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Description

Japan JIS G 4312 (2011), SUH 309 Specialsteel Heat-resisting steel plate, sheet and strip and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SUH 309
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SUH 309 Austenite JIS Japan Heat-resisting steel plate, sheet and strip

Chemical composition(mass fraction)(wt.%) of the SUH 309

C Si Mn P S Cr Ni Mo
≤0.20 ≤1.00 ≤2.00 ≤0.04 ≤0.03 22.00 -24.00 12.00 -15.00 ≤ ≥

Mechanical Properties of steel grade SUH 309

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)
243 (≥) 644 (≥) 32 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade SUH 309

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
11 - -     0.31 -  
619 282 - 14.3 311   -  
131 - 22 22.2   443 343

Heat Treatment of steel grade SUH 309

Heat treated : 1153°C - 1217°C

Technological Curves of steel grade SUH 309

Relevant standard of SUH 309

G 4312 (2011) Heat-resisting steel plate, sheet and strip G-4312-(2011).pdf

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