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B740 C72650

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America ASTM B740C72650 铜镍锡旋节合金带材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B740C72650 / B740 C72650
Category Grade Standard Region/Area Standard Content
Metals B740 C72650 ASTM B740 America 铜镍锡旋节合金带材

Chemical composition(mass fraction)(wt.%) of the B740 C72650

Element Min Max Similar
Zn - 0.1000 -
Sn 4.5000 5.5000 -
Pb - 0.0100 -
Ni 7.0000 8.0000 -
Mn - 0.1000 -
Fe - 0.1000 -
Cu - - -

Mechanical Properties of steel grade B740 C72650

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)
723 (≥) 667 (≥) 32 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade B740 C72650

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
33 - -     0.22 -  
261 551 - 22.3 314   -  
267 - 42 33.2   143 131

Heat Treatment of steel grade B740 C72650

Heat treated : 1693°C - 1363°C

Technological Curves of steel grade B740 C72650

Cross Reference Table (Equivalent Grade) of B740 C72650

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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