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Poland PN MC70 Wrought copper - zinc alloys - Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: MC70 / MC70
Category Grade Standard Region/Area Standard Content
Metals MC70 PN H87025 Poland Wrought copper - zinc alloys - Grades

Chemical composition(mass fraction)(wt.%) of the MC70

Element Min Max Similar
Mn - 0.1000 -
P - 0.0100 -
Ni - 0.1000 -
Cu 70.0000 72.5000 -
Zn - - -
Sn 0.9000 1.3000 -
Fe - 0.0700 -
As 0.0200 0.0600 -
Pb - 0.0700 -
Others Total - 0.1000 -

Mechanical Properties of steel grade MC70

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)
889 (≥) 275 (≥) 43 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade MC70

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
22 - -     0.31 -  
285 145 - 44.3 242   -  
171 - 21 44.2   123 442

Heat Treatment of steel grade MC70

Heat treated : 1631°C - 1885°C

Technological Curves of steel grade MC70

Cross Reference Table (Equivalent Grade) of MC70

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