Faithin Omaha eBook Collection

Download or read book GB/T 9799-2024 Translated English of Chinese Standard (GB/T 9799-2024, GBT9799-2024) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-10-22 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document specifies the requirements for treated zinc electroplated coatings on steel, including the information to be provided by the purchaser to the supplier and the requirements for heat treatment before and after electroplating. This document does not specify the surface condition of the base metal before zinc electroplating, but defects on the base metal surface will have an adverse effect on the appearance and performance of the coating. This document applies to treated zinc electroplated coatings on iron or steel. This document does not apply to: -- zinc electroplated coatings on unformed steel sheets, strips and wires; -- zinc electroplated coatings for tightly wound springs; -- zinc electroplated coatings for non-protective decorative purposes. The thickness of the electroplating coating on threaded parts can be limited by thread grade or assembly size requirements.