STS631J1 Stainless Steels to D 3535 (2002)

STS631J1 - Specification & Application

  • D 3535 (2002) - Stainless steel wires for springs
  • D 3702 (2008) - Stainless steel wire rods

Stainless steel wire rods

Chemical composition(wt.%) of STS631J1 grade: to D 3535 (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 7.00 8.50
Al 0.75 1.50

STS631J1 - Detail

Stainless steel wire rods

Mechanical properties of grade STS631J1 D 3535 (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)
247 (≥) 115 (≥) 33 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical properties of grade STS631J1 D 3535 (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
181 (≥) 773 (≥) 11 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
954 413 998

Equivalent Grade

Equivalent Products

We can customize the production of STS631J1 grade, contact us for the best solution.
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