Production Astm 4340 Alloy Steel Excellent Machinability - China

ASTM 4340 alloy steel (corresponding to Chinese grade 40CrNiMoA) is a medium-carbon low-alloy steel with high strength and high toughness.

Its excellent machinability makes it widely used in aerospace, oil drilling, heavy machinery and other fields.

The following are the key reasons for its excellent machinability and processing precautions: 1 - Reasons for excellent machinability

-Moderate carbon content (0.38-0.43%)

-The carbon content balances hardness and cutting performance, avoids the problem of excessive hardening of high carbon steel, and reduces tool wear.

2 - Optimized ratio of alloy elements

-Nickel (1.65-2.00%): Improve toughness and reduce the tendency of material brittle cracking during processing.

-Chromium (0.70-0.90%): Enhance hardenability, but the content is moderate to avoid excessive cutting resistance.

-Molybdenum (0.20-0.30%): Refines grains, improves hot working performance, and reduces hot brittleness.

ASTM 4340 alloy steel Good hot working properties

The hot rolling or forging temperature range is wide (usually heated to 1100-1200°C), and it is not easy to produce cracks or defects.

Through reasonable heat treatment process and processing parameter control, ASTM 4340 alloy steel can give full play to its balance advantages of high strength and excellent machinability, and is one of the ideal materials in heavy industry.

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!!!

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.
  
  Welcome your contact 24 hours a day!!!
  
  Skype/Whatsapp/We chat: +86-18269260283
  
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