Nickel Chromium Molybdenum Alloy 4340 Steel Supplier - China

4340 steel is nickel-chromium-molybdenu m alloy steel.

It will get high strength after the heat treat.

And it has good toughness, fatigue resistance, impact toughness and etc.

Its equivalent grade is JIS SNCM439 and DIN 1.6511 / DIN 1.6582 - The properties and composition of 4340 steel round bar sheet plate as below.

It is an alloy structural grade which used by the SAE International(SAE), and it is chrome-nickel low alloy steel.

4340 steel round bar sheet plate will get high tensile strength, hardness and toughness after heat treatment.

It is used widely in the transmission components of heavy chemical machinery.

Different sections of each part of the casting which cause the temperature difference stress and phase transformation stress.

If you can’t get their laws and characteristics, you can’t take the right rational processes.

The consequence is that there is a risk of cracking the casting during the casting or heat treatment.

So the control of chemical composition and the choice of the heat treatment process for the casting are really important.

4340 alloy steel is used to manufacture large and medium-sized plastic molds that require high strength and toughness.

And it is used for making important quality controlling parts with good toughness, high strength, and large size, such as heavy machinery and high load shafts, dia of turbine shafts is larger than 250mm, helicopter rotor shafts, turbojet turbine shafts, blades, high-load transmission parts, crankshaft fasteners, gears and etc.

After nitriding, it also can be used to make important parts for special performance requirements.

And it will be a great material for high strength and good plasticity parts after low-temperature tempering or isothermal quenching.

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.

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

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

• Email:

• Website: https://songshunsteel.com/

• 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.
  
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