UNS: S32100
EN-DIN: 1.4541
321 Stainless Steel Alloy
PRODUCTS & MATERIALS
321 Stainless Steel Strip, Coil & Sheet
- AMS 5510
- ASTM A240
Our wide capabilities give us a unique ability to supply all of your 321 stainless steel strip, coil, and sheet needs.
description
321 Stainless Steel Alloy Description:
321 grade stainless has excellent resistance to oxidation and corrosion and possesses good creep strength. Type 321 is a stabilized austenitic stainless steel similar to type 304 but with titanium addition used in applications involving continuous or intermittent service at 800-1500 oF (427-816 oC).
applications
321 Stainless Steel Alloy Uses & Applications:
- Annealing covers
- High-temperature tempering equipment
- Diesel and heavy duty automotive exhaust systems, firewalls
- Stack liners
- Heat shields
- Boiler casings
- Welded pressure vessels
- Jet aircraft components
- Bellows
- Oil refinery equipment
Nominal Composition
| C | Mn | P | S | Si | Cr | Ni | Ti | N | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | – | – | – | – | – | 17.0 | 9.0 | 5X(C+N) | – | – |
| MAX | 0.080 | 2.0 | 0.045 | 0.030 | 0.75 | 19.0 | 12.0 | 0.70 | 0.10 | BAL |
Physical Properties
| At 70°F | At 20°C | |
|---|---|---|
| Density | 0.29 lb./in³ | 8.09 g/cm³ |
| Modulus of Elasticity (E) | 28.0 x 10³ ksi in tension | 193 x 10³MPa in tension |
| Coefficient of Expansion | 9.2 x 10⁻⁶ microinches/in.-°F (32-212°F) | 16.6 μm/m-°C (0-100°C) |
| Electrical Resistivity | 28.4 μ ohm.in | 72 μ ohm.cm |
| Thermal Conductivity | 9.3 Btu-in./ft.²hr.-°F (100°C) | 16.0 W/m-K (100°C) |
Typical Room Temperature Mechanical Properties
Typical Mechanical Properties
Typical mechanical properties are based on AK source, ASTM A240.
| Condition | Tensile Strength Min (UTS) | 0.2% YS Min | Elongation% in 2” Min (50.8 mm) | Hardness Rockwell |
|---|---|---|---|---|
| Annealed | 85 ksi (586 MPa) | 35 ksi (241 MPa) | 55% | 70 HRBW |
Limitation of Liability and Disclaimer of Warranty:
- The content in these data sheets is provided primarily by third-party melting mills and is provided for reference only. It is not intended for engineering or design.
- Applications may be discussed, however, Combined Metals Company, LLC, does not recommend or endorse any material for any particular end use or application.
- The data included in this data sheet are typical values and may vary.
- Combined Metals Company, LLC, makes no representations or warranties, express or implied, as to the accuracy, completeness, condition, suitability, performance, fitness for a particular purpose, or merchantability of any information contained in any data sheet.
In no event will Combined Metals Company, LLC, be liable for any damages whatsoever arising from the use of the information included in the data sheets.
Combined Metals: Who We Are
Combined Metals Company (formerly Combined Metals of Chicago ) processes and distributes over 75 alloys of precision strip and wire. Our precision rolling mills, drawing mills, and extensive network of independent North American service centers, support thousands of customers in many industries including Aerospace, Automotive, Chemical, Consumer, Defense, Electronics, Medical, Oil/Gas, and Power Generation, worldwide.
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