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STS444TB

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STS444 STS444TP
#STS444

Description

Korea KS D 3577 (2007), STS444TB Specialsteel Stainless steel for boiler and heat exchanger tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS444TB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS444TB Ferrite KS Korea Stainless steel for boiler and heat exchanger tubes

Chemical composition(mass fraction)(wt.%) of the STS444TB

C Si Mn P S Cr Ni Mo N Ti,Nb,Zr
≤0.025 ≤1.00 ≤1.00 ≤0.040 ≤0.030 17.00 -20.00 ≤0.60 1.75 -2.50 ≤0.025 8×(C％+N％) -0.80

Mechanical Properties of steel grade STS444TB

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)
632 (≥) 275 (≥) 34 33 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade STS444TB

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
32 - -     0.31 -  
523 982 - 32.3 242   -  
366 - 22 42.2   221 312

Heat Treatment of steel grade STS444TB

Heat treated : 1844°C - 1727°C

Technological Curves of steel grade STS444TB

Relevant standard of STS444TB

D 3577 (2007) Stainless steel for boiler and heat exchanger tubes D-3577-(2007).pdf
STS444 STS444TP
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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