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KS STS631J1 Details

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STS631J1 Application:Stainless steel wire rods

Category Type Grade Designations
Grades Stainless Steels STS631J1 Korea - KS , D 3535 (2002) - Stainless steel wires for springs
D 3702 (2008) - Stainless steel wire rods

Chemical composition(wt.%) of STS631J1 grade: 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
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)
167 (≥) 626 (≥) 14 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

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
387 (≥) 814 (≥) 11 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
638 421 253

STS631J1 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
STS631J1 KS Korea
Stainless steel wire rods

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