YS/T 1168-2016 English PDF

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YS/T 1168-2016: Germanium alloy for jewelry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 1168-2016	139	Add to Cart	3 days	Germanium alloy for jewelry	Valid

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Basic data

Standard ID: YS/T 1168-2016 (YS/T1168-2016)
Description (Translated English): Germanium alloy for jewelry
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H66
Classification of International Standard: 77.150.99
Word Count Estimation: 6,650
Date of Issue: 2016-07-11
Date of Implementation: 2017-01-01
Regulation (derived from): Notice of the Ministry of Industry and Information Technology (2016 No. 37)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificate and order form (or contract) of the bismuth alloy for jewelry.

YS/T 1168-2016: Germanium alloy for jewelry

---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.
Germanium alloy for jewelry ICS 77.150.99 H66 People's Republic of China Nonferrous Metals Industry Standard Jewelry alloy for jewelry Released on.2016-07-11 2017-01-01 implementation Ministry of Industry and Information Technology of the People's Republic of China

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This standard was drafted. Yunnan Tianhao Rare Precious Metal Co., Ltd., Kunming Metallurgical Research Institute, Kunming Haoke Medical Technology Co., Ltd. Yunnan Xinyuan Haoye Technology Co., Ltd. The main drafters of this standard. Sun Haoran, Chen Zhizuo, Li Gang, Huang Yunfeng, Xie Zhenyu, Yuan Wei, Hu Wenxiong, Bao Mingzhu, Ren Shuopeng. Jewelry alloy for jewelry

1 Scope

This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation and storage of niobium alloys for jewelry (hereinafter referred to as niobium alloys). Deposit, quality certificate and order form (or contract) content. This standard applies to the production of enamel alloys for jewelry.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 228.1 tensile testing of metallic materials - Part 1

3 requirements

3.1 Chemical composition The chemical composition of niobium alloys shall comply with the requirements of Table 1. When the demander has special requirements for chemical composition, it shall be determined by both parties. Indicated in the order form (or contract). Table 1 Chemical composition Code Chemical composition (mass fraction) /% Ge Fe Cr Cu Ni Ge-10 9.5~10.5 59.5~60.5 9.5~10.5 9.5~10.5 7.5~8.5 3.2 Mechanical properties The tensile mechanical properties at room temperature of niobium alloys are to comply with the requirements of Table 2. Table 2 Mechanical properties status Tensile strength Rm/MPa Elongation after break A50mm/% not less than Casting state 110 2.0 3.3 sweat resistance The niobium alloy should be free from discoloration when it is eroded by sweat. ......

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