40crmn Steel

40CrMn Steel

 

40CrMn steel is a medium carbon alloy steel that offers a combination of good mechanical properties and hardenability. It is widely used in various industrial applications due to its strength, toughness, and wear resistance.

 

Chemical Composition:

 

Carbon (C): 0.37% - 0.45%

Silicon (Si): 0.17% - 0.37%

Manganese (Mn): 0.90% - 1.20%

Chromium (Cr): 0.90% - 1.20%

Phosphorus (P): ≤0.035%

Sulfur (S): ≤0.035%

 

Mechanical Properties:

 

Property	Value
Tensile Strength	980 - 1180 MPa
Yield Strength	835 MPa min.
Elongation	9% min.
Reduction in Area	40% min.
Hardness (HB)	217 - 269

 

The mechanical properties of 40CrMn steel make it suitable for applications that require high strength and toughness. The steel has good fatigue resistance and can withstand repeated loading and unloading. It also has good wear resistance, making it suitable for parts that are subjected to friction and abrasion.

 

Heat Treatment:
40CrMn steel can be heat treated to improve its mechanical properties. The most common heat treatment processes include quenching and tempering.

 

Quenching: Heating the steel to a high temperature (usually around 850°C) and then rapidly cooling it in oil or water. This process hardens the steel and increases its strength and hardness.

Tempering: Heating the quenched steel to a lower temperature (usually around 550°C - 650°C) and holding it for a certain period of time. This process reduces the brittleness of the steel and improves its toughness and ductility.

 

Applications:
40CrMn steel is widely used in the following applications:

 

Automotive industry: For gears, shafts, and other transmission components.

Machinery manufacturing: For parts such as crankshafts, connecting rods, and gears.

Mining and construction equipment: For components that are subjected to heavy loads and wear.

Tool and die making: For cutting tools and molds.

 

In conclusion, 40CrMn steel is a versatile alloy steel that offers good mechanical properties and hardenability. Its chemical composition and heat treatment capabilities make it suitable for a wide range of applications in various industries.

 

Why Choose Us?

We take pride in our ability to provide custom solutions for our customers' unique needs.

We analyze and compare the previous products and the current technical situation of our 40crmn steel, and develop new technical specifications and processes.

Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.

We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.

We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.

We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.

Our factory is committed to upholding the highest standards of safety and quality.

All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.

Our Cold-rolled Steel products are known for their durability and reliability.

Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

Hot Tags: 40crmn steel, China 40crmn steel suppliers, factory, S31803, C62300, C6280, SUS403, 1 4404, C68800