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KS STS310STB Details

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STS310STB Application:Stainless steel for boiler and heat exchanger tubes

Category Type Grade Microstructure Designations
Grades Stainless Steels STS310STB Austenite Korea - KS , D 3577 (2007) - Stainless steel for boiler and heat exchanger tubes

Chemical composition(wt.%) of STS310STB grade: D 3577 (2007)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.50
Mn - 2.00
P - 0.045
S - 0.030
Cr 24.00 26.00
Ni 19.00 22.00
Mo - -
N - -
Stainless steel for boiler and heat exchanger tubes

Mechanical properties of grade STS310STB D 3577 (2007)

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)
971 (≥) 584 (≥) 44 31 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical properties of grade STS310STB D 3577 (2007)

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
773 (≥) 926 (≥) 34 42 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 321
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
636 953 711

STS310STB - 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
STS310S KS Korea
Special alloys steel for chemical plant
STS310STB KS Korea
Stainless steel for boiler and heat exchanger tubes
STS310SFB KS Korea
Stainless steel blooms and billets for forgings
STS310STP KS Korea
Stainless lined steel pipe
STS310STPY KS Korea
Large diameter welded stainless steel pipes

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