GB/T 6481-2016 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 6481-2016: Hollow hexagonal drill rods with tapered connection for rock drilling Status: Valid GB/T 6481: Historical versions
Basic dataStandard ID: GB/T 6481-2016 (GB/T6481-2016)Description (Translated English): Hollow hexagonal drill rods with tapered connection for rock drilling Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H44 Classification of International Standard: 77.140.60 Word Count Estimation: 10,185 Date of Issue: 2016-12-13 Date of Implementation: 2017-09-01 Older Standard (superseded by this standard): GB/T 6481-2002 Regulation (derived from): National Standard Notice No.66 of 2016 Issuing agency(ies): General Administration of Quality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 GB/T 6481-2016: Hollow hexagonal drill rods with tapered connection for rock drilling---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.Hollow hexagonal drill rods with taperd connection for rock drilling ICS 77.140.60 H44 National Standards of People's Republic of China Replace GB/T 6481-2002 Drilling rods are used to connect hollow hexagonal drill rods 2016-12-13 released 2017-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released ForewordThis standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 6481-2002 "Drilling rods with pyramid-connected hollow hexagonal drill rods", compared with GB/T 6481-2002 The changes are as follows. --- "Figure 1" 5 - drill rod length "modified to" drill rod effective length ", with La said; increase the" drill rod length ", said L; --- clearly Table 2 for the drill rod delivery length, and domestic and foreign drill rods to pay the length of the different notes; Change the size of "d6" in Figure 3 to "D5" and "C" to "C1", and change the size of " C2 "; Change the "C" allowable deviation from "± 2.0" to "± 0.5"; change H22, H25, and " Increase the "X" and "Y" sizes; increase the H22, H25 on the D1 Note 2; --- remove the original table 4 "forging drill rod cone" and "d6" size; increase the taper of 11 ° H22 machine processing cone size; --- "6.3 Rod end of the tail handle 30mm hardness HRC49 ~ HRC57" to "6.2 Rod end of the tail 30mm hardness HRC48 ~ HRC60 ". This standard is proposed by China Iron and Steel Industry Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). The drafting unit of this standard. Shougang Guiyang Special Limited Liability Company, Metallurgical Industry Information Standards Institute, Iron and Steel Research Institute. The main drafters of this standard. Xiong Jiaze, Yang Yun, Wang Yujie, Wang Zhusheng, Liu Baoshi, Hu Ruhao, Dong Xinye. This standard replaced the previous version of the standard release. GB/T 6481-1986, GB/T 6481-1994, GB/T 6481-2002. Drilling rods are used to connect hollow hexagonal drill rods1 ScopeThis standard specifies the ordering content, specification code, shape and size, technical requirements, test of the hollow hexagonal drill rod with cone Methods, inspection rules, packaging, signs and quality certificates. This standard applies to the side of the nominal size of 19mm, 22mm, 25mm rock with a cone to connect hollow hexagonal drill rod.2 normative reference documentsThe following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1. Test methods (A, B, C, D, E, F, G, H, K, N, T) ruler) GB/T 224 Determination of decarburization depth of steel GB/T 1182 Geometrical Product Specifications (GPS) Geometric tolerances Shape, orientation, position and runout Tolerance GB/T 1301 hollow steel for drilling rods GB/T 2101 steel acceptance, packaging, marking and quality of the general provisions of the certificate General technical requirements for delivery of steel and steel products GB/T 175053 order contentThe contract or order ordered in accordance with this standard shall include the following. a) Standard number; b) product name; c) specification code; d) shape and size; e) special requirements.4 specification codeProduct specification code by the H and drill rod tail handle to the nominal size of the composition, H for hexagonal (Hexagonal) of the English first letter, specifications The code is shown in Table 1. Table 1 Product specification code Specification code tail handle to the nominal size/mm H19 19 H22 22 H25 25 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 6481-2016_English be delivered?Answer: Upon your order, we will start to translate GB/T 6481-2016_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 6481-2016_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 6481-2016_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. 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Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |