Grade 431 is available in Bar (Round), Strip, Wire, Rod, Billet. For all stock availability of contact Sales.
| Grade | US Aerospace/Military | US Commercial | British Specification | Other |
| 431 |
AMS 5628 Bars / wire / forgings AMS-S-18732 MIL-S-18732 QQ-S-763 |
STM A276 / ASME SA276 ASTM A478 / ASME A478 ASTM A314 / ASME SA314 ASTM A484 / ASME SA484 ASTM A580 / ASME SA580 |
BS 7S80 BS 970; 431S29 EN57 |
UNS S43100 DMS-1565 |
| Chemical Composition Limits | |||||||||||
| Weight% | C | P | Si | Ni | Mn | S | Cr | Fe | Mo | Cu | N |
| Alloy 431 |
0.12-0.17 | 0.040 max | 0.20-0.60 | 2-3 | 0.3 | 0.030 | 15.50-16.50 | Bal | 0.25 | 0.50 | 0.10 |
Alloy 431 is the most corrosion resistant of the martensitic grades. Due to Alloy 431's excellent tensile and torque strength and good toughness it is used in structural parts that are exposed to marine atmosphere, also for aircraft fasteners and fittings.
| Material | Condition |
Tensile Strength (MPa) | Proof Stress 0.2% (MPa) | Elongation 2"% | Reduction of Area | Brinell Hardness |
| Alloy 431 | Alloy 431 Annealed | 862 | 655 | 20 | 55 | 260 |
| Alloy 431 | Alloy 431 Heat Treated AMS 5628 | 1379 | 1034 | 10 | 40 | - |
Specifications
Grade 431 Stainless Steel Bar, Wire, Forgings, Tube
AMS 5628 Bars / wire / forgings
AMS-S-18732
MIL-S-18732
QQ-S-763
ASTM A276 / ASME SA276
ASTM A478 / ASME A478
ASTM A314 / ASME SA314
ASTM A484 / ASME SA484
ASTM A580 / ASME SA580
BS 7S80
BS 970; 431S29
EN57
UNS S43100
DMS-1565
Harsh Steel export Stainless Steel Grade 431 to below countries.
Harsh steel is a major stockist and Exporter of Stainless Steel Grade 431 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.