YS/T 659-2024 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 659-2024	RFQ	ASK	3 days	(Tungsten and tungsten alloy processing product grades and chemical composition)	Valid
YS/T 659-2007	239	Add to Cart	3 days	Designation and composition of tungsten and tungsten alloy wrought product	Obsolete

Basic data

Standard ID: YS/T 659-2024 (YS/T659-2024)
Description (Translated English): (Tungsten and tungsten alloy processing product grades and chemical composition)
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H63
Classification of International Standard: 77.120.99
Date of Issue: 2024-10-24
Date of Implementation: 2025-05-01
Older Standard (superseded by this standard): YS/T 659-2007
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the brand naming rules, brand and chemical composition, chemical composition analysis and analysis report of tungsten and tungsten alloy processed products. This standard is applicable to various tungsten and tungsten alloy products processed by powder metallurgy and pressure processing.

YS/T 659-2007: Designation and composition of tungsten and tungsten alloy wrought product

---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.
Designation and composition of tungsten and tungsten alloy wrought product ICS 77.120 H63 People's Republic of China Nonferrous Metals Industry Standard Tungsten and tungsten alloy grades and chemical composition of processed products Posted 2007-11-14 2008-05-01 implementation National Development and Reform Commission issued

Foreword

Appendix A of this standard is the data appendix. This standard by the National Standardization Technical Committee of non-ferrous metals and centralized. This standard by the Baoji Titanium Group Co., Ltd. is responsible for drafting. The main drafters. Zhang Pinghui, Cuiyao Guo, Wang Dingchun, Huang Yongguang, Lixian Jun, Fengjun Ning. This standard by the National Standardization Technical Committee is responsible for interpretation of non-ferrous metals. Tungsten and tungsten alloy grades and chemical composition of processed products

1 Scope

This standard specifies grades, chemical composition and chemical composition of tungsten and tungsten alloy processing product analysis requirements. This standard applies to all kinds of pressure processing and metallurgy of tungsten and tungsten alloy products (including sintered blank).

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 4324 (all parts), chemical analysis of tungsten GB/T 8170 numerical rounding rules

3 grades naming rules

3.1 W with pure tungsten grades plus Arabic numerals, Arabic numerals which the chemical composition of classification. 3.2 doped silicon, aluminum, potassium tungsten grades in WAl plus Arabic numerals, Arabic numerals which indicate the different high-temperature properties. 3.3 W tungsten alloy grades to add alloying element symbols and Arabic numerals, Arabic numerals which content of alloying elements (mass fraction).

4 Grades and chemical composition

4.1 Grades and chemical composition of tungsten and tungsten alloy products should meet the requirements in Table 1. 4.2 When the demand side, the chemical composition of some grades have special requirements, shall be determined by mutual agreement. Table 1% Trademark Principal Component (mass fraction) of impurity elements (mass fraction), not more than W Ce Th Re Al Ca Fe Mg Mo Ni Si C N O W1 Balance - - - 0.0020.0030.0050.0020.0100.0030.0030.0050.0030.005 W2 Balance - - - 0.0040.0030.0050.0020.0100.0030.0050.0080.0030.008 WAl1, WAl2 Balance - - - - 0.0050.0050.0050.0100.005 - 0.0050.003 - WCe0.8 margin 0.65 ~ 0.98 - - - 0.0050.0050.0050.0100.0030.0050.0100.003 - WCe1.1 margin 1.06 ~ 1.38 - - - 0.0050.0050.0050.0100.0030.0050.0100.003 - WCe1.6 margin 1.47 ~ 1.79 - - - 0.0050.0050.0050.0100.0030.0050.0100.003 - WCe2.4 margin 2.28 ~ 2.60 - - - 0.0050.0050.0050.0100.0030.0050.0100.003 - ......

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