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SA-268 25-4-4


SA-268 25-4-4 material is AMS SA-268/SA-268M Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service.

Chemical composition of SA-268 25-4-4, SA-268 25-4-4 mechanical properties, SA-268 25-4-4 datasheet, SA-268 25-4-4 equivalent grade, Heat treatment and temperature process of SA-268 25-4-4.


SA-268 25-4-4 property sheet

SA-268 25-4-4 Spec.

AMS SA-268/SA-268M
Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical Composition of SA-268 25-4-4

C: Max 0.025
Si: Max 0.75
Mn: Max 1.00
P: Max 0.04
S: Max 0.04
Ni: 3.35 4.50
Cr: 24.50 26.00
Al: Max Min
Cu: Max 0.50
Ti: Max Min
Fe: Max Min
N: Max 0.035
Mo: 3.50 4.50

Mechanical Properties of SA-268 25-4-4

Rp0.2 (MPa) 425 (≥)
Rm (MPa) 875 (≥)
AKV (J) 33
A (%) 23
Z (%) 12
Hardness HBW 443

SA-268 25-4-4 shape and dimensions

SA-268 25-4-4 Round bar: 1mm-800mm
SA-268 25-4-4 Square bar: 10mm * 10mm-600mm *600mm
SA-268 25-4-4 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
SA-268 25-4-4 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
SA-268 25-4-4 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
SA-268 25-4-4 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes