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GB/T 24485-2009: Niobium carbide powder
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24485-2009 | English | 139 |
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Niobium carbide powder
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GB/T 24485-2009
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Basic data | Standard ID | GB/T 24485-2009 (GB/T24485-2009) | | Description (Translated English) | Niobium carbide powder | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H71 | | Classification of International Standard | 77.160 | | Word Count Estimation | 6,687 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2010-06-01 | | Quoted Standard | GB/T 3249; GB/T 5314; GB/T 15076; GB/T 20508-2006 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | 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 for niobium carbide powder, test methods, inspection rules and signs, packaging, transport, storage and purchase order (or contract) content. This standard applies to niobium oxide (or) obtained niobium carbide carbide powder production of cemented carbide and other additives used. | GB/T 24485-2009: Niobium carbide powder---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 carbide powder
ICS 77.160
H71
National Standards of People's Republic of China
Niobium carbide powder
Posted 2009-10-30
2010-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard proposed by China Nonferrous Metals Industry Association.
This standard Nonferrous Metals by the National Standardization Technical Committee.
This standard is drafted by. Jiujiang non-ferrous metal smelters.
Participated in the drafting of this standard. Ningxia Orient Tantalum Industry Co., Ltd.
The main drafters. Zhang Hao, Zhang Junfeng, Liaoxin Geng, Wang Zhong, Zhu Fang.
Niobium carbide powder
1 Scope
This standard specifies requirements for niobium carbide powder, test methods, inspection rules and signs, packaging, transportation, storage and purchase order (or contract)
content.
This standard applies to niobium oxide (or niobium powder) obtained by carbonization of niobium carbide powder. For the production of carbide products and other additives used.
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 3249 Determination of metals and their compounds Fisher particle size powder
GB/T 5314 sampling method powder metallurgy
GB/T 15076 (all parts), chemical analysis of tantalum and niobium
GB/T 20508-2006 tantalum carbide powder
3 Requirements
3.1 Categories
3.1.1 chemical composition is divided into three grades. FNbC-1, FNbC-2, FNbC-3.
3.1.2 Products by size into three sizes. 10,15,30.
3.2 Chemical composition
3.2.1 The chemical composition of various grades of products should meet the requirements in Table 1.
Table 1 mass fraction /%
Item FNbC-1 FNbC-2 FNbC-3
NbC ≥99.5 ≥99.0 ≥99.0
Total carbon 11.0 ± 0.4 11.0 ± 0.4 11.0 ± 0.4
Impurity content,
no greater than
0.15 0.15 0.15 free carbon
Ta 0.5 1.0 1.0
Al 0.005 0.005 0.01
Ca 0.005 0.01 0.015
Co 0.05 0.1 0.15
Cr 0.05 0.1 0.15
Fe 0.05 0.1 0.15
K 0.005 0.008 0.01
Mn 0.005 0.01 0.02
Mo 0.05 0.1 0.15
Na 0.005 0.008 0.01
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