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China Wholesale Aisi 4140 Steel Round Bar Price Per Kg - China

price: check with company for price

China Wholesale Aisi 4140 Steel Round Bar Price Per Kg

Products Photos Catalog Aisi 4140 Steel Bar Photos Catalog

Is 4140 a carbon steel?

ANSWER: It is considered a low alloy or carbon steel.

With the addition of chromium and molybdenum, it is one of the most common alloy steels.

The chromium boosts corrosion resistance and the molybdenum boosts toughness.

AISI 4140 alloy steel round bar sheet plate belongs to medium hardenability steel.

AISI 4140 steel has high fatigue strength and low notch sensitivity.

Low-temperature impact toughness is also very high, no obvious temper brittleness.

AISI 4140 steel round bar is mainly used after quenching and tempering state.

it is used to manufacture high-strength parts under impact loads and the fittings with large cross-sections and other stressed members.

Such as the horizontal eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, and etc.

Its equivalent grade is JIS SCM440 and DIN 1.7225 - The properties and composition of 4140 steel round bar sheet plate as below.

AISI 4140 Steel Bar, Steel Plate, Flats Supplier, Stockist and Exporter.

AISI SAE 4140 alloy steel is a chromium molybdenum alloy steel specification widely used in general purpose high tensile steel for components, like axles, shafts, bolts, gears and other applications.

Similar to alloy grade AISI 4130 chrome moly alloy steel but with a slightly higher carbon content.

The higher carbon content of AISI 4140 steel gives greater strength and heat treatment capabilities in comparison to AISI / ASTM 4130 alloy steels, however it does have inferior weldability characteristics.

Songshun Steel

Dongguan Songshun Mould Steel Co., LTD which is an industrial and trading company with 3500-7000ts hydraulic forging machine.

We provide a great variety of steels, competitive price with good quality and keep the large stock are over 20000 tons.

songshunsteel4140434 01


Company Contact:


  • Phone: 076985475596

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

  • Email: Email


Published date: October 5, 2023

  • 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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