Gb 40cr Steel Round Bar Chemical Composition And Performance Characteristics - China

The main chemical components of GB 40Cr steel round bar include carbon, chromium, silicon, manganese, sulfur, and phosphorus.

The carbon content ranges from approximately 0.38% to 0.45%, while the chromium content typically ranges from 0.80% to 1.10%.

The addition of these elements contributes to the steel's excellent mechanical properties and corrosion resistance.

The high carbon content imparts excellent strength and hardness to the steel, while the chromium element significantly enhances its corrosion and wear resistance.

It also improves its hardenability, enabling it to achieve greater hardness and toughness during heat treatment.

The hardness of GB 40Cr steel round bar can reach 180 to 250 HB (Brinell hardness) after quenching and tempering.

After heat treatment, its tensile strength typically ranges from 600 to 900 MPa, and its yield strength can reach approximately 480 MPa.

These performance parameters ensure its stability under dynamic loads and high-stress operating environments, allowing it to withstand significant impact forces without brittle cracking.

In addition to strength, GB 40Cr steel round bar also has good plasticity and toughness, which facilitates machining and subsequent assembly.

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.

Songshun Company Website:

https: //songshunsteel.

com/

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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.
  
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