PDF NB/T 47018.6-2022 English (NB/T 47018.6-2011: Older version)
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Technical conditions for ordering welding materials for pressure equipment - Part 6: Aluminum and aluminum alloy welding wires and filler wires
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| NB/T 47018.6-2011 | English | 70 |
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Technical permission of welding materials for pressure equipment. Section 6: Bare aluminum and aluminum-alloy welding electrodes and rods
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NB/T 47018.6-2022: PDF in English (NBT 47018.6-2022) NB/T 47018.6-2022
NB
ENERGY INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 25.160.10
CCS J 33
Replacing NB/T 47018.6-2011
Specification of Welding Materials for Pressure Equipment -
Section 6: Bare Aluminum and Aluminum-Alloy Welding
Electrodes and Rods
ISSUED ON: NOVEMBER 4, 2022
IMPLEMENTED ON: DECEMBER 31, 2022
Issued by: National Energy Administration
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Technical Requirements ... 5
4 Test Methods and Inspection Rules ... 7
5 Product Identification... 11
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This Document is Part 6 of NB/T 47018 Technical Permission of Welding Materials for
Pressure Equipment. NB/T 47018 consists of the following parts:
--- Part 1: General Rules of Procurement;
--- Part 2: Electrodes for Steel;
--- Part 3: Steel Electrodes and Rods for Gas Shielded Arc Welding;
--- Part 4: Electrodes and Fluxes for Submerged Arc Welding;
--- Part 5: Stainless-Steel Strip Electrodes and Fluxes for Overlay Welding;
--- Part 6: Aluminum and Aluminum Alloy Welding Wires and Filler Wires;
--- Part 7: Titanium and Titanium Alloy Welding Wires and Filler Wires.
This Document replaced NB/T 47018.6-2011 Technical Permission of Welding Materials for
Pressure Equipment - Part 6: Bare Aluminum and Aluminum-Alloy Welding Electrodes and
Rods. Compared with NB/T 47018.6-2011, the major technical changes of this Document are
as follows besides the structural adjustments and editorial modifications:
a) Deleted the relevant contents on model classification and model compilation method (see
Clause 3 of the 2011 Edition);
b) Modify the model representation method of aluminum welding wire and filler wire
according to GB/T 10858; delete the uncommon aluminum alloy welding wires SA14009,
SA14011, SA14010, SA14145, SA14643, SA15654; and add SA15087 (see Table 1 of
this Edition; Table 1 of the 2011 Edition);
c) Delete the table of chemical composition requirements for aluminum welding wire and
filler wire; and implemented it according to GB/T 10858 (see 3.2.1 of this Edition; 4.2.1
and Table 2 of the 2011 Edition);
d) Add barreled welding wire and specific requirements (see 3.3.2 of this Edition);
e) Add relaxation diameter and warpage and specific inspection requirements (see 3.5 of this
Edition);
f) Change the designation of the parent materials used for the test (see Table 3 of this Edition;
Table 3 of the 2011 Edition);
Specification of Welding Materials for Pressure Equipment -
Section 6: Bare Aluminum and Aluminum-Alloy Welding
Electrodes and Rods
1 Scope
This Document specifies the technical requirements, test methods, inspection rules and product
identification of aluminum and aluminum alloy welding wires and filler wires.
This Document is applicable to aluminum and aluminum alloy welding wires and filler wires
for gas welding, gas tungsten arc welding, gas metal arc welding and plasma arc welding of
pressure equipment.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in 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 10858-2008 Aluminum and Aluminum Alloy Wires and Rods
GB/T 20975 (all parts) Methods for chemical analysis of aluminum and aluminum alloy
NB/T 47018.1-2011 Technical permission of welding materials for pressure equipment -
Part 1: General rule
NB/T 47013.2-2015 Nondestructive testing of pressure equipment - Part 2: Radiographic
testing
3 Technical Requirements
3.1 General requirements
Aluminum and aluminum alloy welding wires and filler wires for pressure equipment shall, in
addition to complying with the provisions of GB/T 10858, also comply with the provisions of
NB/T 47018.1 and this Document.
3.2 Inspection items and requirements
3.2.1 The physical and chemical inspection items of welding wire and filler wire shall be carried
out in accordance with the provisions of Table 1.
3.2.2 The chemical composition of welding wire and filler wire shall comply with the
provisions of GB/T 10858.
3.2.3 The radiographic test of welding wire deposited metal shall be carried out in accordance
with NB/T 47013.2-2015. The technical level of radiographic test shall be no lower than Level-
AB, and the quality level shall be Level-I.
3.2.4 The filler wire shall be inspected for flat plate overlaying weld bead, requiring good
molten pool fluidity and no spatter. The weld bead shape is regular, the width and height are
uniform, the surface is smooth, and there are no cracks or pores.
3.2.5 The deposited metal of welding wire and the overlaying weld metal of filler wire shall be
subjected to bending test. After the bending specimen is bent to the specified angle, there shall
be no single opening defect with a length greater than 3 mm in any direction in the deposited
metal on the tensile surface. The corner opening defect of the deposited metal of the specimen
can be ignored; but the length of the corner opening defect caused by un-fusion, inclusions or
other internal defects shall be included.
3.3 Surface quality and uniformity of welding wire and filler wire
3.3.1 The surface of welding wire and filler wire shall be bright and smooth. It can be observed
visually and with a 20× magnifying glass. There shall be no burrs, pits, scratches, oxide scale,
cracks, folds or inclusions. The welding wire shall not have knots, waves, bends and other
defects that affect continuous wire feeding. There shall be no obvious difference in the color of
the welding wire; and it should be performed polishing treatment.
3.3.2 Coiled welding wire and barreled welding wire shall be continuous. The coiled welding
wire layer shall be well-wound, neatly and tightly arranged, without pressed wire, without wire
clamping, and without joints on the surface. The barreled welding wire manufacturer shall
match the appropriate auxiliary wire feeding device. All welding wires shall be able to ensure
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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