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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ASME 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 plate, corrosion resistant, austenitic (UNS S30400, S30403, S31600, S34700, and S34800)

  • Steel Garde:304
  • Type:Stainless Steels
  • Country:USA
  • Standard:ASME
  • Standard Number:
    ITEM Standard Number Descriptions
    1 MIL-DTL-23196E Steel plate, corrosion resistant, austenitic (UNS S30400, S30403, S31600, S34700, and S34800)
    2 MIL-P-1144D Pipe, corrosion-resistant, stainless steel, seamless or welded
    3 MIL-S-23196 Steel plate, corrosion resistant, austenitic (UNS S30400, S30403, S31600, S34700, and S34800)
    4 MIL-T-8504B Tubing, steel, corrosion-resistant (304), aerospace vehicle hydraulic systems, annealed, seamless and welded
    5 MIL-T-8506A Tubing, steel, corrosion-resistant, (304) annealed, seamless and welded
  • Metallographic Structure:Austenite
  • Application:Steel plate, corrosion resistant, austenitic (UNS S30400, S30403, S31600, S34700, and S34800)

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
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 681~948 σb/MPa
Yield Strength 123 σ 0.2 ≥/MPa
Elongation 18 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 903~185 -
HRC 30 -

Physical Properties

Thermal expansion 61-99 e-6/K
Thermal conductivity 63-63 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3756-3042 째C
Density 0549-6111 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 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