Songshun Warehouse 40cr Alloy Steel Excellent Quenching And Tempering Performance - China

40Cr alloy steel is a commonly used medium carbon quenched and tempered steel.

Its comprehensive mechanical properties are excellent after quenching and tempering (quenching + high temperature tempering).

The following are its key features and application analysis: Mechanical properties of 40Cr alloy steel after quenching and tempering

| Performance index | Typical value (after quenching and tempering) |

|||

| Tensile strength (σb) | 800~1000 MPa |

| Yield strength (σs) | ≥650 MPa |

| Elongation (δ5) | ≥12% |

| Impact energy (Akv) | ≥47 J (normal temperature) |

| Hardness | HRC 22~32 (HB 220~320) | Process precautions

Hardenability limitation: When the cross section is greater than Φ30mm, oil quenching may result in insufficient hardness in the core, and water quenching or use of higher hardenability steel (such as 42CrMo) is required.

Temper brittleness: Avoid tempering at 250~400℃ (first type temper brittleness zone), and cool quickly through this zone.

Surface strengthening: After quenching and tempering, high-frequency quenching, nitriding, etc.

are often used to improve surface wear resistance.

Material selection suggestions

- Preferentially choose 40Cr alloy steel quenching and tempering state: when parts need to take into account high strength, certain toughness and fatigue life.

- Alternatives: If the budget allows and the cross-section is large, it can be upgraded to 42CrMo; if the load is light and cost-sensitive, 45 steel quenching and tempering can be selected.

Through reasonable quenching and tempering, 40Cr alloy steel can give full play to its performance potential and is one of the most economical and efficient materials in mechanical manufacturing.

Songshun Company Website:

https: //songshunsteel.

com/

songshunsteel20240115

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
  
  songshunmoldsteel414 04340