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KS STS436LTB Details

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STS436LTB Application:Stainless steel for boiler and heat exchanger tubes

Category Type Grade Microstructure Designations
Grades Stainless Steels STS436LTB Ferrite Korea - KS , D 3577 (2007) - Stainless steel for boiler and heat exchanger tubes

Chemical composition(wt.%) of STS436LTB grade: D 3577 (2007)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.025
Si - 1.00
Mn - 1.00
P - 0.040
S - 0.030
Cr 16.00 19.00
Ni - 0.60
Mo 0.75 1.50
N - 0.025
Ti,Nb,Zr 8×(C%+N%) 0.80
Stainless steel for boiler and heat exchanger tubes

Mechanical properties of grade STS436LTB 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)
993 (≥) 193 (≥) 23 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical properties of grade STS436LTB 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
151 (≥) 539 (≥) 24 11 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 411
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
537 577 175

STS436LTB - 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
STS436L KS Korea
Hot rolled stainless steel plates, sheets and strip
STS436LTB KS Korea
Stainless steel for boiler and heat exchanger tubes
STS436LTP KS Korea
Stainless lined steel pipe

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