High Quality Gb 40cr Alloy Steel With Excellent Fatigue Resistance - China

GB 40Cr alloy steel is a medium carbon alloy structural steel in the Chinese national standard (GB/T 3077).

It has excellent fatigue resistance, high strength, good hardenability and comprehensive mechanical properties.

It is widely used in machinery manufacturing, automobiles, engineering machinery and other fields.

Fatigue resistance advantages of GB 40Cr alloy steel

The high fatigue limit of 40Cr steel makes it an ideal choice for parts that bear alternating loads, mainly due to:

1 - High hardenability (Cr-Mn alloying) → uniform structure after heat treatment, reducing fatigue crack initiation.

2 - Good tempering stability → still maintain high strength after high temperature tempering, suitable for long-term dynamic loads.

3 - Fine grain structure → reduce stress concentration and improve fatigue life.

GB 40Cr alloy steel has become a key material in the machinery manufacturing industry due to its excellent fatigue resistance, good hardenability and comprehensive mechanical properties, and is especially suitable for high-strength parts that bear alternating loads and impact loads.

Through quenching and tempering treatment + surface strengthening, its fatigue life can be further improved to meet the stringent requirements of the automotive, engineering machinery and other fields.

Company Contact:

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

• Phone: 0086 0769 85475596

• 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.
  
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