S31040 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S31040

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AISI S31040

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This page is mainly introduced the S31040 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S31040,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Austenitic Chromium Nickel Heat Resisting Steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Mn   2.00
Si   1.50
P   0.045
S   0.03
Cr 24.00  26.00
Ni 19.00  22.00
Mo  
Nb+Ta 10×C%  1.10

Mechanical Properties

Tensile strength 982~480 σb/MPa
Yield Strength 850 σ 0.2 ≥/MPa
Elongation 46 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 490~852 -
HRC 30 -

Physical Properties

Thermal expansion 50-90 e-6/K
Thermal conductivity 71-51 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3729-1690 째C
Density 3711-6517 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)
S31040 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