304L grade is similar to 304, with lowered Carbon (C) content. 304L is preferred for its better resistance of intergranular corrosion.

It is resistant to corrosion in natural waters and urban atmosphere. Heat resistance, forgeability and machinability are similar to 304. Weldability is excellent in 304L.

Available forms: Round Bars, Flat Bars, Hexagon Bars, Square Bars, Angles, Wires, Special Profiles, Coils, Sheets, Strips, Welded Tubes, Seamless Tubes, Profiles, Fitting

Chemical Analysis

Chemical Compositions

Element % Present
Carbon (C) 0.03
Chromium (Cr) 17.50 – 19.50
Manganese (Mn) 2.00
Silicon (Si) 1.00
Phosphorous (P) 0.045
Sulphur (S) 0.015b)
Nickel (Ni) 8.00 – 10.50
Nitrogen (N) 0.10
Iron (Fe) Balance

Mechanical properties

Property Value
Proof Stress 200 Min MPa
Tensile Strength 500 – 700 MPa
Elongation 45 Min%

Physical Properties

Property Value
Density 8.00 Kg/m3
Melting Point 1450 °C
Thermal Expansion 17.2 x 10-6 /K
Modulus of Elasticity 193 GPa
Thermal Conductivity 16.2W/m.K
Electrical Resistivity 0.072 x 10-6 Ω .m

Usage areas

  • Food processing equipment, particularly in beer brewing, milk processing, and wine making
  • Kitchen benches, sinks, troughs, equipment, and appliances
  • Architectural trim and molding
  • Automotive and aerospace structural use
  • Construction material in large buildings
  • Chemical containers, including for transport
  • Heat exchangers
  • Nuts, bolts, screws, and other fasteners in the marine environment
  • Dyeing industry
  • Woven or welded screens for mining, quarrying & water filtration