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A 988 S21904

Favorite Datasheet
A 965 S21904 S21904
#21-6-9LC #S21904

Description

USA SAE A 988/A 988M (2011), A 988 S21904 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 S21904
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 988 S21904 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 S21904

C Mn Si P S Cr Ni Mo N
≤0.04 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 988 S21904

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)
816 (≥) 221 (≥) 11 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade A 988 S21904

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
32 - -     0.14 -  
633 954 - 12.3 413   -  
385 - 21 44.2   112 123

Heat Treatment of steel grade A 988 S21904

Heat treated : 1275°C - 1858°C

Technological Curves of steel grade A 988 S21904

Cross Reference Table (Equivalent Grade) of A 988 S21904

Grade Standard Country Application
S21904
S21904
S21904

Relevant standard of A 988 S21904

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 965 S21904 S21904
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Jiangyou Longhai Special Steel Co.,Ltd.
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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