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B-Cu38AgZnMnNi-680/630

EU EN B-Cu38AgZnMnNi-680/630 Copper and copper alloys - Compendium of compositions and products and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals B-Cu38AgZnMnNi-680/630 CEN/TS 13388 EU Copper and copper alloys - Compendium of compositions and products

Chemical composition(mass fraction)(wt.%) of the B-Cu38AgZnMnNi-680/630

Element Min Max Similar
Mn 8.5000 10.5000 -
P - 0.0080 -
Si - 0.0500 -
Ni 5.0000 6.0000 -
Cu 37.0000 39.0000 -
Cd - 0.0300 -
Al - 0.0010 -
Zn 18.0000 22.0000 -
Ag 26.0000 28.0000 -
Bi - 0.0300 -
Pb - 0.0250 -
Others total - 0.3000 -

Mechanical Properties of steel grade B-Cu38AgZnMnNi-680/630

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)
781 (≥) 116 (≥) 33 33 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade B-Cu38AgZnMnNi-680/630

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
41 - -     0.41 -  
538 222 - 32.3 223   -  
787 - 14 43.2   331 431

Heat Treatment of steel grade B-Cu38AgZnMnNi-680/630

Heat treated : 1678°C - 1624°C

Technological Curves of steel grade B-Cu38AgZnMnNi-680/630

Cross Reference Table (Equivalent Grade) of B-Cu38AgZnMnNi-680/630

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