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America UNS C69900 Copper manganese alloy and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C69900 / C69900
Category Grade Standard Region/Area Standard Content
Metals C69900 -- America Copper manganese alloy

Chemical composition(mass fraction)(wt.%) of the C69900

Element Min Max Similar
Zn 3.0000 5.0000 -
Pb - 0.0100 -
Other 99.5000 - -
Mn 28.0000 32.0000 -
Fe 1.0000 1.4000 -
Cu - - -
Al 0.2500 0.8000 -

Mechanical Properties of steel grade C69900

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)
498 (≥) 282 (≥) 41 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade C69900

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
42 - -     0.24 -  
652 333 - 13.3 423   -  
468 - 14 21.2   322 222

Heat Treatment of steel grade C69900

Heat treated : 1173°C - 1187°C

Technological Curves of steel grade C69900

Cross Reference Table (Equivalent Grade) of C69900

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