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Description

China CNS SUH661 Specialsteel CNS standard heat resistant steel bar steel grade and chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SUH661
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SUH661 Austenite CNS China CNS standard heat resistant steel bar steel grade and chemical composition

Chemical composition(mass fraction)(wt.%) of the SUH661

C Si Mn P S Cr Ni Mo N Co W Nb
≤0.15 ≤1.00 ≤2.00 ≤0.20 ≤0.15 17.00 -19.00 8.00 -10.00 ≤0.60 ≤ ≥ 18.50 -21.00 2.00 -3.00 0.75 -1.25

Mechanical Properties of steel grade SUH661

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)
968 (≥) 917 (≥) 24 12 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade SUH661

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 - -     0.14 -  
762 464 - 23.3 234   -  
698 - 24 41.2   441 313

Heat Treatment of steel grade SUH661

Heat treated : 1442°C - 1265°C

Technological Curves of steel grade SUH661

Cross Reference Table (Equivalent Grade) of SUH661

Grade Standard Country Application
SUH661
SUH661

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