304/304L — UNS S30400 / S30403
304 Stainless Steel
304 Stainless Steel is the most widely used austenitic stainless steel, valued for its excellent general corrosion resistance and formability. We stock 304/304L in sheet, shim, mesh, and perforated formats across a broad thickness range for gasket fabrication, shims, and industrial sealing applications.
At a Glance
Temperature Range
-200 °C to +870 °C (intermittent to 925 °C)
Thickness Range
0.05 mm to 3 mm (0.05–0.5 mm shim, 0.55–3 mm sheet)
Technical Properties
Typical values across stocked grades. Specific grade data sheets available on request.
Common Applications
- Spiral wound gasket inner and outer rings
- Flat metallic gaskets for general chemical service
- Precision shims and spacers
- Kammprofile gasket cores
- Heat exchanger gaskets
- Food and beverage processing equipment gaskets
- Water treatment plant flanges and fittings
- Mesh reinforcement for soft gasket materials
- Perforated sheet for gasket reinforcement cores
- General industrial flange gaskets
Available Grades
304 Sheet (0.55–3 mm)
Standard austenitic stainless steel sheet in 2B mill finish. We stock 0.1–3 mm thicknesses for gasket cutting, shim fabrication, and general metalworking.
304L Sheet
Low-carbon variant (0.03% C max) offering improved weldability and resistance to intergranular corrosion. Preferred for welded assemblies and corrosive environments.
304 Shim (0.05–0.5 mm)
Precision-rolled thin-gauge stainless steel for shimming, spacing, and tolerance adjustment. Available in a range of widths and supplied in sheet or coil.
304 Mesh
Woven stainless steel wire mesh in various counts. Used as reinforcement in gasket manufacture and for filtration applications.
304 Perforated Sheet
Stainless steel sheet with punched hole patterns for gasket reinforcement cores, ventilation, and screening applications.
Need 304 Stainless Steel?
We supply 304 stainless steel in sheet, roll, and custom die-cut forms. Contact our team for pricing, data sheets, or technical assistance.
Disclaimer
This resource is provided for general engineering reference only and does not constitute professional advice, specification, or guarantee of performance. Actual results depend on specific application conditions. Universal Gaskets Pty Ltd accepts no responsibility or liability for decisions made based on this information. For full terms, see our Terms & Conditions.