Alloy 420F is a free-machining hardenable steel that is generally used in parts that require high hardness and good corrosion resistance. Alloy 420F is easy to machine, grind and polish and is used in many different applications from pump shafts, screw machines, cams, pivots, gears etc. Alloy 420F is not recommended for vessels containing gases or liquids under high pressure. 420F is supplied in either cold finished or hot finished bar in the annealed condition (hardness 241HB max).
Grade 420F is available in Sheet, Bar (round), Wire, Billet, Rod. For all stock availability of contact Sales.
| Grade | US Aerospace/Military | US Commercial | Other |
| 420F | AMS 5620 Bars (free machining) QQ-S-764 |
ASTM A582 /ASME SA582 ASTM A484 / ASME SA484 |
UNS 42020 |
| Chemical Composition Limits | |||||||||||
| Weight% | C | Mn | Si | P | S | Cr | Se | Ni | Mo/Zr | ||
| Alloy 420F Type 1 |
0.30-0.40 | 1.25 | 1.00 | 0.060 | 0.030 | 12-14 | 0.18-0.35 | 0.10 | 0.60 | ||
| Alloy 420F Type 2 |
0.30-0.40 | 1.25 | 1.00 | 0.060 | 0.15-0.35 | 12-14 | - | 0.50 | 0.60 | ||
Specifications
AMS 5620 Bars (free machining)
QQ-S-764
ASTM A582 /ASME SA582
ASTM A484 / ASME SA484
UNS 42020
Harsh Steel export Stainless Steel 420F to below countries.
Harsh steel is a major stockist and Exporter of Stainless Steel 420F 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.