Type 321 Stainless Steel (UNS S32100) is an austenitic stainless steel angle bars that has fives times more titanium than carbon in its content. The increased titanium level aids in preventing carbide precipitation during welding. As a result, Type 321 Stainless Steel is both creep resistant and resistant to oxidation.
321 stainless steel flat rolled coil is generally used in applications that require sustainability to high intermittent temperatures.
321 Stainless Steel Specifications:
ASTM A240 for annealed condition
ASTM A666 for tempered material*
| Composition per ASTM A240 | |
|---|---|
| Carbon | .08 Max |
| Manganese | 2.00 Max |
| Phosphorus | .045 Max |
| Sulfur | .030 Max |
| Silicon | .75 Max |
| Chromium | 17.00 – 19.00 |
| Nickel | 9.00 – 12.00 |
| Nitrogen | .10 Max |
| Molybdenum | |
| Mechanical Properties (Annealed, Per ASTM A240) | |
| UTS | 75,000 ksi Min |
| Elongation % in 2″ | 40.00 Min |
| Rockwell Hardness | RB95.00 Max |
* Tempered mechanical properties are available upon request.
321 Stainless Steel Applications:
Aerospace
- Aircraft exhaust manifolds and flanges
- Jet engine parts
Automotive
- Diesel and heavy duty exhaust systems
- Heat exchangers
Chemical Processing
- Chemical handling equipment
- Oil refinery equipment
Oil Or Gas
- Stainless Steel Elbows
- Stainless Steel Angle Bars
- Stainless Steel Bars
- Stainless Steel U Tubes
- Stainless Steel Concentric Reducer
- Stainless Steel Pipes
- Stainless Steel Pipe Fittings
- Stainless Steel Tubes
- Stainless Steel Flanges (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
Magnetic Properties:
321 Stainless Steel Angle Bars is generally non-magnetic.
Forming:
Type 321 Stainless Steel can be easily formed and drawn, but it may require re-annealing after forming and drawing.
Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)
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