.03+ 0.03

+ 0.03+ 0.03

+ 0.03+ 0.03

+ 0.03+ 0.03+ 0.03

+ 0.03+ 0.03

Mn

+ 0.04+ 0.04+ 0.04+ 0.04

+ 0.04+ 0.04

+ 0.04+ 0.04

+ 0.04+ 0.04+ 0.04

+ 0.04+ 0.04

P

+ 0.005+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005

s

+ 0.005+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005

+ 0.005+ 0.005+ 0.005

+ 0.005+ 0.005

Co

0.150.10

0.100.100.15

0.100.10

Cr

0.100.100.100.10

0.100.10

0.100.10

0.100.10 0.10

0.100.10

Mo

0.100.100.10

0.100.10

0.05

0.100.050.10

0.100.10

V

0.050.070.050.07

0.100.10

0.050.05

0.070.100.10

0.050.07

w

0.20 0.070.050.10

0.100.10

0.200.20

0.10 0.150.10

0.050.10

1 The deviations, other than when maxima only are specified, apply either above or below the specified limits of the range but not both above and below for the same element fromdifferent samples from the same cast.When maxima only are specified the deviations are positive only.The values are valid only if the samples are selected in accordance with EURONORM 18 so that they represent the average com position of the cross-section of the product.

Table 6

Minimum machining allowances per side for bars with round, hexagonal or octagonal cross-section

(See clause 3.7.3)

Ordereddiameter

m m 1

S 16> 16 S 25> 25 40> 40 S 60> 60S 80> 80 S 100> 100 S 125> 125 S 150> 150 S 200> 200 S 250> 250 S 300> 300 S 400

Minimum machining allowance per side for

hot-rolled orcold-reduced2 bars

mm

0.50.81.21.62.02.53.24.05.06.0

hot-forged bars

mm

1.51.51.72.02.53.03.54.05.06.07.08.0

1 In the case of hexagons and octagons the distance across the flats is the ruling criterion.2 It should be noted that not all sizes mentioned in this table are available in the cold-reduced condition.


12/24

Page 12

P

c-X

70

6"6

62

58

54P

= 501c

-o 4 6

4 2

38

3 4

3

Steel CT 70

Heat treatment800 C/water

j 11 1 I

0 100 200 30 0 400 500 60 0 70 0 800

Temper ing tempera ture in C

7 0

6 6

62

58

54

50

4 6

42

38

34

300

Y

\\

V\1

Steel CT 90


. . j I I _ j .,_.10 0 200 300 4O0 500 600 700 800


7 0

6 6

62

5 8

54uPXcC

-oU i

50

4 6

42

38

3 4

30

cc-

Ucc

c-

7 0

6 6

62

5 8

54

50

4 6

4 2

38

3 4

3

,\

\\

Steel CT 80


L_J .J ,

-

0 100 200 30 0 400 500 600 700 800


7 0

6 6

62

5 8

54

50

4 6

4 2

38

3 4

30

Steel CT 105


I, I _ j 1L_l I 1 110 0 200 300 400 500 600 700 800


Steel CT 120


.... .. 1 . . . . . I _ j L_.L_0 100 200 300 400 500 60 0 70 0 800


Fig. 1 Hardness-tempering temperature-curves for unalloyed cold-work tool steels(see table 2 and clause 3.6.3)


13/24


14/24

Page 14

c

e

D

70

66

62

58

54

50

46

42

38

34

30

\

kVN

\\

- Steel 107 CrV 3


_ _l 1 I

S,V\

v\\ v

\,

100 200 300 400 500 600 700 8

Tempering temperature in C

cD

c

70

66

62

58

54

50

46

42

38

3 4

30

V s

\\

V\

- Steel 107 WC r 5

Heat treatment820 C/oil

_ ._ l . . . j

0 100 200 300 400 500 600 7 8


70

66

62

58

54

50

46X 42

38

3 4

uP

X

PD

Crt

D

30

- Steel 90 MnV 8


0 100 20 0 300 400 500 600 700 8


70

66

62

58

54

50 46

42

38

34

30

Vl

s -^

-Steel X 100 CrMoV 5 1

Heat treatment970 C/air

. _ . . L _ L _ .1 _ - l ._j

s\

0 100 20 0 300 400 500 600 700 8


PD

c

pD

cu.rt

D

70

66

62

58

54

50

46

42

38

34

30

V NN

S , S,

,\

- Steel 95 MnW Cr 5


J _ j ...0 100 200 300 400 500 600 700 8


/u66

62

58

54

5046

42

38

347

J

-Steel X 160 CrMoV 12 1

Heat treatment1 020 C/air

1 I L _ 1

\V\\\

0 100 200 300 400 500 600 700 8


Fig. 2b Hardness-tempering temperature-curves for alloyed cold-work tool steels(see table 3 and clause 3.6.3)


