About Alloy
Type 304 is a variation of the basic 18-8 grade, Type 304, with a higher chromium and lower carbon content. Lower carbon minimizes chromium carbide precipitation due to welding and its susceptibility to intergranular corrosion. In many instances, it can be used in the ”as-welded“ condition, while Type 304 must be annealed in order to retain adequate corrosion resistance.
Product Form
Sheet / strip 125KSi: AMS 5501
Sheet /strip (ann): AMS 5501
Sheet / strip (ann): AMS 5513
Seamless tube: AMS 5560
1/4H Seamless/welded: AMS 5560
1/8H Seamless/welded: AMS 5564
Welded tube: AMS 5565
Seamless/welded tube: AMS 5566, AMS 5567, AMS 5569
Welded tube: AMS 5575
(304) Bar / Forgings: AMS 5639
(304L) Bar / Forgings:AMS 5647
Chemical Composition
| Weight% | C | Si | Mn | P + S | Cr | Ni | Fe | Mo | Cu |
| AMS 5511 304L | 0.03 max | 1.00 max | 2.0 max | 0.040 P 0.03 S | 18.0 - 20.0 | 8.0 - 11.00 | Bal | 0.75 max | 0.75 max |
| AMS 5513 304 | 0.08 max | 1.00 max | 2.0 max | 0.040 P 0.03 S | 18.0 - 20.0 | 8.0 - 10.5 | Bal | 0.75 max | 0.75 max |
Property
| Specification | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation (%) | Reduction of Area | Hardness HB |
| Sheet (Annealed) AMS 5511 | 100 max | - | 40 | - | - |
| Sheet (Annealed) AMS 5513 | 75 min | 30 | 40 | - | 202 |
| Bar (Sol Treated) 304 - AMS 5639 | 75 | 30 | 40 | 50 | |
| Bar (Sol Treated) 304L - AMS 5647 | - | - | - | - | 140-241 |
Application
1. Food and Beverage Industry
●Processing Equipment: Tanks, conveyors, mixers
●Storage Containers: For dairy, wine, and other consumables
●Kitchen Appliances: Sinks, countertops, utensils
●Benefits: Corrosion resistance, hygienic properties, easy to clean
2. Chemical and Pharmaceutical Industry
●Reactors and Vessels: Chemical processing and pharmaceutical manufacturing
●Piping Systems: Transporting chemicals and pharmaceuticals
●Benefits: High resistance to oxidation and corrosion, durable in aggressive environments
3. Construction and Architecture
●Building Facades: Panels and cladding
●Structural Components: Supports, beams, columns
●Handrails and Balustrades: Safety and design elements
●Benefits: Excellent weather resistance, modern appearance, structural strength
4. Automotive Industry
●Exhaust Systems: Mufflers, tailpipes
●Trim and Moldings: Aesthetic and functional parts
●Benefits: Corrosion resistance, durability under high temperatures
5. Marine Industry
●Marine Equipment: Fasteners, fittings
●Boat Building: Parts and structures for boats and ships
●Benefits: Good resistance to seawater corrosion, suitable for marine environments
6. Medical Devices
●Surgical Instruments: Scalpels, forceps
●Implants and Protheses: Biocompatible components
●Benefits: Biocompatibility, ease of sterilization, corrosion resistance
7. Aerospace Industry
●Aircraft Components: Parts requiring strength and high-temperature resistance
●Benefits: Good mechanical properties, corrosion resistance in demanding conditions
8. Household Items
●Kitchen Utensils: Cookware, cutlery
●Bathroom Fixtures: Faucets, showerheads
●Benefits: Durability, ease of cleaning, resistance to stains and corrosion
9. Industrial Equipment
●Machinery Parts: Durable components
●Pipes and Tubes: Used in various industrial processes
●Benefits: High strength, resistance to wear, and environmental factors
304 stainless steel is a versatile material known for its strength, corrosion resistance, and wide range of applications, making it a preferred choice across many industries and everyday uses.
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