来介绍这个标准
Overview of GB 1501/3-1990 Pressure Steel Thick Plate, Thin Plate and Strip Part 3: Specification for Heat and Corrosion Resistant Steel
GB 1501/3-1990 is a technical specification related to pressure steel thick plate, thin plate, and strip products. The standard was published by the China State Bureau of Quality and Technical Supervision in 1990 in order to help provide flawless steel solutions. With its main focus on the development and improvement of pressure steel thick plate, thin plate, and strip products, GB 1501/3-1990 sets forth a series of technical requirements, performance tests and inspection rules in order to provide quality assurance for such products during the manufacturing process and usage.
Scope
This part of GB 1501/3-1990 applies to hot-formed or cold-formed pressure steel thick plate, thin plate, and strip products manufactured by the rolling, cutting, and welding processes. It is specified under the categories of carbon steel, alloy steel, chromium molybdenum steel, aluminum oxide-resistant stainless steel, and double-metal-clad steel materials. This part does not apply to other steel products such as rods, tubes, welded shapes, and special steel products.
Classification
The standard divides the steel materials into three categories: carbon steel, alloy steel, and chromium molybdenum steel. Carbon steel includes carbon structural steel, carbon tool steel, and carbon special-purpose steel for pressure vessels.
Alloy steel includes alloy structural steel, alloy tool steel, and alloy special-purpose steel for pressure vessels. Chromium molybdenum steel includes chromium molybdenum structural steel and chromium molybdenum special-purpose steel for pressure vessels.
Technical Requirements
The technical requirements of this standard are as follows:
1. The minimum yield strength of the material should be not less than 250 MPa.
2. The tensile test should be carried out according to the appropriate method.
3. The impact energy should be not less than the specified value at room temperature.
4. The electric arc welding should be carried out according to the provisions of HB 5274-85.
5. The surface of steel plates should be free from rust.
6. The chemical composition should meet the requirements of GB 1501/3-1990.
7. Mechanical properties should meet the requirements of GB 1501/3-1990.
Inspection Rules
In order to ensure the product quality of pressure steel thick plate, thin plate and strip products, the standard provides a series of inspection rules. These rules include inspection of the surface and internal defects of steel plates, ultrasonic examination, and radiographic examination for steel plates of medium and high thickness.
Conclusion
GB 1501/3-1990 is an important technical specification related to pressure steel thick plate, thin plate, and strip products. The standard defines a series of technical requirements, performance tests and inspection rules in order to provide quality assurance for such products during the manufacturing process and usage. It is also a guidance for manufacturers and users towards the understanding and use of the products.
