301 1/4 Hard is available in sheet and strip. For all stock availability of contact Sales
| Grade | US Aerospace/Military | US Commercial | British Specification | European Specification | Other |
| 301 1/4 Hard | AMS 5517 1/4 Hard Sheet /Strip MIL-S-5059 |
ASTM A240 / ASME SA240 ASTM A666 / ASME SA666 |
BS 970; 301S21 | Werkstoff 1.4324 AFNOR Z21CN17-08 |
UNS S30100 |
| Chemical Composition Limits | |||||||||||
| Weight % | C | Si | Mn | P + S max | Cr | Ni | Cu | Mo | Fe | ||
| AMS 5517 301 1/4 Hard |
0.15 max | 1.00 max | 2.0 max | 0.040 P 0.030 S |
16-18 | 6-8 | 0.75 max | 0.75 max | Bal | ||
Grade 301 is a 17% Chromium / 7% Nickel austenitic stainless steel. It is supplied in a range of different conditions/tempers depending on the level of strength required. It has good resistance to atmosphere corrosion and its bright attractive surface make it an excellent choice for decorative structural applications.
Resistance to Corrosion & Oxidation
Grade 301 has good resistance to oxidation at temperatures up to 1550°F, but is not recommend for use above 1600°F. 301 is resistance to a variety of corrosive media. However, it's corrosion resistance properties are not as good as the 18-8 chromium-nickel steels and its susceptibility to carbide precipitation during welding restricts its use in many applications in favour of 304/304L alloy. The mechanical properties for the different tempers of 301 are obtained by cold working and not by heat treating. 301 1/4 Hard (AMS 5517) material has a miniumum tensile strength of 125ksi and is used in the fabrication of parts that require moderate drawing or forming.
| Condition | Tensile Strength Min | 0.2% Yield Strength Min | Elongation % in 2" (50.8mm) | Hardness HRC | ||
| Ksi |
MPa | Ksi | MPa | |||
| AMS 5901 301 Annealed |
75 | 515 | 30 | 205 | 40 | 92 HRB |
| AMS 5517 301 1/4 Hard |
125 | 862 | 75 | 517 | 25 | 25 |
| AMS 5518 301 1/2 Hard |
150 | 1,034 | 110 | 758 | 18 | 32 |
| AMS 5902 301 3/4 Hard |
175 | 1,207 | 125 | 931 | 12 | 37 |
| AMS 5519 301 Full Hard |
185 | 1,276 | 140 | 965 | 9 | 41 |
Specifications
AMS 5901 301 Annealed Stainless Steel sheet and strip, cold rolled, 75ksi min (MIL-S-5059)
AMS 5518 301 1/2 Hard Stainless Steel sheet and strip, cold rolled, 150ksi min (MIL-S-5059)
AMS 5902 301 3/4 Hard Stainless Steel sheet and strip, cold rolled, 175ksi min (MIL-S-5059)
AMS 5519 301 Full Hard Stainless Steel sheet and strip, cold rolled, 185ksi min (MIL-S-5059)
UNS S30100
Harsh Steel export Stainless Steel 301 1/4 Hard to below countries.
Harsh steel is a major stockist and Exporter of Stainless Steel 301 1/4 Hard to many countries of the world such as Singapore, Brisbane, Sydney, Melbourne, Australia, Houston, TX, San Diego, San Francisco, Atlanta, USA, Brentford, United Kingdom, Phoenix, Ireland, New Zealand and Canada, Western Australia , Queensland, New South Wales, South Australia, Victoria, Australian Capital Territory, Tasmania, Northern Territory, Ontario, British Columbia, Yukon Territory, Alberta, Manitoba, Saskatchewan, New foundland, Prince Edward Island, New Brunswick, Nova Scotia, Eastern Cape, Gauteng, Kwazulu-Natal, Western Cape, England, Scotland, Wales, Northern Ireland, Lagos, Abuja Capital Territory, Vadodara, Mumbai, Chennai, New Delhi, Mahape, Gurgaon, Noida, Bangalore, Coimbatore, Cochin, Ash Sharqiyah, Ar Riyad, Makkah, Dhahran, Riyadh, Jiddah, Jeddah, Masqat, Kwazulu-Natal, Gauteng, Western Cape, Free State, Eastern Cape, Alberta, Saskatchewan, British Columbia, Newfoundland, New Brunswick, Manitoba, Ontario, Nova Scotia, Quebec, Calgary, Edmonton, Vancouver, Toronto, Birmingham, Brentford, Manchester, Bristol, Sheffield, Milton Keynes, London, Poplar, Edinburgh, Thames Ditton.