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

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China

321S51 510


321S51 510 material is B.S. BS 1502 Specification for steels for fired and unfired pressure vessels: sections and bars B.S. BS 1503 Specification for steel forgings for pressure purposes Specification for steel forgings for pressure purposes.

Chemical composition of 321S51 510, 321S51 510 mechanical properties, 321S51 510 datasheet, 321S51 510 equivalent grade, Heat treatment and temperature process of 321S51 510.


321S51 510 property sheet

321S51 510 Spec.

B.S. BS 1502
Specification for steels for fired and unfired pressure vessels: sections and bars
B.S. BS 1503
Specification for steel forgings for pressure purposes

Chemical Composition of 321S51 510

C: 0.04 0.10
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: 9.00 12.00
Ti: Max 0.80

Mechanical Properties of 321S51 510

Rp0.2 (MPa) 284 (≥)
Rm (MPa) 151 (≥)
AKV (J) 31
A (%) 33
Z (%) 22
Hardness HBW 312

321S51 510 shape and dimensions

321S51 510 Round bar: 1mm-800mm
321S51 510 Square bar: 10mm * 10mm-600mm *600mm
321S51 510 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
321S51 510 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
321S51 510 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
321S51 510 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes