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Description

Korea KS D 3577 (2007), STS347TB Specialsteel Stainless steel for boiler and heat exchanger tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS347TB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS347TB Austenite KS Korea Stainless steel for boiler and heat exchanger tubes

Chemical composition(mass fraction)(wt.%) of the STS347TB

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 STS347TB

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)
851 (≥) 631 (≥) 21 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade STS347TB

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
22 - -     0.11 -  
645 366 - 23.3 323   -  
541 - 22 23.2   141 242

Heat Treatment of steel grade STS347TB

Heat treated : 1756°C - 1381°C

Technological Curves of steel grade STS347TB

Cross Reference Table (Equivalent Grade) of STS347TB

Grade Standard Country Application
STS347
STS347

Relevant standard of STS347TB

D 3577 (2007) Stainless steel for boiler and heat exchanger tubes D-3577-(2007).pdf

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