STS631CSP Stainless Steels to D 3534 (2002)

STS631CSP - Specification & Application

  • D 3534 (2002) - Cold rolled stainless steel strip for springs

Cold rolled stainless steel strip for springs

Chemical composition(wt.%) of STS631CSP grade: to D 3534 (2002)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.09
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.030
Cr 16.00 18.00
Ni 6.50 7.75
Mo - -
N - -
Al 0.75 1.50

STS631CSP - Detail

Cold rolled stainless steel strip for springs

Mechanical properties of grade STS631CSP D 3534 (2002)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
358 (≥) 473 (≥) 12 34 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical properties of grade STS631CSP D 3534 (2002)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
284 (≥) 182 (≥) 33 21 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 132
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
229 466 527

Equivalent Products

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