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GB/T 25080-2022 English PDF

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Q: Should I purchase the latest version GB/T 25080-2022?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25080-2022 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.

US$269.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 25080-2022: Specification for niobium-titanium alloy billets and bars for superconducting applications
Status: Valid

GB/T 25080: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25080-2022	269	Add to Cart	3 days	Specification for niobium-titanium alloy billets and bars for superconducting applications	Valid
GB/T 25080-2010	559	Add to Cart	3 days	Niobium-titanium alloy billet, bar and rod for superconducting applications	Obsolete

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Basic data

Standard ID: GB/T 25080-2022 (GB/T25080-2022)
Description (Translated English): Specification for niobium-titanium alloy billets and bars for superconducting applications
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H64
Word Count Estimation: 14,123
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 25080-2022: Specification for niobium-titanium alloy billets and bars for superconducting applications

---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.
Specification for niobium-titanium alloy billets and bars for superconducting applications ICS 77.120.50 CCSH64 National Standards of People's Republic of China Replacing GB/T 25080-2010 Specification for niobium-titanium (Nb-Ti) alloy billets and rods for superconductivity Published on 2022-10-12 2023-05-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Order Information 1 5 Products and Manufacturing 2 6 Chemical Composition 2 7 Physical Properties 3 8 Mechanical properties 3 9 Size tolerance 3 10 Workpiece quality, roughness and appearance3 11 Sampling 4 12 Test 4 13 Number Rounding Rule 4 14 Detection method 5 15 Acceptance 5 16 Rejection and Retrial 5 17 Quality certificate5 18 Product Mark 5 19 Packaging and Packaging Identification5 Appendix A (Normative) Ultrasonic Testing of Nb-Ti Alloy Billets and Bars for Superconductivity 7

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces GB/T 25080-2010 "Nb-Ti Alloy Billets, Thick Rods and Thin Rods for Superconductivity", which is consistent with GB/T 25080-2010 In addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Added specific provisions for the upper limit of the size of the defect. 3%D or 2.5mm (see 7.3); --- Added "cracks", "black skin" and "scratch" to the list of "harmful defects", deleted "scars", "burrs" and "scuffs" (see 10.1,.2010 10.1 of the year edition); --- Increased the detection method of surface roughness (see 14.6); --- Change "the frequency of the conventional probe should be 2.25MHz~10MHz" to "the minimum nominal frequency of the probe should be 2.25MHz" (see A.2.1.2, A.2.1.2 of the.2010 edition). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the Chinese Academy of Sciences. This document is under the jurisdiction of the National Superconductivity Standardization Technical Committee (SAC/TC265). This document is drafted by. Western Superconducting Materials Technology Co., Ltd., Institute of Physics, Chinese Academy of Sciences, Plasma, Chinese Academy of Sciences Institute of Physics, Northwest Institute of Nonferrous Metals, Institute of High Energy Physics, Chinese Academy of Sciences. The main drafters of this document. Guo Qiang, Shang Jinjin, Yang Jing, Li Jie, He Yongsheng, Wang Ruilong, Zhang Kailin, Qin Jinggang, Xiong Xiaomei, Zhang Cuiping, Xu Qingjin. The previous versions of this document and its superseded documents are as follows. ---First published in.2010 as GB/T 25080-2010; ---This is the first revision.

Introduction

Niobium-titanium (Nb-Ti) superconducting material is by far the most widely used superconducting material. Nb-Ti alloy billets and bars are machined Nb- The quality of the raw material of Ti superconducting wire plays a decisive role in the quality of the final Nb-Ti superconducting product. Therefore, in order to adapt to domestic super To meet the needs of the rapid development of conductive technology, unify and standardize the technical requirements, test methods, and acceptance regulations for domestic Nb-Ti alloy billets and bars for superconductivity. GB/T 25080-2010 needs to be revised, so as to form superconducting products that are basically consistent with foreign advanced standards Specification standard for Nb-Ti alloy billets and bars. This document was drafted with reference to the American Society for Testing and Materials Standard ASTMB884-2019 "Nb-Ti Alloy Rods for Superconductivity" redefines. Specification for niobium-titanium (Nb-Ti) alloy billets and rods for superconductivity

1 Scope

This document specifies the technical requirements, test methods, acceptance rules, marking and packaging of niobium-titanium (Nb-Ti) alloy billets and bars for superconductivity Install and so on. This document is applicable to Nb-Ti alloy billets and bars containing Ti46%~48% (mass fraction) for the manufacture of superconducting wires.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 4340.1 Vickers Hardness Test for Metal Materials Part 1.Test Methods GB/T 6060.2 Surface roughness comparison sample block grinding, turning, boring, milling, inserting and planing surface GB/T 6394 Metal Average Grain Size Determination Method GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 9445 Qualification and Certification of Nondestructive Testing Personnel GB/T 18851.1 Nondestructive Testing Penetrant Testing Part 1.General General technical conditions of JB/T 10061 A type pulse reflection ultrasonic flaw detector

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 thin rod Products with a diameter of 10mm~60mm (excluding 60mm). 3.2 thick bar Products with a diameter of 60mm~150mm (excluding 150mm). 3.3 billet bilet Products with a diameter of not less than 150mm. 3.4 batch lot All products produced from the same ingot with the same cross-sectional area and the same nominal metallurgical parameters.

4 Order Information

Orders placed under this document shall include the following. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 25080-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 25080-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 25080-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 25080-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 25080-2022?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 25080-2022 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.