Astm 4140 Steel Comprehensive Guidelines - China

4140 Steel Chemical Composition

DIN 1.2312 steel is a commonly used mold steel with a higher sulfur content and is also equivalent to P20+S steel.

It is suitable for manufacturing many types of plastic molds and is an improved 1.2311 steel.

Alloy steel 4140 has a medium carbon content, provides good hardness and strength levels, and forms a hardened structure under appropriate heat treatment conditions.

4140 steel has the highest Mn element content, the addition of Mn has a strengthening effect, which is beneficial to improving the toughness, strength, cold workability, fatigue resistance, hardness, etc.

of the steel, and also promotes grain refinement.

We precisely control the chemical composition of the 4140 material to ensure that it meets customer needs and ensures excellent performance.

AISI 4140 Steel Properties

1 - Mechanical properties (quenching + tempering state) Tensile strength (σb): ≥1080MPa

Yield point (σs): ≥930MPa

Elongation or elongation after break (δ): ≥12%

Hardness: ≤217 HB

2 - Properties after heat treatment or processing High strength, hardness and hardenability

Excellent toughness and fatigue resistance

Good weldability and wear resistance

Good corrosion resistance

Easy to process and not brittle

Small deformation during quenching and high yield rate

Good gloss after grinding

These properties vary depending on the parameters used in the heat treatment process.

You tell us your special technical requirements and our engineers will evaluate them and send you a professional quotation.

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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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
  
  Songshun Tiktok: mikizhuo
  
  Songshun Facebook: Songshun Steel
  
  Songshun YouTube: MiKi Zhuo
  
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