Excellent Fatigue Life 4340 Alloy Structural Steel Songshun Large Inventory - China

4340 alloy structural steel is a low-alloy high-strength steel belonging to the Ni-Cr-Mo (nickel-chromium-molybden um) structural steel.

It is widely used in the manufacture of aviation, automobiles, molds and high-load mechanical parts due to its excellent mechanical properties, heat treatment responsiveness and good toughness and strength balance.

How good is the fatigue life of 4340 steel? After heat treatment to the quenched and tempered state (such as QT state), 4340 alloy structural steel shows excellent fatigue limit, and the typical fatigue strength can reach 570\~630 MPa (at 50% R.R.).

This is due to its:

* Uniform and fine quenched and tempered structure

* High content of Ni and Mo elements enhances its toughness and crack resistance

* Strong hardenability, suitable for large-section parts to obtain uniform hardness These characteristics make it still reliable under cyclic loads and impact loads, especially suitable for crankshafts, gears, connecting rods and other parts with extremely high fatigue strength requirements.

Typical fatigue application areas of 4340 alloy structural steel**

Aerospace structural parts: such as landing gear, tail beam support components

Racing cars and high-performance cars: such as connecting rods, transmission shafts

Heavy machinery: such as gears, bearing shafts

Mold structural parts: withstand periodic high loads In areas involving high strength and high fatigue life requirements, 4340 alloy structural steel is a mature, stable and reliable solution.

Whether you are doing aviation engineering, racing car manufacturing, or high-end machinery manufacturing, 4340 can help you "stand firm for a long time"

Songshun Company Website: https: //songshunsteel.

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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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