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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
* V" Q; X, d+ W) @: k7 I谢谢你的热心帮助!, B; d, ^; a5 t8 s
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;
. O( k+ s/ y/ o3 i; P关于机械性能,A370 ...
! O$ O8 [# u8 H' d# G, w0 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
+ m% g0 p7 V" J4 }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.3 O, P' l% c g
Density 7.87 g/cc 6 B: _4 h9 N+ J7 F
Hardness, Brinell 192 192 ' A" l& l5 ~7 Y% o
Hardness, Knoop 214 214 Converted from Brinell hardness.
6 B6 H, C" a4 F8 y. IHardness, Rockwell B 91 91 Converted from Brinell hardness. ! L% v( q- w: [% p# v$ e( a
Hardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.3 h0 C7 d! [- X; ^% m* T0 e
Hardness, Vickers 201 201 Converted from Brinell hardness.
+ Y( ?( N1 o6 a0 P0 y `1 LTensile Strength, Ultimate 650 MPa 94300 psi
+ _9 E6 J% x. K8 p0 j+ W: \1 e" \Tensile Strength, Yield 425 MPa 61600 psi $ c) d0 f! z u5 P! B, F E( T$ z. y Q
Elongation at Break 24 % 24 % # r& v3 x) I8 C# M
Reduction of Area 57.7 % 57.7 % : T& W: {; r+ ?, i# ?! q
Modulus of Elasticity 200 GPa 29000 ksi Typical for steel) u- [3 D7 ^' }9 g: _% f5 }
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
$ H$ b/ h) g: Y9 o% P q2 wPoisson's Ratio 0.29 0.29 Typical For Steel
, ]: c( G0 V0 _: dIzod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled
0 X$ p$ ~6 k1 d! x, OShear Modulus 80 GPa 11600 ksi Typical for steel. |
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