Table 1.3and Table 1.4 list the UNS numbe rs corresp onding to SAE-A ISI numb ers for various standard carbon and alloy steels, respectively, with composition ranges.. All material speci
Trang 2compo sition req uirements, such as boro n, lead, or nons tandard ch emical ran ges Table 1.3
and Table 1.4 list the UNS numbe rs corresp onding to SAE-A ISI numb ers for various standard carbon and alloy steels, respectively, with composition ranges.
A specification is typically an acronym or abbreviation for a standards organization plus a specific written statement of both technical and commercial requirements that a product must satisfy It is a document that restrains or controls procurement and is issued by that standards organization All material specifications contain general and specific information [57] Any reasonably adequate specification will furnish the information about the items stated below [6,8] The scope of the document may include product classification, required size range, condition, and any comments on product processing considered helpful to either the supplier
or the user An informative title and a statement of the required form may be employed instead of a scope item.
Chemical composition may be described, or it may be denoted by a well-known tion based on chemical composition The SAE-AISI designations are normally used.
designa-A quality statement covering any appropriate quality descriptor and whatever additional prerequisites might be necessary It may also include the type of steel and the steelmaking processes allowed.
Quantitative requirements recognize permissible composition ranges and all physical and mechanical properties necessary to characterize the material Testing methods employed to check these properties should also be included or reference made to standard test methods This section should only address those properties that are vital for the intended application Additional requirements can cover surface preparation, special tolerances, and edge finish
on flat-rolled products as well as special packaging, identification, and loading instructions Engineering societies, trade associations, and institutes whose members make, specify, or purchase steel products publish standard specifications; many of them are well recognized and highly respected Some of the notable specification-writing groups or standard organiza- tions in the United States are listed below It is clear from these names that a particular specification-writing group is limited to its own specialized field.
The most widely used standard specifications for steel in the United States are those published
by ASTM, many of which are complete specifications, usually adequate for procurement
Trang 3High carbon–chromium ball androller bearing steel
Alloy steel bars havinghardenability requirementsHot-rolled alloy steel barsCold-finished alloy steel barsHot-rolled or cold-finishedquenched and tempered alloysteel bars
Hot-rolled and cold-rolled alloysteel sheet and strip
Regular quality hot-rolled andcold-rolled alloy steel sheet andstrip
