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 861~691 σb/MPa
Yield Strength 230 σ 0.2 ≥/MPa
Elongation 44 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 624~882 -
HRC 30 -

Physical Properties

Thermal expansion 75-67 e-6/K
Thermal conductivity 62-81 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8220-4340 째C
Density 3666-3031 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