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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
& m, o% R$ r0 _谢谢你的热心帮助!% A* d( X% u- w# i8 m
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;' |( ]. G1 _( [5 w- i9 O
关于机械性能,A370 ...
! B# K9 i/ u, | |' ~0 _5 x) X3 R% }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
# S- g; D* r, 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.' Q2 Z) g4 h' ?5 m8 e: y; ^# Z# W
Density 7.87 g/cc # P! _& c6 ?* o' _4 \
Hardness, Brinell 192 192 * r. h! ^# z, o$ Y
Hardness, Knoop 214 214 Converted from Brinell hardness. 6 K% l$ v8 [% H4 F+ i( p0 c
Hardness, Rockwell B 91 91 Converted from Brinell hardness. n4 z8 e& w q2 c3 e5 K4 k
Hardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.9 l1 Z& c+ j( r3 G/ \1 V) ]* U
Hardness, Vickers 201 201 Converted from Brinell hardness. 9 O5 g3 p4 f5 h0 v" C: ^0 t
Tensile Strength, Ultimate 650 MPa 94300 psi / y8 ?/ \' Z% G! l
Tensile Strength, Yield 425 MPa 61600 psi
) g# S- ?+ A. b( [- F ]Elongation at Break 24 % 24 % . @ M" Y8 l! C* A
Reduction of Area 57.7 % 57.7 %
' E& r0 \3 i( Q, IModulus of Elasticity 200 GPa 29000 ksi Typical for steel
7 }: @! w+ e+ t. g8 m% a/ h/ ^( IBulk Modulus 140 GPa 20300 ksi Typical for steel. 5 d% f6 N$ F! h$ G7 T& \
Poisson's Ratio 0.29 0.29 Typical For Steel
6 O# }- J+ u1 F! `0 e& RIzod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled4 p7 B/ u/ C2 M
Shear Modulus 80 GPa 11600 ksi Typical for steel. |
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