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Description

USA 7Mo plus Specialsteel High temperature alloys and other special alloys and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 7Mo plus
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 7Mo plus USA High temperature alloys and other special alloys

Chemical composition(mass fraction)(wt.%) of the 7Mo plus

C Si Mn Cr Ni Mo P N
≤0.03 0.60 - ≥ 2.00 - ≥ 26.0 -29.0 3.50 -5.20 1.00 -2.50 ≤0.035 0.15 -0.35

Mechanical Properties of steel grade 7Mo plus

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)
813 (≥) 291 (≥) 22 24 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade 7Mo plus

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
31 - -     0.13 -  
886 588 - 21.3 122   -  
543 - 21 14.2   113 431

Heat Treatment of steel grade 7Mo plus

Heat treated : 1781°C - 1843°C

Technological Curves of steel grade 7Mo plus


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