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HFS304 S31


HFS304 S31 material is B.S. BS 3605-1 Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes.

Chemical composition of HFS304 S31, HFS304 S31 mechanical properties, HFS304 S31 datasheet, HFS304 S31 equivalent grade, Heat treatment and temperature process of HFS304 S31.


HFS304 S31 property sheet

HFS304 S31 Spec.

B.S. BS 3605-1
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes

Chemical Composition of HFS304 S31

C: Max 0.07
Si: Max 1.00
Mn: Max 2.00
P: Max 0.045
S: Max 0.025
Cr: 17.00 19.00
Mo: Max Min
Ni: 8.00 11.00

Mechanical Properties of HFS304 S31

Rp0.2 (MPa) 774 (≥)
Rm (MPa) 753 (≥)
AKV (J) 34
A (%) 24
Z (%) 32
Hardness HBW 431

HFS304 S31 shape and dimensions

HFS304 S31 Round bar: 1mm-800mm
HFS304 S31 Square bar: 10mm * 10mm-600mm *600mm
HFS304 S31 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
HFS304 S31 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
HFS304 S31 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
HFS304 S31 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes