301 Stainless Steel
Penn Stainless inventory now includes Alloy 301 (UNS S30100) in sheet and sheet coil with short delivery. This grade is inventoried in three conditions: 1/4 hard, 1/2 hard, Full hard.
Stainless steel grade 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 1/4 hard, 1/2 hard, and full hard.
High strength and excellent corrosion resistance make Type 301 Stainless Steel useful for a wide variety of applications. Typical uses include:
- aircraft structural parts
- trailer bodies
- architectural and automotive rim
- roof drainage products
- conveyor belts
- variety of industrial applications.
- ASTM/ASME: UNS S30200
- EURONORM: X 12 CrNi 17 7
- DIN: 1.4310
- Good resistance in applications involving external exposure to mildly corrosive conditions at ambient temperatures.
- Resists outdoor, industrial, marine, and mild chemical environments
- susceptible to carbide precipitation during welding, which restricts its use in some applications
- Similar to resistance of Stainless Steel grade 304
- Can be exposed continuously without appreciable scaling to a max of 1600°F(871°C).
- Maximum exposure temperature is about 1450°F (788°C), for intermittent exposure
- Has an oxidation weight gain of 10mg/cm 2 in 1,000 hours, in temperatures over 1600°F (871°C).
- Solution Treatment (Annealing) – Heat to 1010-1120°C and cool rapidly.
- Use low side of range for intermediate annealing.
- This grade cannot be hardened by thermal treatment.
- hardens at high rate, creating a very high strength from cold rolling and from roll forming.
- more difficult to work than other austenitic stainless steels, due to its high work hardening rate.
- strain-hardened austenitite steel undergoes partial transformation into martensitite steel during this process.
- severe cold deformation can still occur, due to residual ductility.
- Grade 301 becomes strongly magnetic when cold rolled
- must be annealed for maximum corrosion resistance
- material will lose temper in the heat affected weld zone.
- Welding and post weld annealing will both remove high strength induced by prior cold rolling.
- Spot welding is commonly used to assemble cold rolled 301 components.
|Yield Strength 0.2%
|Elongation -% in 50 mm (min.)|
|301 Full Hard||185||140||9|
|Denstiy lbm/in3||Coefficient of
Thermal Expansion (min/in)-°F
|Electrical Resistivity mW-in||Thermal Conductivity BTU/hr-ft-°F||Melting Range|
|0.29||at 68 – 212°F||at 68 – 932°F||at 68 – 1450°F||at 68°F||at 212°F||at 392°F||at 752°F||at 1112°F||at 1472°F||at 68 – 212°F||2550-2590°F|