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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 3648-2024: Ferrotungsten Status: Valid GB/T 3648: Historical versions
Basic dataStandard ID: GB/T 3648-2024 (GB/T3648-2024)Description (Translated English): Ferrotungsten Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H42 Classification of International Standard: 77.100 Word Count Estimation: 10,123 Date of Issue: 2024-04-25 Date of Implementation: 2024-11-01 Older Standard (superseded by this standard): GB/T 3648-2013 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 3648-2024: Ferrotungsten---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.ICS 77:100 CCSH42 National Standards of People's Republic of China Replace GB/T 3648-2013 Tungsten Iron Released on 2024-04-25 2024-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued ForewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting: This document replaces GB/T 3648-2013 "Tungsten Ferro" and has the following main changes compared to GB/T 3648-2013, except for structural adjustments and editorial changes: The main technical changes are as follows: a) Added terms and definitions (see Chapter 3); b) The description of the classification of ferrotungsten grades has been changed (see 4:1:1, 3:1:1 of the:2013 edition); c) Added technical requirements for Ni, Co and Al elements in the chemical composition of ferrotungsten (see Table 1); d) Changed the range of W content in FeW70 (see Table 1, Table 1 of the:2013 edition); e) Added analysis methods for Ni, Co and Al (see Table 2): This document is modified to adopt ISO 5450:1980 "Specifications and delivery conditions for ferrotungsten": Compared with ISO 5450:1980, this document has many structural adjustments: See the attached table for the structural number comparison between the two documents: Record A: This document has more technical differences than ISO 5450:1980: A list of these technical differences and their causes is given in Appendix B: Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents: This document was proposed by the China Iron and Steel Association: This document is under the jurisdiction of the National Technical Committee for Standardization of Pig Iron and Ferroalloys (SAC/TC318): This document was drafted by: Ganzhou Jiangxi Tungsten Alloy Co:, Ltd:, Fujian Shanghang Xinwang Tungsten Alloy Co:, Ltd:, Ganzhou Pinxin New Materials Co:, Ltd: Company, Jiangxi Tungsten and Rare Earth Product Quality Supervision and Inspection Center, Qingdao Boxinda Technology Co:, Ltd:, Jitie Ferroalloy Co:, Ltd:, Gold Industry Information Standards Research Institute: The main drafters of this document are: Huang Jiangtao, Liu Chenggui, Zhong Yinglan, Liu Changren, Wang Hao, Liao Xinyu, Zheng Wen, Wang Shihao, Zhou Bin, Xu Na, Li Fuping, Zhou Xing, Gong Linsheng, Liu Jingyu, Liu Bing, Zhang Chen, and Liu Yanting: This document was first issued in 1987, revised for the first time in:1996, revised for the second time in:2013, and this is the third revision: Tungsten Iron1 ScopeThis document specifies the technical requirements, test methods, inspection rules, packaging, storage, transportation, marking and quality certificate of ferrotungsten: This document applies to ferrotungsten used as a tungsten element additive in steelmaking and alloy materials:2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document: For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document: GB/T 3650 General provisions for acceptance, packaging, storage, transportation, marking and quality certification of ferroalloys GB/T 4010 Sampling and preparation of samples for chemical analysis of ferroalloys GB/T 7731:1 Determination of tungsten content by cinchonine gravimetric method and ammonium nitrate gravimetric method GB/T 7731:2 Determination of tungsten, iron and manganese content - Periodate spectrophotometry and flame atomic absorption spectrometry GB/T 7731:3 Determination of tungsten, iron and copper content - Biscyclohexanone oxalyl dihydrazone spectrophotometry and flame atomic absorption spectrometry GB/T 7731:4 Determination of phosphorus content of tungsten iron-phosphomolybdenum blue spectrophotometric method GB/T 7731:5 Determination of tungsten-iron-silicon content - Silicon-molybdenum blue spectrophotometric method GB/T 7731:6 Determination of tungsten, iron and arsenic content - Molybdenum blue photometry and inductively coupled plasma atomic emission spectrometry GB/T 7731:7 Determination of tungsten, iron and tin content - Phenylfluorone photometric method and inductively coupled plasma atomic emission spectrometric method GB/T 7731:8 Determination of tungsten, iron and antimony content - Rhodamine B photometric method and inductively coupled plasma atomic emission spectrometry GB/T 7731:9 Determination of bismuth content of tungsten iron - Bismuth iodide photometric method and inductively coupled plasma atomic emission spectrometry GB/T 7731:10 Determination of carbon content of tungsten iron - Infrared absorption method GB/T 7731:12 Determination of sulfur content in tungsten iron - Infrared absorption method and combustion neutralization titration method GB/T 7731:14 Determination of tungsten, iron and lead content - Polarographic method and inductively coupled plasma atomic emission spectrometry GB/T 7731:17 Determination of tungsten, iron, cobalt, nickel and aluminum content - Inductively coupled plasma atomic emission spectrometry GB/T 13247 Sampling and testing methods for particle size of ferroalloy products3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 An alloy of iron and tungsten with a tungsten content (mass fraction) in the range of 65:0% to 85:0%:4 Technical requirements4:1 Brand and chemical composition 4:1:1 According to the different contents of tungsten and impurities, ferrotungsten is divided into four grades: FeW80-A, FeW80-B, FeW80-C and FeW70: The chemical composition should be ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 3648-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 3648-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 3648-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 3648-2024 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. |
