STR38 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR38

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KS STR38

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This page is mainly introduced the STR38 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR38,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Heat - resisting steel bars

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.25  0.35
Si   1.00
Mn   1.20
P 0.18  0.25
S   0.030
Cr 19.00  21.00
Ni 10.00  12.00
Mo 1.80  2.50
N  
B 0.001  0.010

Mechanical Properties

Tensile strength 229~116 σb/MPa
Yield Strength 876 σ 0.2 ≥/MPa
Elongation 14 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 553~367 -
HRC 30 -

Physical Properties

Thermal expansion 57-24 e-6/K
Thermal conductivity 93-29 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9523-2990 째C
Density 0291-0957 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
STR38 Stainless Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

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