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GB/T 6896-2007 English PDF

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GB/T 6896-2007: Niobium bars
Status: Valid

GB/T 6896: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 6896-2007English159 Add to Cart 3 days [Need to translate] Niobium bars Valid GB/T 6896-2007
GB/T 6896-1998English199 Add to Cart 2 days [Need to translate] Niobium bars Obsolete GB/T 6896-1998
GB/T 6896-1986EnglishRFQ ASK 3 days [Need to translate] Niobium bars Obsolete GB/T 6896-1986

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Basic data

Standard ID GB/T 6896-2007 (GB/T6896-2007)
Description (Translated English) Niobium bars
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H63
Classification of International Standard 77.150.99
Word Count Estimation 6,644
Date of Issue 2007-11-23
Date of Implementation 2008-06-01
Older Standard (superseded by this standard) GB/T 6896-1998
Quoted Standard GB/T 15076
Regulation (derived from) National Standard Approval Announcement 2007 No.12 (Total No.112)
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 requirements of Article niobium, test methods, inspection rules, signs, packaging, transport, storage and a purchase order (or contract) content. This standard also applies to carbon heat source Preparation of niobium strip. Products for the production of niobium strip, superconducting materials, temperature alloy steel smelting additives and electronic bombardment of niobium and niobium alloy ingots and other purposes.

GB/T 6896-2007: Niobium bars

---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.
Niobium bars ICS 77.150.99 H63 National Standards of People's Republic of China Replacing GB/T 6896-1998 Niobium Article Posted 2007-11-23 2008-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 6896-1998 "niobium bar." This standard compared with GB/T 6896-1998, the main changes are as follows. --- Canceled Nb-2 grades; --- The Nb-01, Nb-1 grades to TNb1, TNb2, while this part of the impurities in two grades were adjusted. The standard proposed by China Nonferrous Metals Industry Association. This standard Nonferrous Metals by the National Standardization Technical Committee. This standard by Zhuzhou Cemented Carbide Group Co., Ltd. is responsible for drafting. This standard by the Ningxia Orient Tantalum Industry Co., Ltd. participated in the drafting. The main drafters of this standard. Wang Fei, Wang Zhong, Liu Tiemei, Wang Shiguang. This standard replaces the standards previously issued as follows. --- GB/T 6896-1986, GB/T 6896-1998. Niobium Article

1 Scope

This standard specifies the requirements, test methods, inspection rules of the niobium, signs, packaging, transportation, storage, and purchase order (or contract) content. This standard applies to Carbon Thermal Reduction of niobium strip. Products for the production of niobium powder, superconducting materials, high temperature alloy additives and electronics boom Click melting Nb and Nb alloy ingots and other purposes.

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 15076 (all parts), chemical analysis of tantalum and niobium

3 Requirements

3.1 Categories According to the chemical composition of different products, divided into TNb1, TNb2 two grades. 3.2 all grades shall conform to the chemical composition of the product specified in Table 1. Table 1 mass fraction /% chemical composition Grades TNb1 TNb2 Impurity content of not more than Ta 0.10 0.15 O 0.05 0.15 N 0.03 0.05 C 0.02 0.03 Si 0.003 0.0050 Fe 0.0050 0.02 W 0.005 0.01 Mo 0.0050 0.0050 Ti 0.0050 0.01 Al 0.0030 0.0050 Cu 0.0020 0.0030 Cr 0.0050 0.0050 Ni 0.005 0.010 Zr 0.020 0.020 3.3 length not less than 300mm (according to user requirements can be cut), product cross-sectional dimensions of not less than 14mm × 14mm. 3.4 in the lengthwise direction of the deflection is not more than 1%. 3.5 products may not have surface oxidation, carburization, bubbling and contamination-free sandwich section.

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Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6896-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.