304L Stainless

UNS S30403 stainless
Validate composition

Low-carbon 18-8 austenitic stainless. Low C prevents carbide precipitation during welding. Ubiquitous in construction, kitchenware, and general chemical service.

Applicable Standards

  • ASTM A276
  • EN 1.4307
  • UNS S30403

Composition Ranges (wt %)

Element Min (%) Max (%) Typical Range
Fe 66.0 74.0 ~70.0
Cr 18.0 20.0 ~19.0
Ni 8.0 12.0 ~10.0
Mn — 2.0 ~1.0
C — 0.03 ~0.01
Si — 1.0 ~0.5
Fe 66.0–74.0% Cr 18.0–20.0% Ni 8.0–12.0% Mn 0.0–2.0% C 0.0–0.03% Si 0.0–1.0%

Typical Applications

  • Welded fabrications
  • Pressure vessels
  • Architecture
  • Food equipment
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