304/304L DDQ Stainless Steel
Type 304 deep draw quality (304 DDQ) stainless steel is an austenitic chromium-nickel stainless steel that is used in special applications that require deep drawing and excellent formability. 304 DDQ also has an elevated nickel content that provides higher corrosion resistance.
Specifications
ASTM A240 for annealed condition
ASTM A666 for tempered material*
| Composition per ASTM A240 | |
|---|---|
| Carbon | .07 Max |
| Manganese | 2.00 Max |
| Phosphorus | .045 Max |
| Sulfur | .030 Max |
| Silicon | .75 Max |
| Chromium | 17.50 - 19.50 |
| Nickel | 8.50 Min |
| Nitrogen | 0.10 Max |
| Molybdenum | |
| Mechanical Properties (Annealed, Per ASTM A240) | |
| UTS | 75,000 ksi Min |
| Elongation % in 2" | 40.00 Min |
| Rockwell Hardness |
RB92.00 Max |
* Tempered mechanical properties are available upon request.
304 deep draw quality stainless steel is used for specific applications including:
- Automotive: Fuel tanks
- Kitchenware: Sinks and other domestic appliances
Magnetic Properties: 304 flat rolled stainless steel is generally non-magnetic and becomes slightly magnetic only when cold-worked.
Forming: 304 deep draw quality stainless steel has great forming capabilities that allow for severe drawing applications.
