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Database: 189760 (25 Oct 2025)
TB/T 3212.3-2009 English PDF
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TB/T 3212.3-2009
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Metallographic atlas for metallographic microstructure examination of low alloy cast steel for rolling stock. Part 31: Grades E cast steel
Obsolete
TB/T 3212.3-2009
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Basic data
Standard ID
TB/T 3212.3-2009 (TB/T3212.3-2009)
Description (Translated English)
Metallographic atlas for metallographic microstructure examination of low alloy cast steel for rolling stock. Part 31: Grades E cast steel
Sector / Industry
Railway & Train Industry Standard (Recommended)
Classification of Chinese Standard
S30
Classification of International Standard
45.060.01
Word Count Estimation
12,166
Date of Issue
2009-11-11
Date of Implementation
2010-05-01
Quoted Standard
TB/T 3212.1-2009; TB/T 3212.2-2009
Regulation (derived from)
Industry standard filing Notice 2010 No. 8 (No. 128 overall)
Issuing agency(ies)
Ministry of Railways of the People's Republic of China
Summary
This standard specifies the cast (ZG25MnCrNiMo) metallographic examination of the technical requirements, test methods, inspection rules, microstructure and ratings chart. This standard applies after the E-Class quenched steel (ZG25MnCrNiMo) metallographic examination.