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China 唐山国丰Q/TGF 65Mn 优质碳素结构钢热轧厚钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 65Mn / 65Mn
Category Grade Standard Region/Area Standard Content
Metals 65Mn Q/TGF 307 China 优质碳素结构钢热轧厚钢带

Chemical composition(mass fraction)(wt.%) of the 65Mn

Element Min Max Similar
C 0.6200 0.7000 -
Si 0.1700 0.3700 -
Mn 0.9000 1.2000 -
P - 0.0350 -
S - 0.0350 -
Cr - 0.2000 -
Ni - 0.3000 -
Cu - 0.2500 -

Mechanical Properties of steel grade 65Mn

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)
312 (≥) 548 (≥) 12 43 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 65Mn

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
12 - -     0.24 -  
688 414 - 14.3 242   -  
296 - 23 32.2   311 132

Heat Treatment of steel grade 65Mn

Heat treated : 1295°C - 1514°C

Technological Curves of steel grade 65Mn

Cross Reference Table (Equivalent Grade) of 65Mn

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