High quality special steel supplier.Old rev.
  • Certified Company

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China

STSF321H


STSF321H material is KS D 4115 (2001) Stainless steel forgings for pressure vessels Stainless steel forgings for pressure vessels.

Chemical composition of STSF321H, STSF321H mechanical properties, STSF321H datasheet, STSF321H equivalent grade, Heat treatment and temperature process of STSF321H.


STSF321H property sheet

STSF321H Spec.

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

Related Materials

STSF321H

Chemical Composition of STSF321H

C: 0.04 0.10
Si: Max 1.00
Mn: Max 2.00
P: Max 0.040
S: Max 0.030
Cr: 17.00 20.00
Ni: 9.00 13.00
Mo: Max Min
Ti: 4×C% 0.60

Mechanical Properties of STSF321H

Rp0.2 (MPa) 865 (≥)
Rm (MPa) 785 (≥)
AKV (J) 44
A (%) 33
Z (%) 33
Hardness HBW 334

STSF321H shape and dimensions

STSF321H Round bar: 1mm-800mm
STSF321H Square bar: 10mm * 10mm-600mm *600mm
STSF321H Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STSF321H Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STSF321H Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STSF321H Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes