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  • Medium Carbon Modulation 5140 Alloy Steel Suppliers Hot Sale - China

    price: 1008.00 Dollar US$

    AISI 5140 steel also can be called JIS Scr440 and DIN 1.7035 steel.

    It is one of the alloy steel as well as the most popular steel grades in the productions of the machine.

    AISI 5140 steel round bar price is on the medium level and it was easy to processing.

    After tempering and quenching, the toughness, plasticity and wearing resistance of it will get better.

    Steel normalizing can make the spheroidizing for the organization of steel get easier.

    And it will raise the machinability of the semi-finished product with the hardness less than 160HBS.

    Tempering it at the temperature of 550℃-570℃ which can make it get better mechanical property.

    And the hardenability of it is higher than S45C steel.

    You can check 5140 Steel chemical composition and mechanical properties as below.

    5140 Steel Application

    After hardening and tempering, it can be used to make the fittings for machines with high medium load and speed of work.

    Such as the automobile knuckle, gear wheel and axis of the machine tools.

    If it had been quenching and tempering with medium temperature, it will be a great choice for fittings with high load, low impact and good wearing resistance.

    Such as the gear wheel, lantern ring and etc.

    And after quenching and low-temperature tempering, the properties will be better than the last one.

    People usually use it to make the parts with good wearing resistance and handle high load, low impact.

    And you can see the principal axis, mechanical bolt and etc are made of it.

    5140 steel should be preheated before welding to prevent cooling and quenching cracking inside the weld due to heat dissipation from the matrix.

    After welding, it is best to add normalizing before quenching and tempering.

    Weldability of 5140 steel:

    It is easy to segregate during crystallization and is sensitive to crystallization cracks (a kind of thermal cracks), and it is easy to crack in arc craters and concave parts of welds during welding.

    The carbon content is high, and it is easy to obtain a hardened structure (martensite structure) that is sensitive to cold cracks during rapid cooling.

    When the cooling rate of the superheated zone is large, it is easy to form hard and brittle high-carbon martensite to embrittle the superheated zone.

    Dongguan Songshun Mould Steel Co., LTD

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

    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 offer a wide range of high-quality steel for automobile manufacturing, engineering machinery, mold tooling, cutting tools manufacturing industry and also get high praise by at home and aboard clients.

    songshunsteel4140 4340


    Company Contact:


    • Phone: 0086 0769 85475596

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

    • Email: Email


    Published date: August 19, 2022

    • 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

      Our Products:

      - High Quality Alloy Heat Treating Steel Bars

      - Odm High Strength Songshun Steel Supplier Round Bars Price

      - China Supplier Spectrometer Test Hot Rolled Alloy Steel Chemical Composition

      - American Standard High Strength Impact Resistance Aisi 4340 Alloy Structural Steel Square

      - Low Cost Weld Building Steel Structural Alloy Round Bars Product

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