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A 473 S21900

Description

USA SAE A 473 (2009), A 473 S21900 Specialsteel Stainless Steel Forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 473 S21900
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 473 S21900 Austenite SAE USA Stainless Steel Forgings

Chemical composition(mass fraction)(wt.%) of the A 473 S21900

C Mn Si P S Cr Ni Mo N
≤0.08 8.00 -10.00 ≤1.00 ≤0.06 ≤0.03 19.00 -21.50 5.50 -7.50 ≤ ≥ 0.15 -0.40

Mechanical Properties of steel grade A 473 S21900

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)
291 (≥) 585 (≥) 24 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade A 473 S21900

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
12 - -     0.23 -  
286 572 - 23.3 433   -  
996 - 22 21.2   412 441

Heat Treatment of steel grade A 473 S21900

Heat treated : 1844°C - 1435°C

Technological Curves of steel grade A 473 S21900

Cross Reference Table (Equivalent Grade) of A 473 S21900

Relevant standard of A 473 S21900

A 473 (2009) Stainless Steel Forgings A-473-(2009).pdf

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