NB/T 47018.2-2017 PDF EnglishUS$260.00 · In stock · Download in 9 seconds
NB/T 47018.2-2017: Technical permission of welding materials for pressure equipment - Section 2: Electrodes for steel Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid NB/T 47018.2: Historical versions
Similar standardsNB/T 47018.2-2017: Technical permission of welding materials for pressure equipment - Section 2: Electrodes for steel---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/NBT47018.2-2017 NB ENERGY INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 25.160.10 J 33 Replacing NB/T 47018.2-2011 Technical Permission of Welding Materials for Pressure Equipment Section 2: Electrodes for Steel ISSUED ON: MARCH 28, 2017 IMPLEMENTED ON: AUGUST 01, 2017 Issued by: National Energy Administration Table of ContentsForeword ... 3 1 Scope ... 6 2 Normative References ... 6 3 Technical Requirements ... 7 4 Bending Test of Deposited Metal ... 14 5 Product Marking ... 15 Appendix A (Informative) Comparison of Electrode Model ... 17ForewordNB/T 47018-2017 Technical Permission of Welding Materials for Pressure Equipment can be divided into 5 Parts: --- Part 1: General Rule; --- Part 2: Electrodes for Steel; --- Part 3: Steel Electrodes and Rods for Gas Shielded Arc Welding; --- Part 4: Electrodes and Fluxes or Submerged Arc Welding; --- Part 5: Stainless-Steel Strip Electrodes and Fluxes for Overlay Welding. This Part is the Part 2 of NB/T 47018-2017. This Part was drafted as per the rules specified in GB/T 1.1-2009 Directives for Standardization – Part 1: Structure and Drafting of Standards. This Part revised NB/T 47018.2-2011 Technical Permission of Welding Materials for Pressure Equipment - Part 2: Electrodes for Steel. Compared with NB/T 47018.2-2011, the major technical Changes of this Part are as follows: --- According to the provisions of national standards on electrodes of 2012 Version, change the name of GB/T 5117 Carbon Steel Covered Electrodes into Electrodes for Non-Alloy and Fine-Grain Steels; change the name of GB/T 5118 Low Alloy Steel Covered Electrodes into Covered Electrodes for Manual Metal Arc Welding of Creep-Resisting Steels; and newly add GB/T 32533 Covered Electrodes for Manual Metal Arc Welding of High-Strength Steels. --- Reserve 7 electrode models of E4303, E4315, E4316, E5015, E5016, E5018, E5515-G in the electrodes for non-alloy and fine grain steels; and the model formulation of the electrodes is the same as that in the new version of standard, however, there are some changes in the technical requirements. Reserve 5 electrode models, and the corresponding changed models are put into the brackets according to the provisions of new version of standard: E5015-E (E5015-N1), E5016-E (E5016-N1), E5515-E (-40°C) (E5515-N1), E5516-E (E5516-N1), E5515-E (-50°C) (E5515-N3). Add totally 23 electrode models, including E4318, E5516-G, E5518-G (-30°C), E5018-G (-40°C), E5518-G (- 40°C), E5018-1, E5015-G, E5016-G, E5015-N2, E5515-N2, E5018-N2, E5516- N3, E5518-N3, E5515- N5, E5516-N5, E5518-N5, E5015-G (-70°C), E5015-N5, E5016-N5, E5018-N5, E5015-N7, E5016-N7, and E5018-N7. --- Reserve 5 electrode models in the electrodes for creep-resisting steels, and the Technical Permission of Welding Materials for Pressure Equipment Section 2: Electrodes for Steel1 ScopeThis Part of NB/T 47018-2017 specifies the technical requirements, deposited metal bending test and product marking for the steel electrodes. This Part is applicable to the electrodes for non-alloy and fine-grain steels, electrodes for creep-resisting steels, electrodes for high-strength steel, and stainless-steel electrodes used for the pressure equipment.2 Normative ReferencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this document. GB/T 983-1995 Stainless Steel Covered Electrodes GB/T 983 Stainless Steel Covered Electrodes GB/T 2653 Methods of Bend and Compression Tests for Welded Joint GB/T 3965 Methods for Determination of Diffusible Hydrogen in Deposited Metal GB/T 5117-1995 Carbon Steel Covered Electrodes GB/T 5117 Covered Electrodes or Manual Metal Arc Welding of Non-Alloy and Fine Grain Steels GB/T 5118-1995 Low Alloy Steel Covered Electrodes GB/T 5118 Covered Electrodes for Manual Metal Arc Welding of Creep-Resisting Steels GB/T 32533 Covered Electrodes for Manual Metal Arc Welding of High-Strength Steels NB/T 47013.2 Non-Destructive Testing of Pressure Equipment - Part 2: Radiographic Testing NB/T 47014 Welding Procedure Qualification for Pressure Equipment NB/T 47018.1 Technical Permission of Welding Materials for Pressure Equipment - Section 1: General Rule3 Technical Requirements3.1 General rules In addition to the provisions of GB/T 983, GB/T 5117, GB/T 5118 and GB/T 32533, the steel electrodes for pressure equipment shall also comply with the provisions of NB/T 47018.1 and this Part. Refer to Appendix A for the correspondence between the electrode models in this Part and the models in and other related standards. 3.2 The eccentricity of the electrode 3.2.1 The eccentricity of electrode with a diameter no greater than 2.5mm shall be no greater than 5%; however, the eccentricity of 5% inspected electrodes is allowed to be greater than 5% and no greater than 7%. 3.2.2 The eccentricity of electrode with diameters of 3.2mm and 4.0mm shall be no greater than 4%; however, the eccentricity of 5% inspected electrodes is allowed to be greater than 4% and no greater than 5%. 3.2.3 The eccentricity of electrode with a diameter of no less than 5.0mm shall be no greater than 3%; however, the eccentricity of 5% inspected electrodes is allowed to be greater than 3% and no greater than 4%. 3.3 Chemical composition of deposited metal The sulfur and phosphorus contents of the deposited metal of commonly used steel electrodes for pressure equipment is shown in Table 1. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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