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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.gif8 D: }/ F. v. I) w5 s- _
谢谢你的热心帮助!' s6 Q& a8 ~$ ?* \" P4 `9 J: y
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;8 v5 `* q! F$ J
关于机械性能,A370 ...
$ S) k/ o9 v O* G( ]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/ J% Z4 F. k! K5 @( s t3 @
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.+ f& B) Y. Q: w; ~' w
Density 7.87 g/cc
- y3 p. P+ Z: \1 ?; R$ vHardness, Brinell 192 192
$ w0 P0 G- i- R, J5 j- ]! \Hardness, Knoop 214 214 Converted from Brinell hardness. " q/ B: J: j2 P
Hardness, Rockwell B 91 91 Converted from Brinell hardness.
( C- X' Z1 a! L+ XHardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only./ m" b1 w+ X& y; M6 o# Z$ }' f) o
Hardness, Vickers 201 201 Converted from Brinell hardness.
( t& t( ~& W" m" `) ETensile Strength, Ultimate 650 MPa 94300 psi ( }0 E. y# N+ v& ^. Y
Tensile Strength, Yield 425 MPa 61600 psi
N) Z8 R" u" K. e) O/ LElongation at Break 24 % 24 %
; R/ s* d7 A# k) n) l9 AReduction of Area 57.7 % 57.7 %
0 V, J R! T! P8 O9 x0 iModulus of Elasticity 200 GPa 29000 ksi Typical for steel0 u8 x. w3 _5 C/ }3 j- w
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
2 e) b( T9 E( _/ S* G5 CPoisson's Ratio 0.29 0.29 Typical For Steel
( H w. f3 M5 A* rIzod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled
i m7 S9 r9 e, z- \Shear Modulus 80 GPa 11600 ksi Typical for steel. |
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