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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
! @7 ^0 {8 p& Y谢谢你的热心帮助!+ p* [$ m+ W$ b
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;
7 ?9 D3 v! W# q' P/ v) ^& f, r7 v关于机械性能,A370 ... ; Z7 n- H. _( J0 {: I. a
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! T4 w" l% t% ]) V1 K) N
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.1 R% p3 R( j' ]! q
Density 7.87 g/cc 7 J6 Z& S0 W# {; o3 z
Hardness, Brinell 192 192
4 ^5 U9 k! |: d. e) w. U7 y+ k! CHardness, Knoop 214 214 Converted from Brinell hardness.
$ N7 x* _: w4 M4 H8 lHardness, Rockwell B 91 91 Converted from Brinell hardness. ' J1 t0 R( z) J% G' i
Hardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
! x3 c$ y( a+ ~1 Y! ZHardness, Vickers 201 201 Converted from Brinell hardness. , o" K! q- b. Y o C
Tensile Strength, Ultimate 650 MPa 94300 psi
; d- K( p: C, M3 H1 L# K bTensile Strength, Yield 425 MPa 61600 psi
& z! _/ X- H, SElongation at Break 24 % 24 %
- F6 \ L5 V: L7 G5 N! NReduction of Area 57.7 % 57.7 % 0 j1 y! w Y, c: }+ W+ ~
Modulus of Elasticity 200 GPa 29000 ksi Typical for steel
1 m P! s8 m6 O8 f9 e3 DBulk Modulus 140 GPa 20300 ksi Typical for steel.
# X$ W; e4 Z# T" f7 }' cPoisson's Ratio 0.29 0.29 Typical For Steel y3 y2 t! I1 Y8 T
Izod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled
# ~* p. W( M7 NShear Modulus 80 GPa 11600 ksi Typical for steel. |
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