Drawing quality hot-rolled andcold-rolled alloy steel sheet andstrip
hexagon-head boltsCold-heading quality alloy steelwire for hexagon-head boltsCold-heading quality carbon steelwire for tapping or sheet metalscrews
Cold-heading quality carbon steelwire for wood screws
Merchant quality hot-rolledcarbon steel barsSpecial quality hot-rolled carbonsteel bars
Untempered cold-rolledhigh-carbon steel stripCarbon and alloy steel bars forsprings
Carbon and alloy steel blooms,billets, and slabs for forgingHigh-carbon spring steel wire forheat-treated componentsAlloy steel wire rods and coarseround wire
Carbon steel plates for forging andsimilar applications
Structural quality alloy steel platesStructural quality carbon steelplates
Source: From Anon., Carbon and alloy steels, SAE J411, 1993 SAE Handbook, Vol 1, Materials Society of Automotive Engineers, Warrendale, PA, pp 2.01–2.04
Trang 45100H Bars, screw stock, free machining, cold drawn G12120 1212
5020C Bars, forgings, and tubing, 1.5Mn 0.25Pb
(0.32–0.39C), free cutting
5022L Bars, forgings, and tubing, 0.14–0.20C, free cutting G11170 1117
5024F Bars, forgings, and tubing, 1.5Mn (0.32–0.39C), free
cutting
5027C Wire, welding, 1.05Cr 0.55Ni 1.0Mo 0.07V
(0.26–0.32C), vacuum melted,
environment-controlled packaging
5028B Wire, welding, 1.05Cr 0.55Ni 1.0Mo 0.07V
(0.34–0.40C), vacuum melted,
environment-controlled packaging
5029B Wire, welding, 0.78Cr l.8Ni 0.35Mo 0.20V
(0.33–0.38C), vacuum melted,
environment-controlled packaging
K23577
5031C Welding electrodes, covered, steel, 0.07–0.15C W06013 S6013 FED-QQ-E-450,
Type 6013
Type 1,Grade B5040J Sheet and strip, 0.15 carbon maximum, deep drawing
5045F Sheet and strip, 0.25 carbon maximum, hard temper G10200 1020
5047D Sheet and strip, 0.08–0.13C, Al killed, deep-forming
grade
5050J Tubing, seamless, 0.15 carbon maximum, annealed G10100 1010
5053G Tubing, welded, 0.13 carbon maximum, annealed G10100 1010
5062E Bars, forgings, tubing, sheet, strip, and plate, low
carbon
K02508
5075E Tubing, seamless, 0.22–0.28C, cold drawn and stress
Trang 56250H Bars, forgings, and tubing, 1.5Cr
3.5Ni (0.07–0.13C)
Composition I6255A Bars, forgings, and tubing, 1.1Si
1.45Cr 1.0Mo 0.08A1 (0.16–
0.22C), premium air quality,double vacuum melted
6256A Bars, forgings, and tubing, 1.0Cr
3.0Ni 4.5Mo 0.08A1 0.38V(0.10–0.16C), premium airquality, double vacuum melted
6257 Bars, forgings, and tubing, 1.6Si
0.82Cr 1.8Ni 0.40Mo 0.08V(0.40–0.44C), consumableElectrode vacuum remelted,normalized and tempered6260L Bars, forgings, and tubing,
carburizing grade, 1.2Cr 3.2Ni0.12Mo (0.07–0.13C)
6263H Bars, forgings, and tubing,
carburizing grade, 1.2Cr 3.2Ni0.12Mo (0.11–0.17C)
6264G Bars, forgings, and tubing,
carburizing grade, 3.2Ni 1.2Cr0.12Mo (0.14–0.20C)
6265H Bars, forgings, and tubing, 1.2Cr
3.25Ni (0.07–0.13C), vacuumconsumable electrode remelted
6266G Bars, forgings, and tubing, 0.50Cr
1.82Ni 0.25Mo 0.003B 0.06V(0.08–0.13C)
6267D Bars, forgings, and tubing, 1.2Cr
3.25Ni 0.12Mo (0.07–0.13C),electroslag remelted or vacuumremelted, consumableelectrode
Continued
