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XB/T 403-2023: (Gadolinium ferroalloy)
Status: Valid XB/T 403: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| XB/T 403-2023 | English | 139 |
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(Gadolinium ferroalloy)
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XB/T 403-2023
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| XB/T 403-2012 | English | 239 |
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Gadolinium ferroalloy
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XB/T 403-2012
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PDF similar to XB/T 403-2023
Basic data | Standard ID | XB/T 403-2023 (XB/T403-2023) | | Description (Translated English) | (Gadolinium ferroalloy) | | Sector / Industry | Rare Earth Metal Industry Standard (Recommended) | | Classification of Chinese Standard | H65 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,656 | | Date of Issue | 2023-12-20 | | Date of Implementation | 2024-07-01 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the classification, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and accompanying documents of gadolinium ferroalloys. This standard applies to gadolinium-iron alloys produced by electrolysis and fusion methods, and is mainly used for the preparation of rare earth permanent magnet materials such as neodymium iron boron. | XB/T 403-2012: Gadolinium ferroalloy---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.
Gadolinium ferroalloy
ICS 77.120.99
H65
China's rare earth industry standards
Neodymium iron alloy
Released on November 11,.2012
2013-03-01 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 under the jurisdiction of the National Rare Earth Standardization Technical Committee (SAC/TC229).
This standard is drafted by. Rare Earth New Materials Co., Ltd.
Participated in the drafting of this standard. Zhangzhou Jidong Rare Earth Group Co., Ltd.
The main drafters of this standard. Li Zong'an, Yan Wenzhou, Pang Siming, Gong Bin, Cai Zhishuang, Yan Shihong, Chen Dehong, Zhang Lizhi, Yao Nanhong.
Neodymium iron alloy
1 Scope
This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certificates of bismuth iron alloy.
This standard is applicable to the ferroniobium alloy produced by the electrolysis method and the fusion method, and is mainly used for preparing high-performance rare earth permanent magnet materials such as neodymium iron boron.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 12690 chemical analysis method for non-rare earth impurities in rare earth metals and their oxides
GB/T 17803 Rare Earth Product Grade Representation Method
Iron and steel alloys - Determination of the total amount of rare earths - Part 1
XB/T 616.2-2012 Determination of the content of rare earth impurities - Inductive coupling
Daughter atomic emission spectrometry
Iron and steel alloys - Determination of iron content - Potassium dichromate volumetric method
3 requirements
3.1 Product brand
According to the provisions of GB/T 17803, strontium iron alloy is divided into three grades according to its chemical composition.
3.2 Chemical composition
The chemical composition of bismuth iron alloy should meet the requirements of Table 1. If the buyer has special requirements for the product, both the supplier and the buyer may negotiate separately and in the contract.
Indicated in the middle.
Table 1
product
Brand
Chemical composition (mass fraction) /%
RE Fe
Gd/RE
not less than
Impurity content, not greater than
Rare earth impurity/RE
Non-rare earth impurity
Si Ca Mg Al Mn Ni CO
085075 75±1 balance 99.5 0.5 0.05 0.01 0.01 0.05 0.02 0.05 0.03
085072 72±1 balance 99.5 0.5 0.05 0.01 0.01 0.05 0.02 0.05 0.03
085069 69±1 balance 99.5 0.5 0.05 0.01 0.01 0.05 0.02 0.05 0.03
3.3 Appearance
3.3.1 The product is an as-cast alloy with a silver-gray metallic luster and irregular blocks.
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