Alloy 4130 (AISI 4130) is available in Sheet, Tube, Plates, Rods, Bars (Squares, Rounds, Hexagons, Flats) and Welding Wire. For all stock availability of contact Sales.
| Grade | US Aerospace/Military | US Commercial | British Specification | Other |
| 4130 | AMS 6345 Sheet / Plate, Normalised AMS 6346 Bar Hardened & Tempered AMS 6350 Sheet / Plate AMS 6351 Sheet / Plate, spheroidised AMS 6370 Bar, AMS 6371 Tube MIL-S-6758, MIL-S-18729 MIL-T-67366 |
AISI 4130 ASTM A322 ASTM A331 |
S534 S535 |
UNS G41300 |
| Chemical Composition Limits | |||||||||||
| Weight% | C | Mn | P | S | Si | Cr | Ni | Mo | Cu | ||
| 4130 Bar/Tube | 0.28 - 0.33 | 0.40-0.60 | 0.025 max | 0.025 max | 0.15 - 0.35 | 0.80-1.10 | 0.25 max | 0.15-0.25 | 0.35 | ||
| 4130 Sheet/Plate | 0.28 - 0.33 | 0.40 - 0.60 | 0.025 max | 0.025 max | 0.20-0.35 | 0.80-1.10 | - | 0.15 - 0.25 | - | ||
Alloy 4130 (AISI 4130) is a chromium molybdenum alloy steel. Alloy 4130 is a widely used Aircraft Steel due to its weldability, ease of fabrication and mild hardenability. The hardenability and weldability of Alloy 4130 are considered equivalent to 8630 (MIL-S-6250) . Alloy 4130 is also vacuum degassed to meet the magnetic particle inspection standards of AMS 2301.
| Alloy | Condition | Thickness | Tensile Strength ksi | Yield Strength ksi | Elongation | Hardness |
| Tube (AMS 6371) | Cold Drawn | - | 95 | 70 | 12 | <25 |
| Bar (AMS 6370) | Annealed | - | - | - | - | 29HB Max |
| Bar (AMS 6346) | Hardened & Tempered | - | 125 | 100 | 17 | - |
| Sheet (AMS 6350) | Annealed | - | - | - | - | <25 HRC |
| Sheet (AMS 6345) | Normalised | <0.062" |
95 |
75 | 8 | - |
| Sheet (AMS 6345) | Normalised | 0.062" - 0.125" | 95 | 75 | 10 | - |
| Sheet (AMS 6345) | Normalised | 0.125" - 0.187" | 95 | 75 | 12 | - |
| Sheet (AMS 6345) | Normalised | 0.187" - 0.250" | 90 | 70 | 15 | - |
| Sheet (AMS 6345) | Normalised | 0.250" - 0.750" | 90 | 70 | 16 | - |
| Sheet (AMS 6345) | Normalised | 0.750" - 1.500" | 90 | 70 | 18 | - |
| Sheet (AMS 6345) | Normalised & Heat Treated | 0.249" - 0.375" |
- | - | - | 42 |
| Sheet (AMS 6345) | Normalised & Heat Treated | 0.375" - 0.500" | - | - | - | 38 |
| Sheet (AMS 6345) | Normalised & Heat Treated | 0.500" - 0.625" | - | - | - | 32 |
| Sheet (AMS 6345) | Normalised & Heat Treated | 0.625" - 0.750" | - | - | - | 29 |
| Sheet (AMS 6345) | Normalised & Heat Treated | 0.750" - 0.875" | - | - | - | 27 |
| Sheet (AMS 6345) | Normalised & Heat Treated | 0.875" - 1.500" | - | - | - | 26 |
Specifications
AMS 6345 Sheet / Plate, Normalised
AMS 6346 Bar Hardened & Tempered
AMS 6350 Sheet / Plate
AMS 6351 Sheet / Plate, spheroidised
AMS 6370 Bar
AMS 6371 Tube
MIL-S-6758
MIL-S-18729
MIL-T-67366
AISI 4130
ASTM A322
ASTM A331
S534
S535
UNS G41300
Harsh Steel export Harsh Steel 4130 to below countries.
Harsh steel is a major stockist and Exporter of Harsh Steel 4130 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.