304 Stainless Steel Sheet, Coil, and Plate - AMS 5511, 5513
304 stainless steel (AMS 5513), often referred to as 302, is the most common austenitic stainless steel grade. 304 SS contains a higher chromium and lower carbon content than other variations of type 302. It can be used in an "as welded" condition, while 302 must be annealed. AISI 304 is used in a variety of household and industrial applications, especially fasteners and food processing equipment.
Type 304 materials can be used in the welded condition as opposed to the annealed condition and still maintain resistance to corrosion and lend themselves to many types of fabrication. These grades resist corrosion and are often used in the food industry.
304 Inventory Size Ranges
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Standard Inventory Specifications
- UNS S30400
- AMS 5511
- AMS 5513
- ASTM A 240
- ASTM A 666
- ASME SA 240
Other industry standards we comply with:
- W.NR 1.4307
- PWA-LCS
- GE Aircraft Engine (GT193)
- GE Aviation S-SPEC-35 AeDMS S-400
- RR SABRe Edition 2
- DFARS Compliant
Common Trade Names
- ATI 304 (™ Allegheny Technologies)
Common Applications of 304
- Aerospace structures
- Base plates and fasteners
- Food and beverage industry
- Pressure containing applications
- Architectural structures and design features,
moldings and trims - Sanitary or cryogenic applications
- Chemical industry processing equipment
- Containers for chemicals or transport
- Burst discs
Chemical Composition
| Element | Percent by Weight | |
|---|---|---|
| C | Carbon | 0.08 |
| Mn | Manganese | 2.00 max |
| P | Phosphorus | 0.045 max |
| S | Sulfur | 0.03 max |
| Si | Silicon | 0.75 max |
| Cr | Chromium | 18.000 - 20.000 |
| Ni | Nickel | 8.000 - 12.00 |
| N | Nitrogen | 0.10 max |
| Fe | Iron | Balance |
304 Physical Properties
- Density: 0.29 lb/in³ (8.03 g/cm³)
- Modulus of Elasticity in Tension 29 x 106 psi (200 GPa)
| Temperature Range | Mean Coefficient of Thermal Expansion | ||
|---|---|---|---|
| °C | °F | mm/mm/°C | in/in/°F · 10? |
| 20 - 100 | 68 - 212 | 16.6 · 10-6 | 9.2 · 10-6 |
| 20 - 870 | 68 - 1600 | 19.8 · 10-6 | 11 · 10-6 |
| Temperature Range | W/m · K | Btu/(hr/ft²/in/°F) | |
|---|---|---|---|
| °C | °F | ||
| 100 | 212 | 16.3 | 9.4 |
| 500 | 932 | 21.4 | 12.4 |
| °C | °F | J/kg °K | Btu/lb/°F |
|---|---|---|---|
| 0-100 | 32-212 | 500 | 0.12 |
Magnetic Permeability
- H/m Annealed
- 1.02 Max @ 200 H
| °C | °F | Microhm-cm | MIcrohm-in. |
|---|---|---|---|
| 20 | 68 | 72 | 28.3 |
| 100 | 212 | 78 | 30.7 |
| 200 | 392 | 86 | 33.8 |
| 400 | 752 | 100 | 39.4 |
| 600 | 1112 | 111 | 43.7 |
| 800 | 1472 | 121 | 47.6 |
| 900 | 1652 | 126 | 49.6 |
Mechanical Properties and Yield Strength of 304 stainless
| Property | 302,304 | 304L |
|---|---|---|
| 0.2% Offset Yield Strength, psi (MPa) | 42 (290) | 35 (241) |
| Ultimate Tensile Strength, psi (MPa) | 90 (621) | 85 (586) |
| Elongation % in 2 in. (50.8 mm) | 55 | 55 |
| Hardness Rockwell | B82 | B80 |
*The technical data provided is for information only and not for design purposes. It is not warranted or guaranteed.