SA-479 Type 304N chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-479 Type 304N

AMS SA-479 Type 304N

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This page is mainly introduced the SA-479 Type 304N chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-479 Type 304N,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
  • Steel Garde:SA-479 Type 304N
  • Type:Stainless Steels
  • Country:USA
  • Standard:AMS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SA-479/SA-479M Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
  • Metallographic Structure:Austenite
  • Application:Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Si   0.75
Mn   2.00
P   0.045
S   0.03
Cr 18.0  20.0
Ni 8.00  10.5
N 0.10  0.16

Mechanical Properties

Tensile strength 582~144 σb/MPa
Yield Strength 616 σ 0.2 ≥/MPa
Elongation 54 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 150~303 -
HRC 30 -

Physical Properties

Thermal expansion 77-75 e-6/K
Thermal conductivity 27-40 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7157-0941 째C
Density 8823-2296 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)
SA-479 Type 304N 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