STSF347H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STSF347H

KS STSF347H

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This page is mainly introduced the STSF347H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STSF347H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel forgings for pressure vessels
  • Steel Garde:STSF347H
  • Type:Stainless Steels
  • Country:Korea
  • Standard:KS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 D 4115 (2001) Stainless steel forgings for pressure vessels
  • Metallographic Structure:Austenite
  • Application:Stainless steel forgings for pressure vessels

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.04  0.10
Si   1.00
Mn   2.00
P   0.040
S   0.030
Cr 17.00  20.00
Ni 9.00  13.00
Mo  
Nb 8×C%  1.00

Mechanical Properties

Tensile strength 418~507 σb/MPa
Yield Strength 122 σ 0.2 ≥/MPa
Elongation 25 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 463~012 -
HRC 30 -

Physical Properties

Thermal expansion 77-56 e-6/K
Thermal conductivity 19-19 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6798-7545 째C
Density 8732-5067 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)
STSF347H 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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