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A 959 Type XM-21

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

Description

USA SAE A 959 (2011) , A 959 Type XM-21 Specialsteel Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 959 Type XM-21
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 959 Type XM-21 Austenite SAE USA Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Chemical composition(mass fraction)(wt.%) of the A 959 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 959 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)
676 (≥) 864 (≥) 21 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade A 959 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
21 - -     0.31 -  
737 265 - 43.3 223   -  
683 - 31 33.2   344 422

Heat Treatment of steel grade A 959 Type XM-21

Heat treated : 1661°C - 1769°C

Technological Curves of steel grade A 959 Type XM-21

Cross Reference Table (Equivalent Grade) of A 959 Type XM-21

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

Relevant standard of A 959 Type XM-21

A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels A-959--(2011)-.pdf
A 276 XM-21 SA-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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