Harsh Steel AISI 4140 (AMS 6349/ AMS 6382) UNS G41400:-

Alloy 4140 (AISI 4140) is available in Bars (Rounds, Flat, Square, Hexagons). For all stock availability of contact Sales.

Grade US Aerospace/Military US Commercial Other
4140 Ann AMS 6349
AMS 6382
AMS S 5626
MIL-S- 5626
ASTM S331 UNS G41400

Technical Data Sheet

Chemical Composition Limits
Weight% C Si Mn Cr Mo
4140 Ann 0.40 0.25 0.85 1.00 0.25
4140 Normalised 0.40 0.25 0.85 1.00 0.25

Alloy 4140 (AISI 4140) is a low alloy steel containing Chromium and Molybdenum. Alloy 4140 is the most widely used alloy for oil patch applications. Usually supplied hardened and tempered to condition T in sections up to 100mm with a tensile strength of 850 - 100%MPa and aiming for this strength range in larger sections. Alloy 4140 (AISI 4140) offers a very good balance of strength, toughness and wear resistance. Other typical applications are axles, conveyor parts, crow bars, gears, logging parts, spindles, shafts, pump shafts, sprockets, studs, pinions, rams, ring gears.

Typical Mechanical Properties

Alloy Section mm Yield Strength MPa Tensile Strength MPa Elongation % Izod J Hardness HB
Alloy 4140 50 770 930 17 90 275
Alloy 4140 100 710 920 15 70 270
Alloy 4140 200 570 850 14 60 250


AMS 6349
AMS 6382
AMS S 5626
MIL S 5626
AS 1444-1996
UNS G41400

Harsh Steel export Harsh Steel AISI 4140 to below countries.

Harsh steel is a major stockist and Exporter of Harsh Steel AISI 4140 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 Annealed (AMS 5901) UNS S30100 Werkstoff 1.4324