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Medium Carbon High Strength Aisi 4340 Alloy Steel - China

price: check with company for price

AISI 4340 alloy steel is an ultra-high strength medium carbon low alloy steel with deep hardenability, high ductility, toughness and strength, and has high fatigue resistance and creep resistance.

It is not affected by tempering and embrittlement, shows good strength retention at high temperatures, and is not easy to soften.

In thin sections, this steel is air hardened.

In practice, it is usually oil quenched.

AISI 4340 alloy steel is a medium carbon low alloy high strength steel with high strength, toughness, outstanding hardenability and stability against overheating.

It is widely used in important parts such as connecting rods, crankshafts, pump shafts and compressor shafts that are subject to impact cyclic loads.

With the development of society and the advancement of science and technology, the application and demand of micro-sized products with complex morphological characteristics in the fields of aerospace, national defense, military industry and machinery are expanding, and the requirements for the structural complexity, function and reliability of micro-products are also getting higher and higher.

Therefore, scholars from various countries have carried out research on the micro-machining of AISI4340 alloy steel.

What Songshun Steel Provide

Our main products are round and flat bars for alloy steel, tool steel, stainless steel, spring steel, bearing steel and etc.

In those years we offers a wide range of high quality steel for engineering machinery, mold tooling, cutting tools manufacturing industry and etc.


Company Contact:


  • Phone: 076985475596

  • Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

  • Email: Email


Published date: June 24, 2024

  • Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.

    After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.

    Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.

    Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.

    Songshun specialized in Special Steel for almost 20 years.

    We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.

    Welcome your contact 24 hours a day!!!

    Skype/Whatsapp/We chat: +86-18269260283

    Songshun Tiktok: mikizhuo

    Songshun Facebook: Songshun Steel

    Songshun YouTube: MiKi Zhuo

    songshunmoldsteel414 04340

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