• Subscribe
    Fill something at the
    'Theme option > Overall Elements > Top Bar > Top Bar Subscribtion' section
  • Login
contact: sales@scimetals.com

304L STAINLESS (S30403)

Component Wt. %

C Max 0.03
Cr 18 – 20
Mn Max 2
Ni 8 – 12
P Max 0.045
S Max 0.03
Si Max 1
Material Notes:
Austenitic Cr-Ni stainless steel. Better corrosion resistance than Type 302. High ductility, excellent drawing, forming, and spinning properties. Essentially non-magnetic, becomes slightly magnetic when cold worked. Low carbon content means less carbide precipitation in the heat-affected zone during welding and a lower susceptibility to intergranular corrosion. Applications include beer barrels, bellows, chemical equipment, coal hopper linings, cooling coils, cryogenic vessels, dairy equipment, evaporators, feedwater tubing, flexible metal hose, food processing equipment, hypodermic needles, nuclear vessels, oil well filter screens, refrigeration equipment, paper industry, pressure vessels, sanitary fittings, valves, shipping drums, spinning, still tubes, textile dyeing equipment, tubing.

Physical Properties Metric English Comments

Density 8 g/cc 0.289 lb/in³

Mechanical Properties

Hardness, Knoop 158 158 Converted from Rockwell B Hardness Value
Hardness, Rockwell B 82 82
Hardness, Rockwell C 15 15 10% Cold-worked
Hardness, Vickers 159 159 Converted from Rockwell B Hardness Value.
Tensile Strength, Ultimate 564 MPa 81800 psi 0% Cold-worked
Tensile Strength, Yield 210 MPa 30500 psi 0% Cold-worked
Elongation at Break 58 % 58 % In 50mm (2 in.)
Modulus of Elasticity 193 – 200 GPa 28000 – 29000 ksi
Charpy Impact 216 J 159 ft-lb

Electrical Properties

Magnetic Permeability 1.008 1.008 at RT

Thermal Properties

Specific Heat Capacity 0.5 J/g-°C 0.12 BTU/lb-°F Estimated based on a comparison with similar stainless steels.
Melting Point 1400 – 1450 °C 2550 – 2640 °F
Solidus 1400 °C 2550 °F
Liquidus 1450 °C 2640 °F
Maximum Service Temperature, Air 870 °C 1600 °F Intermittent Service
Maximum Service Temperature, Air 925 °C 1700 °F Continuous Service


Limitation of Liability and Disclaimer of Warranty: In no event will South Coast Industrial Metals or any of its affiliates be liable for any damages arising from the use of the information included in this document or that it is suitable for the ‘applications’ noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. South Coast Industrial Metals, Inc. assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.