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STR660


STR660 material is KS D 3731 (2002) Heat - resisting steel bars KS D 3732 (2002) Heat - resisting steel plates and sheets Heat - resisting steel plates and sheets.

Chemical composition of STR660, STR660 mechanical properties, STR660 datasheet, STR660 equivalent grade, Heat treatment and temperature process of STR660.


STR660 property sheet

STR660 Spec.

KS D 3731 (2002)
Heat - resisting steel bars
KS D 3732 (2002)
Heat - resisting steel plates and sheets

Related Materials

STR660

Chemical Composition of STR660

C: Max 0.08
Si: Max 1.00
Mn: Max 2.00
P: Max 0.040
S: Max 0.030
Cr: 13.50 16.00
Ni: 24.00 27.00
Mo: 1.00 1.50
N: Max Min
Al: Max 0.35
Ti: 1.90 2.35
V: 0.10 0.50
B: 0.001 0.010

Mechanical Properties of STR660

Rp0.2 (MPa) 757 (≥)
Rm (MPa) 996 (≥)
AKV (J) 41
A (%) 13
Z (%) 41
Hardness HBW 433

STR660 shape and dimensions

STR660 Round bar: 1mm-800mm
STR660 Square bar: 10mm * 10mm-600mm *600mm
STR660 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
STR660 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
STR660 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
STR660 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes