High quality special steel supplier.Old rev.

  • Certified Company

    DNV&ABS

  • Certified Company

    ISO 9001:2008

  • R&D Production

    In China
Get a Quote

GBT NS321

NS321


NS321 material is Nickel-base corrosion-resistant alloy.

Chemical composition of NS321, NS321 mechanical properties, NS321 datasheet, NS321 equivalent grade, Heat treatment and temperature process of NS321.


NS321 property sheet

NS321 Spec.

Related Materials

Chemical Composition of NS321

C Max 0.05
Si Max 1.00
Mn Max 1.00
P Max 0.030
S Max 0.030
Cr 1
Ni Balance
Mo 26.0-30.0
V 0.20-0.40
Co Max 2.5

Mechanical Properties of NS321

Rp0.2 (MPa) 755 (≥)
Rm (MPa) 914 (≥)
AKV (J) 33
A (%) 44
Z (%) 43
Hardness HBW 422

NS321 shape and dimensions

NS321 Round bar: 1mm-800mm
NS321 Square bar: 10mm * 10mm-600mm *600mm
NS321 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
NS321 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
NS321 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
NS321 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Our Materials

Why Our Service?

Let’s Start Work
Together

Get a Quote

Quick Contact

  • Ph: +86-1388-0247-006
  • Email: sales@longhaisteel.com

©Longhai Special Steel 2025