XB/T 401-2010 English PDF

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XB/T 401-2010: Light rare earth compound inoculants

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Basic data

Standard ID: XB/T 401-2010 (XB/T401-2010)
Description (Translated English): Light rare earth compound inoculants
Sector / Industry: Rare Earth Metal Industry Standard (Recommended)
Classification of Chinese Standard: H65
Classification of International Standard: 77.120.99
Word Count Estimation: 7,775
Date of Issue: 2010-11-10
Date of Implementation: 2011-03-01
Issuing agency(ies): Ministry of Industry and Information Technology

XB/T 401-2010: Light rare earth compound inoculants

---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.
Light rare earth compound inoculants ICS 77.120.99 H65 Rare Earth Industry Standard of the People's Republic of China Replace XB/T 401-2000 Light rare earth compound inoculant Released on.2010-11-10 2011-03-01 implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China

Foreword

This standard replaces XB/T 401-2000 "Light Rare Earth Compound Inoculant". Compared with XB/T 401-2000, the main changes of this standard are as follows. ---According to the provisions of GB/T 17803 ``Representation Method of Rare Earth Product Brands'', digital grades are adopted; ---The rare earth content and silicon content in the chemical composition table have been adjusted, and the assessment index of aluminum content has been increased. This standard is under the jurisdiction of the National Rare Earth Standardization Technical Committee (SAC/TC229). This standard was drafted by Deyang Jinyang Rare Earth Co., Ltd. The main drafters of this standard. Xie Bin, Wang Kedi, Liu Jianbin, Yang Minzhong, Zhang Falu, Xie Linmei, Huang Lin. The previous releases of this standard are as follows. ---XB/T 401-2000. Light rare earth compound inoculant

1 Scope

This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation and storage of light rare earth composite inoculants. This standard is applicable to light rare earth composite inoculants that are made from rare earth ferrosilicon and used as an additive to molten iron by electrofusion pulverization.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 8170 Numerical rounding rules and the expression and determination of limit values GB/T 16477 Chemical analysis method for rare earth ferrosilicon alloy and magnesium ferrosilicon alloy

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 Inoculant based on silicon, iron as the balance, and containing rare earth (mainly light rare earth), barium, calcium, aluminum and other elements.

4 requirements

4.1 Chemical composition The product brand and chemical composition should meet the requirements of Table 1.If the buyer has special requirements, the supplier and the buyer can negotiate separately. Table 1 Product brand Chemical composition (mass fraction)/% Si RE Ba Ca Sb Al Fe Remarks 199101 68~75 0.5~1.0 1.0~2.0 1.0~2.0-< 2.0 The margin is suitable for various iron castings 199102A 55~65 0.5~1.2 3.0~4.0 2.0~3.0-< 2.0 The margin is suitable for various cast ferritic ductile iron parts 199102B 55~65 0.8~1.5 1.0~2.5 1.5~2.5-< 2.0 The margin is suitable for high-strength thin-walled gray iron parts 199103 50~60 1.5~2.5 2.5~3.0 2.0~3.0 1.0~3.0 < 2.0 The margin is suitable for pearlite ductile iron and thick-wall ductile iron 4.2 Product granularity The product size is 0.2mm~2mm, >2mm~10mm, >10mm~30mm. If the buyer has special requirements, supply and demand Both parties may negotiate separately. ......

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