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

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China

Austenitic 661


Austenitic 661 material is China Taiwan Heat-Resistant Steel.

Chemical composition of Austenitic 661, Austenitic 661 mechanical properties, Austenitic 661 datasheet, Austenitic 661 equivalent grade, Heat treatment and temperature process of Austenitic 661.


Austenitic 661 property sheet

Austenitic 661 Spec.

Related Materials

SUH 661
SUH 661
STR661
SUH661
SUH661

Chemical Composition of Austenitic 661

C 0.08-0.16
Si Max 1.00
Mn 1.00-2.00
P 0.04
S 0.03
Cr 20.0-22.5
Ni 19.0-21.0
Mo 2.50-3.50
W 2.00-3.00
Co 18.5-21.0
Nb 0.75-1.25

Mechanical Properties of Austenitic 661

Rp0.2 (MPa) 736 (≥)
Rm (MPa) 144 (≥)
AKV (J) 14
A (%) 21
Z (%) 34
Hardness HBW 434

Austenitic 661 shape and dimensions

Austenitic 661 Round bar: 1mm-800mm
Austenitic 661 Square bar: 10mm * 10mm-600mm *600mm
Austenitic 661 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
Austenitic 661 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
Austenitic 661 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
Austenitic 661 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes