STS304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS304

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KS STS304

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This page is mainly introduced the STS304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS304,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Special alloys steel for chemical plant

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 18.00  20.00
Ni 8.00  10.50
Mo  
N  

Mechanical Properties

Tensile strength 713~956 σb/MPa
Yield Strength 972 σ 0.2 ≥/MPa
Elongation 16 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 905~269 -
HRC 30 -

Physical Properties

Thermal expansion 99-75 e-6/K
Thermal conductivity 88-15 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8090-7939 째C
Density 5391-1087 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)
STS304 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