STS347TB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS347TB

KS STS347TB

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This page is mainly introduced the STS347TB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS347TB,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel for boiler and heat exchanger tubes
  • Steel Garde:STS347TB
  • Type:Stainless Steels
  • Country:Korea
  • Standard:KS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 D 3577 (2007) Stainless steel for boiler and heat exchanger tubes
  • Metallographic Structure:Austenite
  • Application:Stainless steel for boiler and heat exchanger tubes

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.030
Cr 17.00  19.00
Ni 9.00  13.00
Mo  
N  
Nb 10×C% 

Mechanical Properties

Tensile strength 155~417 σb/MPa
Yield Strength 283 σ 0.2 ≥/MPa
Elongation 72 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 301~093 -
HRC 30 -

Physical Properties

Thermal expansion 56-66 e-6/K
Thermal conductivity 38-51 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4883-6806 째C
Density 2273-8196 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)
STS347TB 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