304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304

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ASTM 304

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This page is mainly introduced the 304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤)
C   0.08
Si   1.00
Mn   2.00
P   0.045
S   0.03
Cr 18.0  20.0
Ni 8.00  10.5
N   0.10

Mechanical Properties

Tensile strength 793~864 σb/MPa
Yield Strength 652 σ 0.2 ≥/MPa
Elongation 42 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 655~734 -
HRC 30 -

Physical Properties

Thermal expansion 28-98 e-6/K
Thermal conductivity 05-17 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2904-1262 째C
Density 0606-1527 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)
304 Stainless Steel,Heat-Resistant Steel and Special Alloy Steel 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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