Download or read book GB T 9439 2023 Translated English of Chinese Standard GB T 9439 2023 GBT9439 2023 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-04-26 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document stipulates the designations, production methods and chemical composition, technical requirements, specimen preparation, test methods, inspection rules and markings, quality certificates, protection, packaging, storage and transportation of gray iron casting. This document is applicable to ordinary gray iron castings, which are cast in sand molds or molds with thermal conductivity equivalent to that of sand molds. Gray iron castings which are cast in other molds can be used with reference to it.