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STS347HTF

Description

Korea KS D 3587 (1991), STS347HTF Specialsteel Steel tubes for fired heater and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS347HTF
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS347HTF Austenite KS Korea Steel tubes for fired heater

Chemical composition(mass fraction)(wt.%) of the STS347HTF

C Si Mn P S Cr Ni Mo N Nb
≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 17.00 -19.00 9.00 -13.00 ≤ ≥ ≤ ≥ 10×C% - ≥

Mechanical Properties of steel grade STS347HTF

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
117 (≥) 877 (≥) 11 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade STS347HTF

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
43 - -     0.41 -  
247 596 - 43.3 421   -  
422 - 34 11.2   141 114

Heat Treatment of steel grade STS347HTF

Heat treated : 1751°C - 1118°C

Technological Curves of steel grade STS347HTF

Cross Reference Table (Equivalent Grade) of STS347HTF

Grade Standard Country Application
STS347
STS347

Relevant standard of STS347HTF

D 3587 (1991) Steel tubes for fired heater D-3587-(1991).pdf

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