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B888 C42520

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America ASTM B888C42520 制造电气连接器或弹簧触点时采用的铜合金带材技术规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B888C42520 / B888 C42520
Category Grade Standard Region/Area Standard Content
Metals B888 C42520 ASTM B888 America 制造电气连接器或弹簧触点时采用的铜合金带材技术规范

Chemical composition(mass fraction)(wt.%) of the B888 C42520

Element Min Max Similar
Zn - - -
Total Others - - -
Sn 1.5000 3.0000 -
Pb - 0.0500 -
P 0.0100 0.2000 -
Ni 0.0500 0.2000 -
Fe 0.0500 0.2000 -
Cu 88.0000 91.0000 -

Mechanical Properties of steel grade B888 C42520

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
861 (≥) 355 (≥) 22 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade B888 C42520

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
21 - -     0.11 -  
262 476 - 41.3 424   -  
597 - 23 14.2   143 331

Heat Treatment of steel grade B888 C42520

Heat treated : 1572°C - 1274°C

Technological Curves of steel grade B888 C42520

Cross Reference Table (Equivalent Grade) of B888 C42520

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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