Stainless
Stainless 301
Annealing Procedure
1850-2050 F (101-1121 C) followed by rapid cooling. For thin sections air cooling is acceptable, while heavier sections should be water quenched.
Applications
Automotive trim, kitchen equipment, hose clamps, wheel covers, aircraft components and a wide variety of industrial applications.
Cold Workability
Most common cold work methods are successful with this alloy. It should be understood however that the material will be more difficult to work than other austenitic stainless steels due its high work hardening rate. The resulting hardening will, however, produce increases in strength and toughness which may be of value in the finished product.
Forgeability
Commence forging at 2000-2200 F(1093-1204 C) and finish at 1700 F(927 C).
Formability
Easily formed in the annealed condition. Care must be taken in forming operations which involve deforming the material in the tempered condition as cracking and tearing can result. Intermediate annealing only serves to reduce the hardness and therefore ultimate properties.
Hardening Procedure
This alloy does not respond to heat treatment.
Hot Workability
While cold forming is recommended wherever feasible, forging, upsetting and other operations can be performed at 1800-2100 F. Temperatures above this range will cause scaling and a reduction in the workability of the material. Post-process annealing is required to re-attain maximum corrosion resistant properties.
Machinability
301 is not available in bar, plate, tube, pipe or forging, therefore no information is available.
Principle Design Features
301 is a commonly available austenitic stainless with good corrosion resistance and elevated carbon to allow for cold working to a variety of tempers. It can be obtained in the annealed, 1/4 hard, 1/2 hard, 3/4 hard, full hard, extra full hard and high yield tempers from both producers and distributors.
Weldability
All popular techniques may be used, however the material will lose temper in the heat affected weld zone.
Known Forms
Angle
Channel
Coil
Disc
Flat Bar
Foil
Hexagon Bar
Hollow Bar
Pipe
Plate
Precision Ground Bar
Rectangle Tube
Ring
Rod
Round Bar
Round Tube
Sheet
Square Bar
Square Tube
Standard Beam
Strip
Tee
Wire Flat
Additional Data
Specifications
301,5517,5518,5519,A167,A177,A554,A666,1.4310,S-5059,S766,S30100Chemical Elements
| Carbon | 0.15 max |
| Chromium | 16 - 18 |
| Iron | Balance |
| Manganese | 2 max |
| Nickel | 6 - 8 |
| Phosphorus | 0.045 max |
| Silicon | 1 max |
| Sulphur | 0.03 max |
Physical Properties
Density: 0.29lb/in³
Electrical Resistivity: 432µΩ·cm
Specific Gravity: 7.8
Specific Heat: 0.12BTU/lb·°F
Mechanical Properties
Modulus of Elasticity – Tension: 28MSI
Thermal Conductivity
| Condition | Temperature | Conductivity |
|---|---|---|
| Annealed | 212 °F | 9.4 BTU/hr·ft·°F |
| Annealed | 932 °F | 12.4 BTU/hr·ft·°F |
Thermal Expansion
| Condition | Min | Max | Expansion Coefficient |
|---|---|---|---|
| Annealed | 70 °F | 212 °F | 9.2 μin/in·°F |
| Annealed | 70 °F | 572 °F | 9.8 μin/in·°F |
| Annealed | 70 °F | 1292 °F | 10.8 μin/in·°F |
| Annealed | 70 °F | 1600 °F | 11 μin/in·°F |
Mechanical Test Data
| Form | Sheet |
| Condition | Annealed |
| Temperature | -320°F |
| Elongation | 30% |
| Tensile Strength | 275 KSI |
| Yield Strength | 74 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | -80°F |
| Elongation | 40% |
| Tensile Strength | 195 KSI |
| Yield Strength | 50 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | -40°F |
| Elongation | 42% |
| Tensile Strength | 180 KSI |
| Yield Strength | 48 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | 70°F |
| Brinell Hardness | 165 HB |
| Elongation | 40% |
| Rockwell Hardness | B85 |
| Tensile Strength | 75 KSI |
| Yield Strength | 30 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | 400°F |
| Elongation | 46% |
| Tensile Strength | 80 KSI |
| Yield Strength | 22 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | 800°F |
| Elongation | 39% |
| Tensile Strength | 67 KSI |
| Yield Strength | 20 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | 1200°F |
| Elongation | 36% |
| Tensile Strength | 41 KSI |
| Yield Strength | 15 KSI |
| Form | Sheet |
| Condition | Annealed |
| Temperature | 1600°F |
| Elongation | 29% |
| Tensile Strength | 16 KSI |
| Yield Strength | 10 KSI |
| Form | Strip |
| Condition | Full Hard |
| Temperature | -423°F |
| Elongation | 15% |
| Tensile Strength | 340 KSI |
| Yield Strength | 250 KSI |
| Form | Strip |
| Condition | Full Hard |
| Temperature | -320°F |
| Elongation | 20% |
| Tensile Strength | 302 KSI |
| Yield Strength | 215 KSI |
| Form | Strip |
| Condition | Full Hard |
| Temperature | 70°F |
| Brinell Hardness | 382 HB |
| Elongation | 9% |
| Rockwell Hardness | C41 |
| Tensile Strength | 185 KSI |
| Yield Strength | 140 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | -320°F |
| Elongation | 25% |
| Tensile Strength | 290 KSI |
| Yield Strength | 116 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | -80°F |
| Elongation | 37% |
| Tensile Strength | 205 KSI |
| Yield Strength | 105 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | -40°F |
| Elongation | 38% |
| Tensile Strength | 188 KSI |
| Yield Strength | 101 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | 70°F |
| Brinell Hardness | 297 HB |
| Elongation | 18% |
| Rockwell Hardness | C32 |
| Tensile Strength | 150 KSI |
| Yield Strength | 110 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | 400°F |
| Elongation | 9% |
| Tensile Strength | 127 KSI |
| Yield Strength | 106 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | 800°F |
| Elongation | 7% |
| Tensile Strength | 117 KSI |
| Yield Strength | 86 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | 1200°F |
| Elongation | 10% |
| Tensile Strength | 58 KSI |
| Yield Strength | 48 KSI |
| Form | Strip |
| Condition | Half Hard |
| Temperature | 1600°F |
| Elongation | 12% |
| Tensile Strength | 16 KSI |
| Yield Strength | 14 KSI |
| Form | Strip |
| Condition | Quarter Hard |
| Temperature | 70°F |
| Brinell Hardness | 255 HB |
| Elongation | 25% |
| Rockwell Hardness | C25 |
| Tensile Strength | 125 KSI |
| Yield Strength | 75 KSI |
| Form | Strip |
| Condition | Quarter Hard |
| Temperature | 400°F |
| Elongation | 23% |
| Tensile Strength | 91 KSI |
| Yield Strength | 62 KSI |
| Form | Strip |
| Condition | Quarter Hard |
| Temperature | 800°F |
| Elongation | 18% |
| Tensile Strength | 82 KSI |
| Yield Strength | 55 KSI |
| Form | Strip |
| Condition | Quarter Hard |
| Temperature | 1200°F |
| Elongation | 20% |
| Tensile Strength | 51 KSI |
| Yield Strength | 40 KSI |
| Form | Strip |
| Condition | Quarter Hard |
| Temperature | 1600°F |
| Elongation | 15% |
| Tensile Strength | 19 KSI |
| Yield Strength | 15 KSI |
| Form | Strip |
| Condition | Three Quarter Hard |
| Temperature | -423°F |
| Elongation | 14% |
| Tensile Strength | 317 KSI |
| Form | Strip |
| Condition | Three Quarter Hard |
| Temperature | -320°F |
| Elongation | 20% |
| Tensile Strength | 290 KSI |
| Yield Strength | 193 KSI |
| Form | Strip |
| Condition | Three Quarter Hard |
| Temperature | -100°F |
| Elongation | 19% |
| Tensile Strength | 224 KSI |
| Yield Strength | 154 KSI |
| Form | Strip |
| Condition | Three Quarter Hard |
| Temperature | 70°F |
| Brinell Hardness | 342 HB |
| Elongation | 12% |
| Rockwell Hardness | C37 |
| Tensile Strength | 175 KSI |
| Yield Strength | 135 KSI |