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YS/T 884-2013: Niobium ingot
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
YS/T 884-2013	English	189	Add to Cart	3 days [Need to translate]	Niobium ingot

YS/T 884-2013: Niobium ingot

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Niobium ingot ICS 77.150.99 H63 People's Republic of China Nonferrous Metals Industry Standard Niobium ingot Issued on. 2013-04-25 2013-09-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This standard was drafted. Ningxia Orient Tantalum Industry Co., Ltd., China Nonferrous Metals Industry Standards and Metrology Quality Research Institute, Western Materials CO., LTD. The main drafters of this standard. Baizhang Jun, Jie Weiping, Wang Li, Zhang Xianming, Huang Quanheng, Ecological and Zhang Jing, Ding Xu. Niobium ingot

1 Scope

This standard specifies the requirements, test methods, inspection rules niobium ingot, signs, packaging, transportation, storage and quality certificate and contract (or Orders) content. This standard applies to the production of vacuum electron beam melting preparation of niobium ingot, the niobium ingot processed products can be used as raw materials or other alloys Tim Additives.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 15076 (all parts), chemical analysis of tantalum and niobium YS/T 656 niobium and niobium alloy grades and chemical composition of processed products

3 Requirements

3.1 Categories Depending on the chemical composition of products, divided into NbT, Nb1, Nb2 three grades. 3.2 Chemical composition NbT chemical composition of the product shall comply with the requirements in Table 1. Nb1, Nb2 chemical composition of the product shall comply with YS/T 656's. Table 1 Grade NbT Main elements of the mass fraction /% Nb margin Impurity elements mass fraction /% O 0.008 C 0.002 N 0.004 H 0.001 Fe 0.002 Ni 0.001 Cr 0.001 Ti 0.001 Ta 0.04 Cu 0.001 ...