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A 988 S31254

Favorite Datasheet
A 959 S31254 S31254
#254SMO #S31254

Description

USA SAE A 988/A 988M (2011), A 988 S31254 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 S31254
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 988 S31254 Austenite 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 S31254

C Mn Si P S Cr Ni Mo Cu N
≤0.02 ≤1.00 ≤0.80 ≤0.03 ≤0.01 19.50 -20.50 17.50 -18.50 6.00 -6.50 0.50 -1.00 0.18 -0.22

Mechanical Properties of steel grade A 988 S31254

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)
999 (≥) 458 (≥) 34 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade A 988 S31254

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
44 - -     0.33 -  
223 818 - 13.3 434   -  
144 - 43 11.2   143 214

Heat Treatment of steel grade A 988 S31254

Heat treated : 1987°C - 1541°C

Technological Curves of steel grade A 988 S31254

Cross Reference Table (Equivalent Grade) of A 988 S31254

Grade Standard Country Application
254SMO
254SMO(S31254)
S31254
S31254
S31254
S31254
S31254
S31254
S31254
S31254

Relevant standard of A 988 S31254

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
A 959 S31254 S31254
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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