SA-358 S31725 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-358 S31725

AMS SA-358 S31725

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This page is mainly introduced the SA-358 S31725 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-358 S31725,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service
  • Steel Garde:SA-358 S31725
  • Type:Stainless Steels
  • Country:USA
  • Standard:AMS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SA-358/SA-358M Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service
  • Metallographic Structure:Austenite
  • Application:Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.03
Mn   2.00
Si   0.75
P   0.045
S   0.03
Cr 18.00  20.00
Ni 13.50  17.50
Mo 4.00  5.00
Cu   0.75
N   0.10

Mechanical Properties

Tensile strength 812~798 σb/MPa
Yield Strength 238 σ 0.2 ≥/MPa
Elongation 44 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 150~421 -
HRC 30 -

Physical Properties

Thermal expansion 93-71 e-6/K
Thermal conductivity 25-30 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9120-6108 째C
Density 1426-9771 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)
SA-358 S31725 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