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YS/T 656-2015 PDF English

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YS/T 656-2015: Designation and composition of wrought niobium and niobium alloy
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YS/T 656: Historical versions

Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
YS/T 656-201590 Add to Cart Auto, 9 seconds. Designation and composition of wrought niobium and niobium alloy Valid
YS/T 656-2007199 Add to Cart 2 days Designation and compostition of wrought niobium and niobium alloy Obsolete

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YS/T 656-2015: Designation and composition of wrought niobium and niobium alloy

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YST656-2015
YS NONFERROUS METAL INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.99 H 63 YS/T 656-2007 Designation and composition of wrought niobium and niobium alloy Issued on: APRIL 30, 2015 Implemented on: OCTOBER 1, 2015 Issued by. Ministry of Industry and Information Technology of the People’s Republic of China

Table of Contents

Foreword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Designations and chemical compositions ... 4 4 Chemical composition analytical method ... 5

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces YS/T 656-2007, Designation and composition of wrought niobium and niobium alloy. Compared with YS/T 656-2007, the major changes of this Standard are as follows. -- 3 designations and their requirements are added, including NbT, NbW5-1 and NbW5-2; -- the normative references are modified; -- relevant specifications for other elements are modifies. This Standard was proposed by and shall be under the jurisdiction of Technical 243 on Nonferrous Metals of Standardization Administration of China (SAC/TC 243). The drafting organizations of this Standard. Baoti Group Co., Ltd., Western Metal Materials Co., Ltd., Baoji Titanium Industry Co., Ltd., Ningxia Orient Tantalum Industry Co., Ltd., China Nonferrous Metal Industry Institute of Standards, Metrology and Quality. The main drafters of this Standard. Feng Junning, Ma Zhongxian, Li Xianjun, Bao Hongjun, Hu Zhijie, Yang Rong, Bai Zhangjun, Yang Junhong, Wu Yanhua. The previous edition of the standard replaced by this Standard is as follows. -- YS/T 656-2007. Designation and composition of wrought niobium and niobium alloy

1 Scope

This Standard specifies the designation, chemical composition etc. of niobium and niobium alloy. This Standard applies to all types of wrought niobium and niobium alloy products (including cast ingots and semi-finished products).

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to This Standard. GB/T 15076 (all parts), Methods for chemical analysis of tantalum and niobium

3 Designations and chemical compositions

3.1 Designations The products are classified into 10 designations, including NbT, Nb1, Nb2, NbZr1, NbZr2, FNb1, FNb2, NbHf10-1, NbW5-1 and NbW5-2. 3.2 Chemical compositions The product designations and chemical compositions shall be as specified in Table 1. 3.3 Other elements 3.3.1 Other elements refer to the inherent microelements in the production of niobium and niobium alloy, other than the elements artificially added. 3.3.2 Other elements generally include Cu, Ti, Ta, Fe, Si, W, Ni, Mo, Mn, Cr, Al, Hf, S, P, Sn (excluding the alloy elements in designations). When the user has other particular requirements, they shall be agreed on by both sides and indicated in order (or contract). ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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