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A 959 Type XM-21


A 959 Type XM-21 material is SAE A 959 (2011) Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels.

Chemical composition of A 959 Type XM-21, A 959 Type XM-21 mechanical properties, A 959 Type XM-21 datasheet, A 959 Type XM-21 equivalent grade, Heat treatment and temperature process of A 959 Type XM-21.


A 959 Type XM-21 property sheet

A 959 Type XM-21 Spec.

SAE A 959 (2011)
Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels

Chemical Composition of A 959 Type XM-21

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

Mechanical Properties of A 959 Type XM-21

Rp0.2 (MPa) 325 (≥)
Rm (MPa) 349 (≥)
AKV (J) 33
A (%) 21
Z (%) 23
Hardness HBW 142

A 959 Type XM-21 shape and dimensions

A 959 Type XM-21 Round bar: 1mm-800mm
A 959 Type XM-21 Square bar: 10mm * 10mm-600mm *600mm
A 959 Type XM-21 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
A 959 Type XM-21 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
A 959 Type XM-21 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
A 959 Type XM-21 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes