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USA UNS SAE J 405 (1998) , 309HCb Specialsteel Chemical compositions of SAE wrought stainless steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 309HCb
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 309HCb Austenite UNS USA Chemical compositions of SAE wrought stainless steels

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

C Si Mn P S Cr Ni Nb
0.04 -0.10 ≤0.75 ≤2.00 ≤0.045 ≤0.03 22.0 -24.0 12.0 -16.0 ≤1.100

Mechanical Properties of steel grade 309HCb

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)
571 (≥) 389 (≥) 42 22 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade 309HCb

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 - -     0.43 -  
457 782 - 22.3 133   -  
292 - 44 34.2   333 223

Heat Treatment of steel grade 309HCb

Heat treated : 1154°C - 1912°C

Technological Curves of steel grade 309HCb

Relevant standard of 309HCb

SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels SAE-J-405--(1998)-.pdf

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