Grades | Stainless Steels | STS630

KS STS630 ( Precipitation-Hardening )

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STS630 Application:Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the STS630
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.07
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.030
Cr 15.00 17.00
Ni 3.00 5.00
Mo - -
N - -
Cu 3.00 5.00
Nb 0.15 0.45

Mechanical properties of grade STS630

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
587 (≥) 883 (≥) 24 11 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical properties of grade STS630

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
113 (≥) 787 (≥) 32 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
526 644 448 - - -

STS630 Range of products
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