GB/T 25748-2010 English PDF

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GB/T 25748-2010: Die casting magnesium alloys
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25748-2010	139	Add to Cart	3 days	Die casting magnesium alloys	Valid

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Basic data

Standard ID: GB/T 25748-2010 (GB/T25748-2010)
Description (Translated English): Die casting magnesium alloys
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J31
Classification of International Standard: 77.120.20
Word Count Estimation: 6,648
Date of Issue: 2010-12-23
Date of Implementation: 2011-06-01
Quoted Standard: GB/T 13748.1; GB/T 13748.4; GB/T 13748.8; GB/T 13748.9; GB/T 13748.10; GB/T 13748.12; GB/T 13748.14; GB/T 13748.15
Adopted Standard: ASTM B93/B93M-07, MOD
Regulation (derived from): National Standard Approval Announcement 2010 No.10 (Total No.165)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the die-cast magnesium alloy grades and code, technical requirements, test methods and inspection rules. Packaging, transportation and storage requirements. This standard applies to die-cast magnesium alloy material.

GB/T 25748-2010: Die casting magnesium alloys

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Die casting magnesium alloys ICS 77.120.20 J31 National Standards of People's Republic of China Magnesium alloy die-casting Issued on. 2010-12-23 2011-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts ASTMB93/B93M-07 "sand casting, metal-casting and die casting magnesium alloy ingots standards." This standard and ASTMB93/B93M-07 compared to, there is a major difference in the technical content. --- Not adopted ASTMB93/B93M-07 references to our standards in place; --- This standard is based on ASTMB93/B93M-07 material grades, an increase of YZMgAl4Si (S), YZMgAl2Mn, YZMgAl8Zn1 other three kinds of material grades and their corresponding chemical composition and mechanical performance requirements; and deleted YZMgAl5Sr2 YZMgAl6Sr2 two materials grades. Appendix A of this standard is an informative annex This standard by the National Standardization Technical Committee Cast (SAC/TC54) and focal points. This standard is drafted by. Shenyang Foundry Research Institute. Participated in the drafting of this standard. FAW Foundry Co., Ltd., Dongfeng (Shiyan) Nonferrous Casting Co., Ltd., Chongqing Magnesium Technology Co. Shares the company. The main drafters of this standard. Dramatic Liang, Liu Haifeng, Yang Zhao Ling, Liao Yachuan, Shangshou Liang. Magnesium alloy die-casting

1 Scope

This standard specifies the grade die-cast magnesium alloy and code, technical requirements, test methods and inspection rules, packaging, transportation and storage Claim. This standard applies to die-cast magnesium alloy.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 13748.1 magnesium and magnesium alloys Determination of aluminum content analysis method (GB/T 13748.1-2005, ISO 791. 1973, NEQ) GB/T 13748.4 magnesium and magnesium alloys - Determination of manganese content analysis methods periodate spectrophotometric method (GB/T 13748.4- 2005, ISO 2353. 1972, NEQ) GB/T 13748.8 analysis of magnesium and magnesium alloys rare earth content - Gravimetric method (GB/T 13748.8-2005, ISO 2355. 1972, NEQ) GB/T 13748.9 Determination of magnesium and magnesium alloys analysis of iron content phenanthroline spectrophotometric method (GB/T 13748.9- 2005, ISO 792. 1973, NEQ) GB/T 13748.10 magnesium and magnesium alloys - Analysis of silicon content - Molybdenum blue spectrophotometric method (GB/T 13748.10- 2005, ISO 1975. 1973, NEQ) Determination of GB/T 13748.12 analysis of magnesium and magnesium alloys of copper content neocuproine spectrophotometry GB/T 13748.14 magnesium and magnesium alloy chemical analysis method for determination of nickel dimethylglyoxime spectrophotometric method (GB/T 13748.14- 2005, ISO 4058. 1977, NEQ) GB/T 13748.15 magnesium and magnesium alloys - Determination of zinc content analysis method (GB/T 13748.15-2005, ISO 4194. 1981, NEQ)

3 alloy grades and code

3.1 Representation of alloy grades Magnesium Alloy Die Casting is the chemical symbol for magnesium and the main alloying element composition. Behind the main alloying elements have now expressed their nominal mass Fractional numbers (nominal mass fraction rounded rounded average value for the mass fraction of the element). Alloy preceded by the letter in front of "YZ" ( "Y" and "Z" are "pressure" and "cast" the first letter of the word pinyin) is expressed as Die-casting alloy. 3.2 alloy code representation Alloy code number, "YM" ( "Y" and "M" are "pressure" and "magnesium" the first letter of the word pinyin) represents magnesium alloy die-casting, After YM The first number represents 1,2,3 MgAlSi, MgAlMn, MgAlZn series alloys, on behalf of the alloy code. YM after the second, Thirty-two digit order numbers. 4. Technical Requirements Chemical composition of magnesium alloy die-casting 4.1 Chemical composition of the alloy can comply with the requirements of Table 1. ......

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