Type 301 (UNS S 30100) is an austenitic chromium-nickel strip coil stainless steel that can attain high tensile strength and ductility by cold-working.
301 Stainless Steel Specifications:
ASTM A240 for annealed condition
ASTM A666 for tempered material*
| Composition per ASTM A240 |
| Carbon | .15 Max |
| Manganese | 2.00 Max |
| Phosphorus | .045 Max |
| Sulfur | .030 Max |
| Silicon | 1.00 Max |
| Chromium | 16.00 – 18.00 |
| Nickel | 6.00 – 8.00 |
| Nitrogen | .10 Max |
| Molybdenum | |
| Type 301 Mechanical Properties |
| ASTM | AISI Type (UNS) | Conditions | Tensile Strength, MPa (ksi), ≥ | 0.2% Yield Strength, MPa (ksi), ≥ | Elongation in 50 mm (2 in.), %, ≥ | Brinell Hardness (HB), ≤ | Rockwell Hardness (HRB), ≤ |
| ASTM A666 | 301 (UNS S30100) | Annealed | 517 (75) | 205 (30) | 40 | 217 | 95 |
| Full Hard | 1275 (185) | 965 (140) | 8 (<0.015 in.);
9 (≥ 0.015 in) | | |
| Super Full Hard | 1860 (270) | 1790 (260) | – | | |
| Half Hard | 1035 (150) | 760 (110) | 15 (<0.015 in);
18 (≥ 0.015 in) | | |
| 3/4 Hard | 1205 (175) | 930 (135) | 10 (<0.015 in);
12 (≥ 0.015 in) | | |
| 1/4 (quarter-hard) Hard | 862 (125) | 517 (75) | 25 | | |
| 1/8 Hard | 690 (100) | 380 (55) | 40 | | |
| 1/16 Hard | 620 (90) | 310 (45) | 40 | | |
* Tempered mechanical properties are available upon request
301 Stainless Steel Strip Coil Applications:
Pots, Pans, Flatware, Counters, Sinks, Appliance components
Trim, Moldings, Wiper parts, Fastener parts
Dishwashers, Ovens, Refrigerators
Hinges, Doors, Frames, Roll formed sections, Spring clips, Clamps
Various equipment including conveyor belts
Aircraft, Trailer bodies, Rapid transit cars, Cargo containers
Magnetic properties:
301 stainless steel flat rolled coil is non-magnetic in the annealed condition but becomes magnetic when cold worked.
Forming:
Type 301 is used in fabrication by bending, roll forming, blanking, stretch bending and drawing. It’s high work hardening rate helps minimize wall thinning when deformed. Deep drawing may require intermediate annealing or higher nickel content.
