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A 988 S31803

Description

USA SAE A 988/A 988M (2011), A 988 S31803 Specialsteel Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 988 S31803
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 988 S31803 Duplex steel SAE USA Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

Chemical composition(mass fraction)(wt.%) of the A 988 S31803

C Mn Si P S Cr Ni Mo N
≤0.03 ≤2.00 ≤1.00 ≤0.03 ≤0.02 21.00 -23.00 4.50 -6.50 2.50 -3.50 0.08 -0.20

Mechanical Properties of steel grade A 988 S31803

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)
713 (≥) 913 (≥) 23 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade A 988 S31803

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
42 - -     0.44 -  
766 673 - 14.3 432   -  
788 - 11 42.2   223 422

Heat Treatment of steel grade A 988 S31803

Heat treated : 1788°C - 1729°C

Technological Curves of steel grade A 988 S31803

Cross Reference Table (Equivalent Grade) of A 988 S31803

Grade Standard Country Application
2205
S32205
2205(C)
S32205
2205
2205(S31803)
2205
S31803
S31803
S31803

Relevant standard of A 988 S31803

A 988/A 988M (2011) Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service A-988-A-988M-(2011).pdf

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