S21904 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S21904

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AISI S21904

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This page is mainly introduced the S21904 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S21904,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Austenitic Chromium Manganese Nickel Stainless Steel, Low carbon

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.04
Mn 8.00  10.00
Si   1.00
P   0.06
S   0.03
Cr 19.00  21.50
Ni 5.50  7.50
Mo  
N 0.15  0.40

Mechanical Properties

Tensile strength 321~097 σb/MPa
Yield Strength 723 σ 0.2 ≥/MPa
Elongation 37 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 254~080 -
HRC 30 -

Physical Properties

Thermal expansion 52-76 e-6/K
Thermal conductivity 88-83 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5530-5926 째C
Density 0823-5985 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)
S21904 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