MATERIALS USED FOR SCREW PRODUCTION
The ISO metric system is an international standard for screws that defines dimensions, tolerances, and material specifications. ISO screws are widely used in industrial and commercial applications due to their standardization, which ensures interchangeability and reliability. This document examines the most common materials used in the production of ISO screws, their properties, and their specific applications.
Materials Used
Carbon Steel
Carbon steel is one of the most commonly used materials for screw production. It offers good strength and hardness, making it ideal for general applications.
Properties of Carbon Steel:
| Property | Value |
| Tensile Strength | 400 - 550 MPa |
| Hardness (Rockwell Scale) | 50 - 60 HRC |
| Density | 7.85 g/cm³ |
Stainless Steel
Stainless steel is chosen for screws that require corrosion resistance. It is widely used in marine, medical, and food industry applications.
Properties of Stainless Steel:
| Property | Value |
| Tensile Strength | 500 - 750 MPa |
| Hardness (Rockwell Scale) | 70 - 80 HRC |
| Density | 8.0 g/cm³ |
Titanium Alloys
Titanium alloys are used for applications requiring high strength and low weight. They are common in the aerospace industry and high-performance applications.
Properties of Titanium Alloys:
| Property | Value |
| Tensile Strength | 900 - 1100 MPa |
| Hardness (Rockwell Scale) | 30 - 40 HRC |
| Density | 4.5 g/cm³ |
Material Applications
Industrial Sector
- Carbon Steel: Used in structural and mechanical applications, where strength is crucial.
- Stainless Steel: Preferred for corrosive environments and applications requiring sterility, such as in the food and medical industries.
Aerospace and High-Performance Sector
- Titanium Alloys: Chosen for critical components requiring lightweight and high strength, such as in aircraft and spacecraft.
Other Materials Used
In addition to the materials mentioned above, other alloys and composite materials are used for specific applications, such as aluminum alloys for lightweight applications and plastic materials for non-conductive screws.
Composite Material Table:
| Material | Main Properties | Applications |
| Aluminum Alloys | Lightweight, Moderate Strength | Electronic components, Lightweight structures |
| Plastic Materials | Non-conductive, Corrosion-resistant | Electronics, Marine applications |
Conclusion
In summary, the choice of material for ISO screw production depends on the specific application requirements. The standardization of the ISO metric system ensures that screws are interchangeable and reliable, regardless of the material used. Carbon steel, stainless steel, and titanium alloys are among the most common materials, each offering distinct characteristics and advantages.