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A 240 S30940

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A 554 MT 309S -Cb A 249 S30940
#309SCb

Description

USA SAE A 240/A 240M (2012), A 240 S30940 Specialsteel Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 240 S30940
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 240 S30940 Austenite SAE USA Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Chemical composition(mass fraction)(wt.%) of the A 240 S30940

C Si Mn P S Cr Ni Nb+Ta
≤0.08 ≤1.00 ≤2.00 ≤0.04 ≤0.03 22.0 -24.0 12.0 -16.0 ≤1.10

Mechanical Properties of steel grade A 240 S30940

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)
366 (≥) 775 (≥) 41 33 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical Properties of steel grade A 240 S30940

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
14 - -     0.13 -  
257 488 - 43.3 322   -  
321 - 13 14.2   143 311

Heat Treatment of steel grade A 240 S30940

Heat treated : 1821°C - 1213°C

Technological Curves of steel grade A 240 S30940

Relevant standard of A 240 S30940

A 240/A 240M (2012) Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A-240-A-240M--(2012).pdf
A 554 MT 309S -Cb A 249 S30940
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