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发表于 2013-4-7 14:20:33
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来自: 中国广东广州
hyc1754 发表于 2013-4-7 13:51 static/image/common/back.gif
q) D% k5 t* p! f谢谢你的热心帮助!5 {( R9 \ |' } g0 u
标准里写的是1144而不是C-1144,我不确定他们是不是完全一样;1 B+ {- {! Q o- Z* {
关于机械性能,A370 ... # P) E' I( p8 U [& O- ]
前面C为 cold roll steel 这种钢除了切削性能很好外,力学性能要求不是很高) Q: l, W9 y7 {" S6 z9 O P
Applications include cold drawn or finished bar, cold punched nuts, split rivets, machine screws, and wood screws. Post oil quenched hardness: 30 HRC surface, 27 HRC half-radius, 22 HRC center.- O) {* A. N8 Z
Density 7.87 g/cc / ~' c! Q/ w* g; |
Hardness, Brinell 192 192
2 H! A+ e& P/ o5 iHardness, Knoop 214 214 Converted from Brinell hardness.
# b/ X6 v3 ^$ f. Q8 HHardness, Rockwell B 91 91 Converted from Brinell hardness. , I0 i" `4 o! s. \
Hardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
+ D# A S. w0 A8 s2 vHardness, Vickers 201 201 Converted from Brinell hardness.
) j. j7 [) B& s1 v% Z: _% ITensile Strength, Ultimate 650 MPa 94300 psi 4 J. F/ ?( L1 P' r; O4 ^
Tensile Strength, Yield 425 MPa 61600 psi
6 x+ x+ M3 T1 f- iElongation at Break 24 % 24 % , i/ Q% J w# J/ s& o
Reduction of Area 57.7 % 57.7 %
; T( }" h0 S/ X- I5 YModulus of Elasticity 200 GPa 29000 ksi Typical for steel. Q7 I% f- b- {( `% W" R" t
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
6 \. R# c, v6 ?; P% @% \Poisson's Ratio 0.29 0.29 Typical For Steel
, D5 b9 U# N# v' P3 {Izod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled, B( n' q% a6 H5 @
Shear Modulus 80 GPa 11600 ksi Typical for steel. |
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