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China GB FeMn78 锰铁 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: FeMn78 / FeMn78
Category Grade Standard Region/Area Standard Content
Metals FeMn78 GB/T 3795 China 锰铁

Chemical composition(mass fraction)(wt.%) of the FeMn78

Element Min Max Similar
S - 0.0300 -
P - 0.3000 -
P - 0.2000 -
Si - 2.0000 -
Si - 1.0000 -
C - 7.5000 -
Mn 75.0000 82.0000 -

Mechanical Properties of steel grade FeMn78

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)
137 (≥) 362 (≥) 43 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade FeMn78

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
23 - -     0.14 -  
526 664 - 12.3 312   -  
183 - 12 43.2   413 241

Heat Treatment of steel grade FeMn78

Heat treated : 1499°C - 1274°C

Technological Curves of steel grade FeMn78

Cross Reference Table (Equivalent Grade) of FeMn78

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