A 493 Type 304L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 493 Type 304L

SAE A 493 Type 304L

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This page is mainly introduced the A 493 Type 304L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 493 Type 304L,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
  • Steel Garde:A 493 Type 304L
  • Type:Stainless Steels
  • Country:USA
  • Standard:SAE
  • Standard Number:
    ITEM Standard Number Descriptions
    5 A 493 (2009) Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
  • Metallographic Structure:Austenite
  • Application:Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.030
Si   1.00
Mn   2.00
P   0.045
S   0.03
Cr 17.50  19.50
Ni 8.00  12.0

Mechanical Properties

Tensile strength 202~144 σb/MPa
Yield Strength 133 σ 0.2 ≥/MPa
Elongation 70 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 388~166 -
HRC 30 -

Physical Properties

Thermal expansion 97-53 e-6/K
Thermal conductivity 70-46 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5281-9593 째C
Density 8985-0270 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)
A 493 Type 304L 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