15/24

Page 15

cD

e-

70

66

62

58

54uPD

t 50C3

Ui

46

42

38

34

30

^ sX

- Steel 210 Cr 12


I J I _J_ J 1 1

ss,s \

0 100 200 300 400 500 600 700 8


70

66

62

58

54

50

46

DC 42

38

34h

30

- Steel X 21 Cr 13

Heat treatment1 010 "C/oil

_ j I . . .u_

\

^\\

\0 100 200 300 400 500 600 700 8


uPD

OJc

Ui

rtD

cD

c-o

U

D

70

66

62

58

54

5046

42

38

34h

30

-Steel 210 CrW12 1


j I

- i\

V\\

0 100 200 300 400 500 600 700 800


/u66

62

58

54

50

46

42

38

34?n

--

- Steel X 31 Cr 13

Heat treatment

1 010 C/oil1 L_l

VV\1

\\\' 1V\\

0 100 200 300 400 500 600 700 800


Fig. 2c Hardness-tempering temperature-curves for alloyed cold-work tool steels(see table 3 and clause 3.6.3)


16/24

Page 16

P

D

co

7

66

62

58

54

5

46

42

38

3 4 -

30

- Steel 41 Cr 13

" Heat treatment1 010 C/oil

J I ' ' '

Ss

0 100 200 300 400 500 600 700 800


70

6662

58

54

50

46

42

38

34

30

PD

cC

PD

c-

/u66

62

58

54

50

46

42

38

34?

r y

\

fSteel 38 CrMo 16 1

Heat treatment1 010 C/oil

. - j .. J ._.'

\\

\\\

0 100 200 300 400 500 600 700 800

Tempering temperature in "C

N|>

sfvs i


17/24

Page 17

cD

c

UP

Dc

OJ

c

62

58

54

5046

fi

38

34?

\

-Steel 40 NiCrMoV 16


i . . . j _ J _ J .... -

' S v\

\

1 2 3 4 5 6 7 8


7

66

62

58

54

5

46

42

38

34

3

-Steel 30 CrMoV 12 11

Heat treatment

1 040 C/oil_ . j

s.V

1\\

0 100 200 300 400 500 600 700 8

Tem pering temp erature in C

70

66

62

58

54

5046

42

38

34

30

oD

c

e

UcD

DC

70

66

62

58

54

50

46

42

38

34h

30

- Steel 55 NiCrMoV 7


_ j L._

-

\

0 100 200 300 400 500 600 700 8

Tem pering temp erature in C

ucXcn


18/24

Page 18

P

c-o

cD

70

66

62

58

54

50

46

42

38

34

-Steel X 30 WCrV 5 3


_ l _ l .. . J -J

\\\\

0 1 2 3 4 5 6 7 8


70

66

62

58

54

50

ra

t 42

38

34h3

- Steel X 21 Cr 13

Heat treatement1 010 C/oil

_ l _ l . _ k . ,

S\>l\\\

0 1 2 3 4 5 6 7 8


uPD C

cU i

,

70

66

62

58

54

5046

42

38

34

30

..

t Steel 30 WCrV 9 3

Heat treatment- 1 150 C/oil

1 1 I J

**-*

\)

1\\\

P

c-

100 200 300 400 500 600 700 800


70

66

62

58

54

50

46

42

38

34

3

Steel X 22 C r N i 17

Heat t reatment1 000 "C/oil

-I I _J 0 1 2 3 4O 5 6 7 8


Fig. 3b Hardness-temp ering temp erature-curves for hot-work tool steels(see table 4 and clause 3.6.3)


19/24

Page 19

PD

c-D

68

64

60

56

52

48

44

41),

Steel HS 18-0-1


I II 1

)50' 30] /0( )0( 600 700Tempering temperature in "C

68

64

y 60P

* 5 6(

I 52rt

* 4 8

44LU

Steel HS 1-8-1

Heat treatment

1 210 "C/oil|f- 1 - 1-

\\\1

0 50 300 400 500 600

Tempering temperature in "C

700

0 50 300 400 500 60 1Tempering temperature in "C

0 50 300 400 500 600Tempering temperature in "C

0 50 300 400 500 600Tempering temp erature in C

68

64

y 60P 56

(

I 52u 4 8

44

4U(

Steel HS 6-5-4


II 1 1 1 1 1 1

)5o :01 k oc) 5o c) 6

N

0 0

s\\ V

\\

7 3


Fig. 4 a Hardness-tempering temperature-curves for high-speed steels(see table 5 and clause 3.6.3


