In screw production, carbon steel is one of the most commonly used materials due to its good mechanical properties and reasonable cost. The types of carbon steel typically used in screw manufacturing can be classified based on their carbon content. Below are the common types of carbon steel:
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Low Carbon Steel (Low Carbon Steel)
- Carbon content: Typically under 0.25%.
- Characteristics: This steel is soft and easy to process, but its mechanical strength is lower compared to steels with higher carbon content.
- Applications: It is often used to manufacture light screws with relatively low strength requirements, such as screws used in furniture manufacturing, simple machinery, etc.
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Medium Carbon Steel (Medium Carbon Steel)
- Carbon content: Around 0.25% - 0.60%.
- Characteristics: This steel offers a combination of ductility and better load-bearing capacity than low carbon steel. However, it can be more difficult to process due to its higher hardness.
- Applications: It is used to produce screws that require higher strength, such as those used in mechanical, automotive, or industrial applications.
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High Carbon Steel (High Carbon Steel)
- Carbon content: Above 0.60%.
- Characteristics: High carbon steel has very high hardness and strength but is more prone to breaking and is harder to process. It needs heat treatment to achieve optimal properties.
- Applications: This type of steel is commonly used for screws that require particularly high strength, such as screws used in construction or applications with heavy loads.
Common types of carbon steel used in screw production:
- SAE 1018 Steel (Low Carbon Steel): Widely used for manufacturing simple screws with high ductility.
- SAE 1045 Steel (Medium Carbon Steel): Used to produce screws that require higher strength and load-bearing capacity.
- SAE 1095 Steel (High Carbon Steel): Typically used when screws need to have high hardness and load-bearing capacity.
