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Description

Japan JIS G 4311 (2011), SUH 446 Specialsteel Heat-resisting steel bars and wire rods and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SUH 446
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SUH 446 Ferrite JIS Japan Heat-resisting steel bars and wire rods

Chemical composition(mass fraction)(wt.%) of the SUH 446

C Si Mn P S Cr Ni Mo N
≤0.20 ≤1.00 ≤1.50 ≤0.04 ≤0.03 23.00 -27.00 ≤0.60 ≤ ≥ ≤0.25

Mechanical Properties of steel grade SUH 446

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)
553 (≥) 132 (≥) 22 34 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade SUH 446

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
13 - -     0.22 -  
595 757 - 34.3 114   -  
648 - 13 34.2   312 314

Heat Treatment of steel grade SUH 446

Heat treated : 1773°C - 1949°C

Technological Curves of steel grade SUH 446

Relevant standard of SUH 446

G 4311 (2011) Heat-resisting steel bars and wire rods G-4311-(2011).pdf

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