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SUS 631-CSP


SUS 631-CSP material is JIS G 4313 (2011) Cold rolled stainless steel strip for springs Cold rolled stainless steel strip for springs.

Chemical composition of SUS 631-CSP, SUS 631-CSP mechanical properties, SUS 631-CSP datasheet, SUS 631-CSP equivalent grade, Heat treatment and temperature process of SUS 631-CSP.


SUS 631-CSP property sheet

SUS 631-CSP Spec.

JIS G 4313 (2011)
Cold rolled stainless steel strip for springs

Chemical Composition of SUS 631-CSP

C: Max 0.09
Si: Max 1.00
Mn: Max 1.00
P: Max 0.04
S: Max 0.03
Cr: 16.00 18.00
Ni: 6.50 7.75
Mo: Max Min
N: Max Min
Al: 0.75 1.50

Mechanical Properties of SUS 631-CSP

Rp0.2 (MPa) 643 (≥)
Rm (MPa) 168 (≥)
AKV (J) 24
A (%) 33
Z (%) 43
Hardness HBW 311

SUS 631-CSP shape and dimensions

SUS 631-CSP Round bar: 1mm-800mm
SUS 631-CSP Square bar: 10mm * 10mm-600mm *600mm
SUS 631-CSP Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
SUS 631-CSP Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
SUS 631-CSP Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
SUS 631-CSP Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes