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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, b( ^3 D. y8 v. g4 R" J2 E8 K
谢谢你的热心帮助!
0 n9 G' ~# E5 i2 Y- r/ W/ V1 x! O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;
/ ]4 _8 q6 {" }* G/ e# b关于机械性能,A370 ...
+ L; d) i3 T4 N3 Y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5 r: b. \$ ^- [9 x1 H
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.
$ S2 k! S$ V$ FDensity 7.87 g/cc
2 x2 P7 V- y1 K" sHardness, Brinell 192 192
" q7 c8 B' Y! z- Y! ^Hardness, Knoop 214 214 Converted from Brinell hardness. " ^& {4 w) G, L5 t$ c- |6 U+ S
Hardness, Rockwell B 91 91 Converted from Brinell hardness.
+ d7 I- ~4 [1 l( UHardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.$ ^' D3 @; \% j ~" n, n5 z
Hardness, Vickers 201 201 Converted from Brinell hardness.
; G, n4 q; N, ^+ C" e2 DTensile Strength, Ultimate 650 MPa 94300 psi 6 T; h+ A; o! E/ Z: Y2 J, G
Tensile Strength, Yield 425 MPa 61600 psi * D2 ~. |" u7 m( n( C- p3 \7 x9 A
Elongation at Break 24 % 24 % " k3 L1 t2 o6 ~$ v+ v; m9 K
Reduction of Area 57.7 % 57.7 % 4 K9 H( j2 t; w- ?+ F: W
Modulus of Elasticity 200 GPa 29000 ksi Typical for steel4 m% n# X7 }8 @3 N$ }' {7 y* |
Bulk Modulus 140 GPa 20300 ksi Typical for steel. 1 a; f$ c! z% p8 R3 ~) D; ]9 `
Poisson's Ratio 0.29 0.29 Typical For Steel
. O& Y6 S1 n6 f/ H# c7 _Izod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled
4 E# q5 L/ N+ u4 V( f/ T. K/ i kShear Modulus 80 GPa 11600 ksi Typical for steel. |
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