8 klasifikasi baja
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metalurgiTRANSCRIPT
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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FERROUS ALLOYS
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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Grouping of Steel, base on….
• Komposisi kimia
Plain carbon steel (non-Alloyed Steel !a"a Karbon renda# !a"a karbon menenga# !a"a Karbon tinggi
!a"a Paduan (Alloyed Steel $o% Alloy steel &ig# Alloy steel
• Struktur MikroFerritic, Martensitik, austenitik
• Bentuk Produk bar, plat, strip, wire, profle
• Metode produksi
Hot rolled, cold rolled• Deoxidasi
Killed, semi killed• Kekuatan Tarik ,
&S$A, '&SS,• Metode Perlakuan Panas/Penuatan
Temperin, !arburi"in, nitridin, PH
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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!asic Steel lassi)cation
• Plain (non Alloyedarbon steel *ika
(Smit#,+a/imum elemenanganese +0
Sulfur 1.120
P#osp#orus 1,130
Silicon 1,10
• Ba#a Paduan $enda% &low 'llo(Steel) prosentase Paduan
Total paduan *+ &-a(ar,..)
'l0,1
!r 0,1
!o0,1
Mo0,2
-i0,3 &'STM)
4lemen masin5masin lebi%dari ,6
• &ig# Alloy Steel 4otal paduan lebi# dari 20
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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Carbon Content Alloy Content
Low-carbon steels
(≤ 0.25 wt.%!
"la#n-carbon steels (no allo$#n ele&ent e'cet Mn ) to 1.*5 wt.%!
Me+#)&-carbonsteels
(0.25 - 0.55 wt.%!
Low-allo$ steels (total allo$ content , 5 wt.%!
#-carbon steels(/ 0.55 wt.%!
#-allo$ steels (total allo$ content / 5 wt.%! - Tool steels an+ sta#nless steels
Steel- Classification According to Carbon content Composition
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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E'a&le- lass##cat#on accor+#n to M#crostr)ct)re
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
$o% Alloy &ig# Alloylo% carbon51.62%t0
med carbon1.62-1.7%t0
#ig# carbon1.7-+.3%t0
'ses autostruc.s#eet
bridgesto%erspress.8essels
cranks#aftsbolts#ammersblades
pistonsgears%earapplic.
%earapplic.
drillssa%sdies
#ig# 4applic.turbinesfurnaces9. corros.resistant
:/ample +1+1 3+1 +131 331 +12 3+1 13
Additions noner,9;i, o
noner, ;io
noner, 9,o, <
r, ;i, o
plain &S$A plain#eat
treatableplain tool
austentiticstainless
;ame
&ardenability 1 = = == == === 1 4S - 1 = == = == 1:$
= = 1 - - -- ==
increasing strengt#, cost, decreasing ductility
Steel
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
Kodi)kasi !a"a (Steel >esignation
• A?S?, American ?ron Steel ?nstitute
• AS4, American Standard for 4esting and aterial
• >?;, >eutsc#es ?nstitut fur ;ormung
• *?S, *apanese ?ndustrial Standard• :;, ommittee :uropean de ;ormali@ation
• ?S, ?nternational Standardi@ation rgani@ation
• SA:, Society for Automoti8e :ngineering
• ;B, Association francaise de normali@ation (AB;C
• ';S ('ni)ed ;umbering System , SA: and AS4
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
A?S?-SA: (prinsipal"la#n arbon(non-allo$e+ steel! Allo$e+ steel!
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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7-S
• G3+11
c#romiumSteel
about 1, 0carbon
• K3+311
UNS Descriptor Ferros Metals
Dxxxxx Specified mechanical Properties SteelFxxxxx Cast irons
Gxxxxx SAE and Former Carbon Alloy steel(ex toolSteel)
Hxxxxx AISI H steel
xxxxx Cast Steel
!xxxxx "iscellaneo#s steels and ferro#s alloy
Sxxxxx Heat and corrosion resistant (stainless)steel
$xxxxx $ool steel
UNS Descriptor %eldin& filler metal
%xxxxx %eldin& filler "etal' coered And t#b#larelectrode Classified
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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$o% Alloy Steel
• >igit Pertama merupakan "umla#relatif (4ela# dikalikan +11
• >igit berikutnya menun"ukkankomposisi paduan, tergantung>ari "enis paduan
onto# D
;ikel c#romium steel, dengan
komposisi 1,63 0, ,2 0;ikel, 1,E #romium
D8- .9!r-i69
Baaimana Denan
.!r 9 ::
Hi% 'llo( Steel
; 6!r -i 622,,6 !, 62 !r, 2 -i
;6!r-i-b62<
,6!, 62!r, 2-i, ada
paduan -b
Pad#an Fator Pen&ali
Cromi#m' Cobalt' "an&anese ' *iel'Silicon
+
Al#mini#m' boron' C#pper'"olibden#m' *iobi#m'$itani#m'anadi#m
,-
Phosphor#s' S#lf#r' *ito&en' Carbon ,--
DI
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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AS!" System
ATM wr#tes stan+ar+ specifications or ar#o)s allo$s to &eet. Te ATM stan+ar+
coers chemical compositions, mechanical property limits or levels, fabrication
methods, and heat treatments. Alloys are required to satisfy these requirements .6or e'a&le7 steel lates )se+ or str)ct)ral an+ ress)re essel +es#ns are &ostl$
class##e+ accor+#n ATM stan+ar+s.
8An AS!" designation is an arbitrarily c#osen n$mber pre-fi%ed by t#e letter &A&'
Specification Steel type and condition
A3* A131 A23 A24
A440 A52
A53
A* A0
arbon steel lates7 bars an+ saesarbon an+ LA steel lates7 bars7 saes an+ r#ets or s#sarbon steel lates o low or #nter&e+#ate tens#le strentarbon-s#l#con steel lates o low or #nter&e+#ate tens#le strent or &ac#nearts an+ eneral constr)ct#onarbon steel lates7 bars an+ saes o # tens#le strentarbon steel lates7 bars7 saes an+ seet #l#n w#t 20 M"a (42 9s#!&#n#&)& $#el+ o#ntarbon steel lates or al#cat#ons re:)#r#n to)ness at at&oser#cte&erat)res;)ence+ an+ te&ere+ carbon steel latesarbon7 allo$ an+ LA steel lates7 bars an+ saes or br#+es
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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*?S
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METALURGI IIBaja Karbon, Klasifikasi Baja Karbon
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AME
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Plain arbon Steel