20/24

Page 20

c

e-o

0 50 300 4 5 6Temper ing tempera ture in C

UcD C

c-

68

64

60

56

52

48

44

40

Heat t reatment1 270 "C/oil

_L_IJ I I Ll I I

0 50 300 4 5 6


UcX

c-

u.

rt

I

68

64

60

56

52

48

444U(

_ Steel HS 6-5-2-5

Heat treatment

1 230 C/oilII I I I I I 1

1 50 .301 / co c) 6 0 0

\\

73 0

68

64

60

56

52

48

4440

- Steel HS 12-1-5-5

Heat treatment

1 240 C/oill I I I I I 1

05 :30(] 4 0 0 coc) 6 0 0 7 0 0Tempering temperature in C Temper ing tempera ture in C

P

^ 5 6c

-o

0 50 300 4 5 6Temper ing tempera ture in C

68

64

gbU

s 56

1 5 2

48

44

4U(

- Steel HS 2-9-1-8


II 1 1 1 1 1 1

)5 ' :30() k o c) 5o c) 6 0 0

\\\

3 0Temper ing tempera ture in C

Fig. 4b Hardness-tempering temperature-curves for high-speed steels(see table 5 and clause 3.6.3)


21/24

Page 21

UcD

Cd

0 50 300 40 0 5 0 0 6 0 0 70 0Tempering temperature in C

Fig. 4c Hardness-tempering temperature-curves for high-speed steels(see table 5 and clause 3.6.3)


22/24

A. Product diameter or thickness 2 15

Product

B. Product diameter or thickness < 15

Sample

Th e test piece shall according to the choice of the manufacturer

a) be either identical with the test sample,or

b) be taken from the sample by one cut as shown below,

A

ws15

zr_-_-^

or (c) be taken from the sample by two cuts as shown below.

rLO

Ml

w*15

J

-ou

erato

Sample

d


23/24

Page 23

ANNEX

Comparison between the steel designations in this EURONORM and those in ISO DIS 4957

Steel designation

E U R O N O R M 96 ISO/DIS 495 7

Unalloyed cold-work tool steels

CT 70CT 80CT 90CT 105CT 120

12345

Alloyed cold-work tool steels

100 V 260 SiMn 751 CrMnV 445 WCrV 8

55 WCrV 8102 Cr 6107 CrV 3107 WCr 590 MnV 895 MnWCr 5X 100 CrMoV 51X 160 CrMoV 12 1X 210 Cr 12X 210 CrW 12 15 CrMo 16X 5 CrMo 5 17 CrNiMo 835 CrMo 8X 21 Cr 13X 3 1 Cr 13 41 Cr 13 38 CrMo 16 1 102 CrMo 17

10111213

14/1516171819202122232425262728293031

Hot-work tool steels

40 NiCrMoV 1655 NiCrMoV 735 CrMo 830 CrMoV 12 11X 37 CrMoV 5 1X 40 CrMoV 5 1 1X 30 WCrV 5 3X 30 WCrV 9 3X 21 Cr 13X 22 CrNi 17X 16 CrNiSi 25 20

X 13 NiCrSi 35 16

H lH 2H 3H 4H 5H 6H 7H 8

High-speed steels

HS 18-0-1HS 2-9-2HS 1-8-1HS 6-5-2HS 6-5-3HS 6-5-4HS 18-0-1-10HS 18-1-1-5HS 6-5-2-5HS 12-1-5-5HS 10-4-3-10HS 2-9-1-8HS 7-4-2-5

S 1S 2S 3S 4S 5

S 6S 7S 8S 9S 10S 11S 12


24/24

BFR 240 DKR 41,40 DM 15 ,30 FF 33,80 LIT 6 300 HFL 16,40 UKL 4 USD 7.40

OFFICE FOR OFFICIAL PUBLICATIONS Catalogue number: CB-23-77-227-EN-COF THE EUROPEAN COMMUNITIES

ot postale 1003Luxembourg

EURONORMS are on sale at:United Kingdom: British Standards Institution, 2 Park Street, London W1A 2BSIreland: Institute for Industrial Research and Standards, Ballymun Road, Dublin 9Denmark: Dansk standardiseringsrd, Aurehjvej 12, Postboks 77, DK-2900 Hellerup