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KS STSF321

STSF321


STSF321 material is KS D 4115 (2001) Stainless steel forgings for pressure vessels Stainless steel forgings for pressure vessels.

Chemical composition of STSF321, STSF321 mechanical properties, STSF321 datasheet, STSF321 equivalent grade, Heat treatment and temperature process of STSF321.


STSF321 property sheet

STSF321 Spec.

KS D 4115 (2001)
Stainless steel forgings for pressure vessels

Related Materials

STSF321
STSF321H

Chemical Composition of STSF321

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.040
S: Max 0.030
Cr: 17.00 19.00
Ni: 9.00 13.00
Mo: Max Min
Ti: Max 5×C％

Mechanical Properties of STSF321

Rp0.2 (MPa) 785 (≥)
Rm (MPa) 553 (≥)
AKV (J) 44
A (%) 34
Z (%) 41
Hardness HBW 422

STSF321 shape and dimensions

STSF321 Round bar: 1mm-800mm
STSF321 Square bar: 10mm * 10mm-600mm *600mm
STSF321 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STSF321 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STSF321 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STSF321 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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