Trang 66277D Bars, forgings, and tubing, 0.50Cr
0.55Ni 0.20Mo (0.18–0.23C),vacuum arc or electroslagremelted
6278A Bars, forgings, and tubing, 4.1Cr
3.4Ni 4.2Mo 1.2V (0.11–0.15C),premium aircraft quality forbearing applications, doublevacuum melted
6280H Bars, forgings, and rings, 0.50Cr
6290F Bars and forgings, carburizing
grade, 1.8Ni 0.25Mo(0.11–0.17C)
Composition46156292F Bars and forgings, carburizing
grade, 1.8Ni 0.25Mo(0.14–0.20C)
Composition46176294F Bars and forgings, carburizing
grade, 1.8Ni 0.25Mo(0.17–0.22C)
6302E Bars, forgings, and tubing, low
alloy, heat resistant, 0.65Si1.25Cr 0.50Mo 0.25V(0.28–0.33C)
6303E Bars and forgings, low alloy, heat
resistant, 0.65Si 1.25Cr 0.50Mo0.85V (0.25–0.30C)
6304G Bars, forgings, and tubing, low
alloy, heat resistant, 0.95Cr0.55Mo 0.30V (0.40–0.50C)
MAM
6304 Bars, forgings, and tubing, low
alloy, heat resistant, 0.95Cr0.55Mo 0.30V (0.40–0.50C)
6305B Bars, forgings, and tubing, low
alloy, heat resistant, 0.95Cr0.55Mo 0.30V (0.40–0.50C),vacuum arc remelted
Continued
Trang 76308A Bars and forgings, 0.90Si 1.0Cr
2.0Ni 3.2Mo 2.0Cu 0.10V(0.07–0.13C), vacuum arc orelectroslag remelted
6327G Bars and forgings, 0.50Cr 0.55Ni
0.25Mo (0.38–0.43C), heattreated, 125 ksi (862 MPa) tensilestrength
Trang 86354D Sheet, strip, and plate, 0.75Si
0.62Cr 0.20Mo 0.10Zr(0.10–0.17C)
Condition N6361C Tubing, seamless round, 0.95Cr
0.20Mo (0.28–0.33C), 125 ksi(860 MPa) tensile strength
6362D Tubing, seamless, 0.95Cr 0.20Mo
(0.28–0.33C), 150 ksi (1034MPa) tensile strength
ConditionHT6365H Tubing, seamless, 0.95Cr 0.20Mo
(0.33–0.38C), normalized orstress relieved
0.20Mo (0.18–0.23C), vacuummelted, environment controlledpackaging
(0.39–0.48C), die drawn, 130 ksi(896 MPa) yield strength, freemachining
Trang 96382K Bars, forgings, and rings, 0.95Cr
0.20Mo (0.38–0.43C)
6385E Sheet, strip, and plate, low alloy,
heat resistant, 1.25Cr 0.50Mo0.65Si 0.25V (0.27–0.33C)
6386B Sheet and plate, heat treated, 90 ksi
and 100 ksi yield strength
6409 Bars, forgings, and tubing, 0.80Cr
1.8Ni 0.25Mo (0.38–0.43C),special aircraft qualitycleanliness, normalized andtempered
6411D Bars, forgings, and tubing, 0.88Cr
1.8Ni 0.42Mo 0.08V (0.28–
0.33C), consumable electroderemelted
6417D Bars, forgings, and tubing, 0.82Cr
1.8Ni 0.40Mo 1.6Si 0.08V(0.38–0.43C), consumableelectrode remelted
Continued
Trang 106418G Bars, forgings, tubing, and rings,
0.30Cr 1.8Ni 0.40Mo 1.3Mn1.5Si (0.23–0.28C)
6419C Bars, forgings, and tubing, 0.82Cr
1.8Ni 0.40Mo 0.08V 1.6Si (0.40–
0.45C), consumable electrodevacuum remelted
6421C Bars, forgings, and tubing, 0.80Cr
0.85Ni 0.20Mo 0.003B(0.35–0.40C)
6422F Bars, forgings, and tubing, 0.80Cr
0.85Ni 0.20Mo 0.003B 0.04V(0.38–0.43C)
6423D Bars, forgings, and tubing, 0.92Cr
0.75Ni 0.52Mo 0.003B 0.04V(0.40–0.46C)
6424B Bars, forgings, and tubing, 0.80Cr
1.8Ni 0.25Mo (0.49–0.55C)
6425 Bars, forgings, and tubing, 0.30Cr
1.8Ni 0.40Mo 1.4Mn 1.5Si(0.23–0.28C), consumablevacuum electrode remelted
6426D Bars, forging, and tubing, 1.0Cr
0.58Mo 0.75Si (0.80–0.90C),consumable electrode melted
6427H Bars, forgings, and tubing, 0.88Cr
1.8Ni 0.42Mo 0.08V(0.28–0.33C)
6428D Bars, forgings, and tubing, 0.80Cr
1.8Ni 0.35Mo 0.20V(0.32–0.38C)
6429D Bars, forgings, tubing, and rings,
0.78Cr 1.8Ni 0.35Mo 0.20V(0.33–0.38C), consumableelectrode vacuum melted
6430D Bars, forgings, tubing, and rings,
0.78Cr 1.8Ni 0.35Mo 0.20V0.75Mn (0.32–0.38C)
6431J Bars, forgings, and tubing, 1.05Cr
0.55Ni 1.0Mo 0.11V(0.45–0.50C), consumableelectrode vacuum melted
6432A Bars, forgings, and tubing, 1.05Cr
0.55Ni 1.0Mo 0.12V(0.43–0.49C)
6433D Sheet, strip, and plate, 0.80Cr
1.8Ni 0.35Mo 0.20V 0.75Mn(0.33–0.38C)
Continued
Trang 116434D Sheet, strip, and plate, 0.78Cr 1.8Ni
0.35Mo 0.20V (0.33–0.38C)
6435C Sheet, strip, and plate, 0.78Cr 1.8Ni
0.35Mo 0.20V (0.33–0.38C), vacuumconsumable electrode melted,annealed
6436B Sheet, strip, and plate, low alloy, heat
resistant, 0.65Si 1.25Cr 0.50Mo0.85V (0.25–0.30C), annealed
6439B Sheet, strip, and Plate, 1.05Cr 0.55Ni
1.0Mo 0.12V (0.42–0.48C),consumable electrode vacuummelted, annealed
6440J Bars, forgings, and tubing, 1.45Cr
(0.98–1.10C), for bearingapplications
6442E Bars and forgings, 0.50Cr
(0.98–1.10C), for bearingapplications
6443E Bars, forgings, and tubing, 1.0Cr
(0.98–1.10C), consumable electrodevacuum melted
6444H Bars, forgings, and tubing, 1.45Cr
(0.98–1.10C), premium aircraftquality, consumable electrodevacuum melted
6445E Bars, forgings, and tubing, 1.05Cr
1.1Mn (0.92–1.02C), consumableelectrode vacuum melted
Continued
Trang 12Type II
0.40Mo (0.23–0.28C), vacuummelted, environment controlledpackaging
6454B Sheet, strip, and plate, 1.8Ni 0.8Cr
0.25Mo (0.38–0.43C),consumable electrode melted
Type III
6457A Wire, welding, 0.95Cr 0.20Mo
(0.28–0.33C), vacuum melted,environment controlledpackaging
Type I
6458F Wire, welding, 1.25Cr 0.50Mo
0.30V 0.65Si (0.28–0.33C),vacuum melted, environmentcontrolled packaging
6459B Wire welding, 1.0Cr 1.0Mo 0.12V
(0.18–0.23C), vacuum inductionmelted
6462F Wire, welding, 0.95Cr 0.20V
(0.28–0.33C)
6463B Wire, welding, 18.5Ni 8.5Co 5.2Mo
0.72Ti 0.10A1, vacuumenvironment controlledpackaging
Trang 136465B Wire, welding, 2.0Cr 10Ni 8.0Co
1.0Mo 0.02A1 0.06V(0.10–0.14C), vacuum melted,environment controlled pakaging
6469A Wire, welding, 1.75Mn 0.80Cr 2.8Ni
0.85Mo (0.09–0.12C), vacuummelted, environment controlledpackaging
6470J Bars, forgings, and tubing, nitriding
grade, 1.6Cr 0.35Mo 1.1A1 (0.38–
0.43C)
6471D Bars, forgings, and tubing, nitriding
grade, 1.6Cr 0.35Mo 1.2A1 (0.38–
0.43C), consumable electrodevacuum melted
6475F Bars, forgings, and tubing, nitriding
grade, 1.1Cr 3.5Ni 0.25Mo 1.25A1(0.21–0.26C)
K52355
6476 Bars, forgings, and tubing, 0.50Cr
0.12Mo (0.89–1.01C), for bearingapplications
6477 Bars, forgings, and tubing, 0.80Cr
(0.90–1.03C), for bearingapplications
6485G Bars and forgings, 5.0Cr 1.3Mo 0.50V
(0.38–0.43C)
Class H-116487G Bars and forgings, 5.0Cr 1.3Mo 0.50V
(0.38–0.43C), consumable electrodevacuum melted
Trang 146490D Bars, forgings, and tubing, 4.0Cr
4.2Mo 1.0V (0.77–0.85C),premium aircraft quality forbearing applications,consumable electrode vacuummelted
6491A Bars, forgings, and tubing, 4.1Cr
4.2Mo 1.0V (0.80–0.85C),premium aircraft quality forbearing applications, Doublevacuum melted
6501A Wire, welding, maraging steel,
18Ni 8.0Co 4.9Mo 0.40Ti0.10A1, vacuum inductionmelted, environment controlledpackaging
6512C Bars, forgings, tubing, and rings,
18Ni 7.8Co 4.9Mo 0.40Ti0.10A1, consumable electrodemelted, annealed
Type III,Grade6514C Bars, forgings, tubing, and rings,
Maraging, 18.5Ni 9Co 4.9Mo0.65Ti 0.10A1, consumableelectrode melted, annealed
Type 300MIL-S-13881,Type II,Class I6518A Sheet, strip, and plate, maraging,
19Ni 3.0Mo 1.4Ti 0.10A1,double vacuum melted, solutionheat treated
6519A Bars, forgings, tubing, and rings,
maraging, 19Ni 3.0Mo 1.4Ti0.10A1, double vacuum melted,annealed
6520B Sheet, strip, and plate, maraging
250, 18Ni 7.8Co 4.9Mo 0.40Ti0.10A1, consumable electrodemelted, Solution heat treated
6521A Sheet, strip, and plate, 18.5NI
9.0Co 4.9Mo 0.65Ti 0.10A1,consumable electrode melted,solution heat treated
Grade 300
(0.13–0.17C), vacuum melted,normalized and overaged
6523C Sheet, strip, and plate, 0.75Cr
9.0Ni 4.5Co 1.0Mo 0.09V(0.17–0.23C), vacuumconsumable electrode melted,annealed
Continued
Trang 156524C Wire, welding, 1.0Cr 7.5Ni 4.5Co
1.0Mo 0.09V (0.29–0.34C),consumable electrode vacuummelted
6525A Bars, forgings, tubing, and rings,
0.75Cr 9.0Ni 4.5Co 1.0Mo 0.09V(0.17–0.23C), consumableelectrode vacuum melted
6526C Bars, forgings, tubing, and rings,
1.0Cr 7.5Ni 4.5Co 1.0Mo 0.09V(0.29–0.34C), consumableelectrode vacuum melted,annealed
6527B Bars and forgings, 2.0Cr 10Ni
14Co 1.0Mo (0.15–0.19C),vacuum melted, normalized andoveraged
1.9Mo (0.13–0.17C), vacuummelted, environment controlledpackaging
6544B Plate, maraging, 2.0Cr 10Ni 8.0Co
1.0Mo (0.10–0.14C), doublevacuum melted, heat treated
K91970
6546D Sheet, strip, and plate, 0.48Cr
0.80Ni 4.0Co 0.48Mo 0.09V(0.24–0.30C), consumableelectrode melted, annealed
Trang 161449 40F30,43F35,46F40,50F45,
A33-101 AF34CC10C10
10F10
C10CE10C11x
Continued
Trang 171.1121, Ck10
1.1122, Cq10
60F55,68F62,75F70(available in
HR, HS, CSconditions)
1449 4HR,4HS, 4CR,4CS
970 040A10(En2A,En2A/1,En2B)
970 045A10,045M10(En32A)
A33-101 AF37A35-551 XC12C12
Trang 18970 060A20
A35-552 XC18A35-566 XC18A35-553 C20A35-553 XC18SA35-554 XC18SCC20
CC21K
970 080A20 A35-552 21B3
A35-553 21B3A35-557 21B3A35-566 21B3
20 MB5A35-55320MB5A35-55620MB5A35-55720MB5A35-56620MB5
A35-566 20M5
Continued
Trang 19970 080A27(En5A)
CC28C30STKM15C
(15C)G4051 S28C
970 080M30(En5)
A35-552 XC32A35-553 XC32
970 080A35(En8A)
980 CFS6
A33-101 AF55A35-553 C35A35-553 XC38A35-554 XC38XC35XC38TSC35
C35E4C35M2
A35-552XC38H2
970 080M40(En8)
A35-55338MB5
Continued
Trang 20970 170H41 A35-556
38MB5A35-557XC38H2XC42, XC42TS
3146 Class 1Grade C
3146 Class 8
970 060A40
970 080A40(En8C)
970 080M40(En8)
C40M2
970 080A42(En8D)
A35-552XC42H1A35-553 C40CC45XC42, XC42TS
970 080A42(En8D)
970 080M46
A35-552XC42H2
C45E4C45M2
STKM17A(17A)G3445STKM17C(17C)
970 060A47
970 080A47
A35-552XC48H1A35-554 XC48XC48TS
Continued
Trang 21970 080M50(En43A)
970 080A57
A35-552XC55H1A35-552XC55H2A35-553 XC54XC55C55
DC1.0640, 64Mn3
1.1260, 66Mn4
Continued