Standard No.:	NB/T 47018.7-2011
English Name:	Technical permission of welding materials for pressure equipment - Part 7: Titanium and titanium-alloy welding electrodes and rods
Chinese Name:	承压设备用焊接材料订货技术条件 第7部分：钛及钛合金焊丝和填充丝
Professional Classification:	NB    Professional Standard - Energy
Issued by:	NEA
Issued on:	2011-7-1
Implemented on:	2011-10-1
Status:	superseded
Superseded by:	NB/T 47018.7-2022 Technical conditions for ordering welding materials for pressure equipment - Part 7: Titanium and titanium alloy welding wires and filler wires
Superseded on:	2022-12-31
Superseding:	JB/T 4747-2002 Technical permission of steel welding rod purchasing for pressure vessels
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	60.0
Delivery:	via email in 1 business day

1 Scope This Section of NB/T 47018 specifies the designation preparation, technical requirements, test methods and inspection rules of the titanium and titanium-alloy welding electrodes and rods. This Section is applicable to titanium and titanium-alloy welding electrodes and rods used for the gas tungsten arc welding, gas metal arc welding and plasma arc welding of pressure equipment. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies. GB/T 2653 Bend Test Methods on Welded Joints GB/T 3620.1 Designation and Composition of Titanium and Titanium Alloys GB/T 3623 Titanium and Titanium Alloy Wire GB/T 4698(All Parts) Chemical Analytical Methods for Chemical of Titanium Sponge and Titanium and Titanium Alloys GB/T 5168 Microstructure and Macrostructure Examination for α-β Titanium Alloys NB/T 47018.1 Technical Permission of Welding Materials for Pressure Equipment Section 1: General Rule JB/T 4730.2 Nondestructive Testing for Pressure Equipment - Part 2: Radiographic Testing 3 Designation 3.1 The designation of welding electrodes and rods is classified according to chemical composition and use occasion. 3.2 Designation preparation "E" means applying to welding electrodes; "R" means applying to rods; "ER" means applying to welding electrodes as well as rods. Numbers and English letters after "R" "ER" are designation series. Designation examples of the welding electrodes and rods are as follows:

Foreword I 1 Scope 2 Normative References 3 Designation 4 Technical Requirements 5 Test Methods 6 Inspection Rules 7 Winding of Welding Electrodes 8 Packaging 9 Identification Appendix A (Informative) Codes for Titanium and Titanium-alloy Welding Electrodes and Rods in Chinese and American Standards