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B770 C82500

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America ASTM B770C82500 通用铜铍合金砂型铸件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B770C82500 / B770 C82500
Category Grade Standard Region/Area Standard Content
Metals B770 C82500 ASTM B770 America 通用铜铍合金砂型铸件

Chemical composition(mass fraction)(wt.%) of the B770 C82500

Element Min Max Similar
Zn - 0.1000 -
Total Others - - -
Sn - 0.1000 -
Si 0.2000 0.3500 -
Pb - 0.0200 -
Ni - 0.2000 -
Fe - 0.2500 -
Cu - - -
Cr - 0.0900 -
Co 0.3500 0.7000 -
Be 1.9000 2.2500 -
Al - 0.1500 -

Mechanical Properties of steel grade B770 C82500

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)
294 (≥) 875 (≥) 21 23 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade B770 C82500

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
34 - -     0.12 -  
154 735 - 43.3 122   -  
241 - 34 41.2   114 144

Heat Treatment of steel grade B770 C82500

Heat treated : 1887°C - 1286°C

Technological Curves of steel grade B770 C82500

Cross Reference Table (Equivalent Grade) of B770 C82500

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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