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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
8 q; D% `' o1 C. F% A3 j谢谢你的热心帮助!7 x: e w ?, B& a# 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;
7 w% b3 K. B& h, W* M9 O+ X7 c4 _关于机械性能,A370 ...
9 P1 N* p0 k; S1 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
: [ ]$ w5 D5 x0 } Y: ~7 oApplications 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.. P% s( c; o0 u# h- _& P4 B
Density 7.87 g/cc ; y3 s- o# @2 r* `& j1 W
Hardness, Brinell 192 192
/ [4 ^7 r: n$ q1 F3 H, h# w2 UHardness, Knoop 214 214 Converted from Brinell hardness.
, |+ _/ b( T; ~Hardness, Rockwell B 91 91 Converted from Brinell hardness. - S3 c4 ~3 ]- P9 a; P& C! c* k1 D% O
Hardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
" W9 n; Q# G K, S) lHardness, Vickers 201 201 Converted from Brinell hardness.
0 R% q1 Z/ r! z! @Tensile Strength, Ultimate 650 MPa 94300 psi
6 C W; E. g5 [' p$ nTensile Strength, Yield 425 MPa 61600 psi
( Z, N! u& |" }8 y3 }Elongation at Break 24 % 24 % X) t/ U- ?$ X% V( x
Reduction of Area 57.7 % 57.7 % % p, B2 ]. y( K) o7 z% {" V1 `9 T
Modulus of Elasticity 200 GPa 29000 ksi Typical for steel( ~; p; f7 K* y+ u, Z
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
; K5 r4 G4 ?1 J/ j4 f0 d; CPoisson's Ratio 0.29 0.29 Typical For Steel
8 b9 m2 E( c; H3 O) DIzod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled, c8 P! \. r2 U" k
Shear Modulus 80 GPa 11600 ksi Typical for steel. |
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