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A 240 Type XM-21

Favorite Datasheet
S30430 A 276 XM-21
#XM-21 #S30452

Description

USA SAE A 240/A 240M (2012) , A 240 Type XM-21 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 Type XM-21
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 240 Type XM-21 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 Type XM-21

C Si Mn P S Cr Ni N
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.03 18.0 -20.0 8.00 -10.5 0.16 -0.30

Mechanical Properties of steel grade A 240 Type XM-21

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)
616 (≥) 239 (≥) 44 23 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade A 240 Type XM-21

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
23 - -     0.13 -  
173 619 - 43.3 224   -  
366 - 42 31.2   112 213

Heat Treatment of steel grade A 240 Type XM-21

Heat treated : 1838°C - 1562°C

Technological Curves of steel grade A 240 Type XM-21

Cross Reference Table (Equivalent Grade) of A 240 Type XM-21

Grade Standard Country Application
XM-21
XM-21J
S30452
S30452
S30452
304HN(S30452)

Relevant standard of A 240 Type XM-21

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
S30430 A 276 XM-21
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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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