Stainless Steel 301 1/4 Hard (AMS 5517) UNS S30100 Werkstoff 1.4324:-

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
ASTM A240 / ASME SA240
ASTM A666 / ASME SA666
BS 970; 301S21 Werkstoff 1.4324
AFNOR Z21CN17-08
UNS S30100

Technical Data Sheet

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.

Typical Mechanical Properties

Condition Tensile Strength Min 0.2% Yield Strength Min Elongation % in 2" (50.8mm) Hardness HRC
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


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.

Enquiry for Stainless Steel 301 1/4 Hard (AMS 5517) UNS S30100 Werkstoff 1.4324