SA-789 S32304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-789 S32304

AMS SA-789 S32304

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This page is mainly introduced the SA-789 S32304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-789 S32304,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
  • Steel Garde:SA-789 S32304
  • Type:Stainless Steels
  • Country:USA
  • Standard:AMS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SA-789/SA-789M Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service
  • Metallographic Structure:Austenitic-Ferritic(Duplex steel)
  • Application:Specification for Seamless and Welded Ferritic /Austenitic Stainless Steel Tubing for General Service

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.03
Mn   2.50
Si   1.00
P   0.04
S   0.04
Cr 21.50  24.50
Ni 3.00  5.50
Mo 0.05  0.60
N 0.05  0.20
Cu 0.05  0.60

Mechanical Properties

Tensile strength 165~993 σb/MPa
Yield Strength 500 σ 0.2 ≥/MPa
Elongation 09 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 402~053 -
HRC 30 -

Physical Properties

Thermal expansion 84-89 e-6/K
Thermal conductivity 29-78 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0105-0368 째C
Density 8653-7499 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-789 S32304 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