NB/T 47018.3-2017Technical delivery conditions of welding materials for pressure equipment - Part 3: Steel wires and filler rods for gas shielded arc welding (English PDF)

Foreword

NB/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 3 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 47018.3-2011 Technical Permission of Welding Materials for Pressure Equipment - Part 3: Steel Electrodes and Rods for Gas Shielded Arc Welding.

Compared with NB/T 47018.3-2011, the major technical changes of this Part are as follows:

--- Add GB/T 25774.1, GB/T 29713, YB/T 5092, AWS A5.9 in the normative references;

--- Add 33 welding wire codes, thereof, including 11 codes of welding wires for carbon steels and low-alloy steels: ER50-3, ER50-G, ER60-G, ER49-A1, ER55- B6, ER55-D2-Ti, ER55-D2, ER55-G, ER62-D2, ER60-G, ER62-G; and 22 codes of welding wires for stainless steel: S308, S308H, S308L, S308LSi, S309, S309L, S309LSi, S309Mo, S309LMo, S310, S316, S316H, S316L, S316LSi, S317, S317L, S318, S321, S347, S410, S430, S2209;

--- Modify the sulfur and phosphorus contents of some original welding wires and filler wires for low-alloy steels; and specify the sulfur and phosphorus contents for the newly added models of welding wires;

--- Adjust the provisions of impact test of deposited metal of original model welding wire and filler wire; supplement the provisions of impact test of newly added welding wire and filler wire for low-alloy steels;

--- Add the provisions for tensile test of deposited metal of welding wire and filler wire;

--- Allow the use of transverse bending specimens in the bending test; and add the Technical Permission of Welding Materials for Pressure Equipment Section 3: Steel Electrodes and Rods for Gas Shielded Arc Welding

1 Scope

This Part of NB/T 47018-2017 specifies the technical requirements, the mechanical properties and bending tests of the deposited metal, and product marking for the steel welding wires and filler wires for gas shielded arc welding.

This Part is applicable to carbon steel welding wire and filler wire for gas shielded arc welding, low alloy steel welding wire and filler wire, stainless steel welding wire and filler wire for pressure equipment.

2 Normative References

The 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 2653 Bend Test Methods on Welded Joints

GB/T 8110 Welding Electrodes and Rods for Gas Shielding Arc Welding of Carbon and Low Alloy Steel

GB/T 25774.1 Test Methods for Welding Consumables - Part 1: Preparation and Testing of Deposited Metal Specimens for Mechanical Properties in Steel Nickel and Nickel Alloys

GB/T 29713 Wire Electrodes, Strip Electrodes, Wires and Rods for Arc Welding of Stainless and Heat Resisting 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 - Part 1: General Rule

YB/T 5092 Stainless Steel Wires for Welding

AWS A5.9/A5.9M:2006 Specification for Bare Stainless Steel Welding Electrodes and Rods

3 Technical Requirements