Why should you use solid steel SCM440H in manufacturing machinery?

Manufacturing machines is an industry that is constantly evolving in today's society. Therefore, the selection of materials is a very important factor. Among the steels used to manufacture machines, it is impossible not to mention SCM440H steel. So why should we use solid steel SCM440H in manufacturing?

1. Requirements for materials for manufacturing machines

The basic properties of machine parts are their ability to withstand static and dynamic loads. Therefore the basic requirement is high strength and good toughness in accordance with the condition of the load.

- High strength will help create stronger, lighter and more compact machines and lower costs. To achieve this requirement must use appropriate steel and heat treatment guaranteed. However, in machine manufacturing, in addition to durability, the limit of flow is increasingly important, because the assembly parts do not allow plastic deformation when working.

- Impact resistance is important for dynamic load-bearing components due to the sudden increase in load. It is this indicator that determines the reliability of the work, it ensures it is hard to break brittle, special requirements are important for the means of transport.

In addition to the two basic criteria on many parts, it also requires high surface hardness to ensure wear resistance when working in friction or friction. Many machine parts that work under varying loads (cycles, gears, etc.) require high fatigue limits. So, what are the properties of SCM440H steel to help it meet those requirements or why should SCM440H steel be used in machine manufacturing?

2. Characteristics of steel SCM440H

a. Chemical composition of steel SCM440H

Chromium accounts for the highest proportion of the components that make up SCM440H steel, giving SCM440H steel a high hardness and durability. In addition, the composition of Manganese and Carbon is also a decisive factor to the hardness of steel.

b. Physical properties

- Tensile strength: 1080N / mm2;

- Flow limit: 930N / mm2;

- Relative elongation: 12%.

c. From the chemical components and physical properties mentioned above, SCM440H steel can fully meet the needs of the manufacturing industry:

- High flexibility due to high content of chromium, carbon, manganese;

- No deformation during production, hard to crack when impacted;

- Durable, able to withstand high loads;

- Less oxidative due to chromium, which contributes to longer product life.

Why should you use SCM440H steel in manufacturing machinery?

3. Compare SCM440H steel with carbon steel lines: S45C, S50C, S55C

Compared with S45C, S50C, S55C steel lines, SCM440H steel contains lower carbon content. That does not mean SCM440H steel is not as durable as carbon steel. In contrast, because of the high carbon content, these steels are easy to brittle and break. If the amount of carbon is reduced, the above steels are softer, easier to process but do not meet the demand for load bearing capacity. Solving those problems, SCM440H steel has both high strength, durability, and rigidity. It seems to be meant for machine building and mechanical engineering.

4. Other applications of SCM440H steel in addition to machine manufacturing

The construction steel of the SCM440H is suitable for use as machine parts subjected to load, impact and abrasion such as gears, motor shaft.

However, in reality, SCM440H steel is also popularly used in the manufacture of automobile engines, motorcycles, and industrial machine parts.Besides, SCM440H steel is also suitable for making steel to make plastic molds, electronic components.

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