GB/T 34200-2017 in English

1. Background and significance of standard formulation

GB/T 34200-2017 "Cold-rolled stainless steel sheets and strips for building roofs and curtain walls" is an important standard for China's construction industry. It mainly regulates cold-rolled stainless steel products suitable for building roofs and curtain wall projects. This standard is under the jurisdiction of the National Technical Committee for Steel Standardization and was issued and implemented in 2017.

With the development of my country's construction industry, the demand for high-quality building materials continues to increase. In order to meet the technical requirements of stainless steel materials for building roofs and curtain walls and ensure the quality and safety of the project, the formulation of this standard has become an inevitable choice. This standard has been revised on the basis of GB/T3280-2015, and the chemical composition range has been adjusted for different use environments.

2. Comparison of standard frameworks

3. Detailed explanation of technical requirements

According to GB/T34200-2017, cold-rolled stainless steel plates and strips for building roofs and curtain walls need to meet the following technical requirements:

• Grade and chemical composition: must comply with the provisions of Table 2, Table 3, and Table 4.
• Delivery status: can be heat treated and pickled or similarly treated after cold rolling.
• Mechanical properties: according to the specific grade and use environment, it must meet the technical indicators specified in Table 5, Table 6, and Table 7.
• Corrosion resistance: can be tested according to GB/T10125 or GB/T24195.

4. Implementation suggestions and precautions

To ensure the effective implementation of GB/T34200-2017, the following measures are recommended: