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KS STS630FB Details

Stainless steel blooms and billets for forgings

KS STS630FB Standard Download

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STS630FB Application:Stainless steel blooms and billets for forgings
Category Type Grade Microstructure Designations
Grades Stainless Steels STS630FB Precipitation-Hardening Korea - KS , D 3691 (2001) - Stainless steel blooms and billets for forgings
Chemical composition(mass fraction)(wt.%)
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 STS630FB
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)
479 (≥) 961 (≥) 31 22 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Physical properties of grade STS630FB
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
374 (≥) 187 (≥) 33 23 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
517 676 423
STS630FB 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
STS630 KS Korea
Stainless steel bars
STS630FB KS Korea
Stainless steel blooms and billets for forgings