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GB/T 7738-2008: Notations for designation of ferroalloys
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GB/T 7738-1987	English	199	Add to Cart	2 days [Need to translate]	Notations for designation of ferroalloys

GB/T 7738-2008: Notations for designation of ferroalloys

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Notations for designation of ferroallys ICS 77.100 H42 National Standards of People's Republic of China Replacing GB/T 7738-1987 Ferroalloy product grades representation Posted 2008-08-05 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 7738-1987 "ferroalloy product grades that way." This standard and GB/T 7738-1987 comparison, the main changes are as follows. --- Modify the basic principles of grades that way; --- Increased Table 2 Product names, uses, properties and process methods that symbol; --- Complement the part of the grades that way; --- Added Appendix A. Appendix A of this standard is an informative annex. The standard proposed by China Iron and Steel Association. This standard by the National Standardization Technical Committee of pig iron and ferroalloy. This standard was drafted. Metallurgical Industry Information Standards Institute. The main drafters. Zhang Rui Hong, Zhao Fuen. This standard was first released in March 1987. Ferroalloy product grades representation

1 Scope

This standard specifies the basic principles and methods of ferroalloy product brands represented. This standard applies to the preparation of ferroalloy product brands. Basic Principles of grades that 2.1 Where the inclusion of national standards and industry-standard alloy products are prepared should this standard grades. Ferroalloy product grades representation 2.2 standard is not specified, shall be prepared in accordance with the principles of this standard. 2.3 standard uses phonetic alphabet, chemical element symbols, Arabic numerals and letters of the alphabet represents a combination of methods ferroalloy products Grades. Common chemical element symbols in Table 1. Table 1 Common chemical element symbol The chemical symbol for the element name Element name the chemical symbol for the chemical symbol for the element name Iron Fe lithium Li samarium Sm Manganese (Mn) Beryllium Be actinium Ac Chromium Cr magnesium Mg boron B Ni Ni carbon C calcium Ca Cobalt Co zirconium (Zr) Si Si Tin copper Cu Sn selenium Se Tungsten W lead Pb Te Te Mo Mo Bi Bi arsenic As Cesium Cs alum V S S Titanium Ti Ba Ba P P Al Al La La nitrogen N Niobium Nb cerium Ce oxygen O Ta Tantalum Neodymium Nd hydrogen H NOTE. Mixed rare earth element represented by the symbol "RE". 2.3.1 using Pinyin letters product names, uses, process methods and properties, usually selected from among the representatives of the Chinese phonetic characters Take, take the first letter in principle. When taken with another product repeated letters, change takes a second or third letter letter. In principle, only take A letter, usually not more than two. 2.3.2 Product names, uses, properties and process methods that symbol in Table 2. 2.4 ferroalloy product brands in order to sort, if not necessary, you can omit the corresponding portion. Unless otherwise specified, the Chinese phonetic alphabet, chemical There should be no gaps between the element symbols, Arabic numerals and letters of the alphabet. ...