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GB/T 37612-2019 PDF in English


GB/T 37612-2019 (GB/T37612-2019, GBT 37612-2019, GBT37612-2019)
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GB/T 37612-2019: PDF in English (GBT 37612-2019)

GB/T 37612-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.99; 77.140.65
H 59
Corrosion-resistant alloy wires for welding
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 6 
4 Ordering content ... 6 
5 Dimensions and shape ... 6 
6 Technical requirements ... 7 
7 Test methods ... 10 
8 Inspection rules ... 10 
9 Packaging, marking, and quality certificate ... 10 
Appendix A (Informative) Table for comparison of domestic and foreign
designations for wires for welding ... 11 
Appendix B (Informative) Characteristics and use of corrosion-resistant alloy
wires for welding ... 13 
Appendix C (Informative) Recommended solution treatment temperatures .. 17 
Appendix D (Informative) Mechanical properties of wires for welding ... 18 
Corrosion-resistant alloy wires for welding
1 Scope
This Standard specifies the terms and definitions, ordering content, dimensions,
shape, technical requirements, test methods, inspection rules, packaging,
marking, and quality certificate of nickel-based, iron-nickel-based corrosion-
resistant alloy wires for welding.
This Standard applies to nickel-based and iron-nickel-based corrosion-resistant
alloy solid bare wires for welding (hereinafter referred to as wires for welding)
used as filler metals such as consumable-electrode inert-gas-shielded arc
welding, tungsten-electrode inert-gas-shielded arc welding, plasma arc welding,
and submerged-arc welding.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 223.4 Alloyed steel - Determination of manganese content -
Potentiometric or visual titration method
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total
silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.9 Iron, steel and alloy - Determination of aluminium content -
Chrome azurol S photometric method
GB/T 223.11 Iron, steel and alloy - Determination of chromium content -
Visual titration or potentiometric titration method
GB/T 223.14 Methods for Chemical Analysis of Iron, Steel and Alloy - The N-
Benzoy-N-Phenylhydroxylamine Extraction Photometric Method for the
Determination of Vanadium Content
GB/T 223.17 Methods for chemical analysis of iron steel and alloy - The
diantipyrylmethane photometric method for the determination of titanium
content
GB/T 223.18 Methods for Chemical Analysis of Iron, Steel and Alloy - The
Sodium Thiosulfate Separation Iodimetric Method for the Determination of
Copper Content
GB/T 223.22 Methods for chemical analysis of iron, steel and alloy - The
nitroso-R-salt spectrophotometric method for the determination of cobalt
content
GB/T 223.25 Methods for chemical analysis of iron, steel and alloy - The
dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 223.28 Methods for chemical analysis of iron, steel and alloy - The α-
benzoin oxime gravimetric method for the determination of molybdenum
content
GB/T 223.38 Methods for chemical analysis of iron, steel and alloy - The
anion-exchange separation-gravimetric method for the determination of
niobium content
GB/T 223.43 Iron, steel and alloy - Determination of tungsten content -
Gravimetric method and spectrophotometric method
GB/T 223.59 Iron, steel and alloy - Determination of phosphorus content -
Bismuth phosphomolybdate blue spectrophotometric method and antimony
phosphomolybdate blue spectrophotometric method
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy - The
sodium (potassium) periodate photometric method for the determination of
manganese content
GB/T 223.73 Iron steel and alloy - Determination of iron contents - Titanium
trichloride-potassium dichromate titration method
GB/T 223.79 Iron and steel - Determination of multi-element contents - X-ray
fluorescence spectrometry (Routine method)
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared
absorption method after combustion in an induction furnace
GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared
absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at
room temperature
GB/T 2975-2018 Steel and Steel Products - Location and Preparation of Test
Pieces for Mechanical Testing
6 Technical requirements
6.1 Designation and chemical composition
The designation and chemical composition (product analysis) of the alloy shall
comply with the requirements of Table 1. For the comparison of domestic and
foreign designations and unified digital codes for wires for welding, refer to
Appendix A. For the characteristics and use of wires for welding, refer to
Appendix B.
6.2 Smelting method
The alloy is smelted by vacuum induction furnace or by vacuum induction
furnace plus electroslag remelting. Through consultation between the supplier
and the purchaser, other smelting methods which can meet the requirements
of this Standard may also be used.
6.3 Delivery state
The wire for welding is delivered in a cold-drawn or solution-treated state. The
delivery state shall be indicated in the contract; those not indicated shall be
delivered in the cold-drawn state. For recommended solution treatment
temperatures, see Appendix C.
6.4 Surface quality
The surface quality of the wires for welding shall comply with the provisions of
GB/T 37609.
6.5 Special requirements
According to the requirements of the purchaser, through consultation between
the supplier and the purchaser, and indicated in the contract, the wires for
welding of the following special requirements may be provided:
a) Wires for welding with designations and chemical composition other than
those listed in Table 1 may be provided;
b) Tighten chemical composition or limit the content of residual elements;
c) Detect mechanical properties (see Appendix D);
d) Other.
Appendix B
(Informative)
Characteristics and use of corrosion-resistant alloy wires for welding
The characteristics and use of corrosion-resistant alloy wires for welding are
shown in Table B.1.
Table B.1 -- Characteristics and use of corrosion-resistant alloy wires for
welding
Table
1 No.
ISC
codes
Alloy
designations Characteristics and use of wires for welding
2 W58825 HNS1402
Nickel-iron-chromium-molybdenum-copper-based wires for
welding. The nominal composition (mass fraction %) is 42Ni,
30Fe, 21Cr, 3Mo, 2Cu. It is suitable for self-welding of NS1402
and ISCH08825. USE tungsten-electrode gas shielded welding
and metal arc gas shielded welding.
3 W58021 HNS1403
Nickel-chromium-molybdenum-copper-based wires for welding.
The nominal composition (mass fraction %) is 20Cr, 34Ni,
2.5Mo, 3.5Cu. The addition of Nb improves the resistance to
intergranular corrosion. It is mainly used for the welding of
matrix metals of similar composition. These matrix metals are
intended to be used in environments resistant to serious
corrosion of a wide range of chemicals containing sulfur, sulfuric
acid and its salts. It can weld both NS1403 cast alloy and
NS1403 forged alloy, without heat treatment after welding.
When the wire for welding is changed to Nb-free, it may be used
for repair welding of Nb-free castings; but with this modified
composition, solution annealing treatment after welding is
necessary.
5 W56601 HNS3103
Nickel-chromium-based wires for welding. The nominal
composition (mass fraction %) is 61Ni, 23Cr, 14Fe, 1.4Al. It is
used for self-welding of NS3103 and ISCH06601 and welding
with other high-temperature composition alloys. USE tungsten-
electrode gas shielded welding method. It may be used in harsh
environments where exposure temperatures may exceed
1150 °C.
Table B.1 (continued)
Table
1 No.
ISC
codes
Alloy
designations Characteristics and use of wires for welding
15 W10276 HNS3304
Nickel-chromium-molybdenum-based wires for welding. The
nominal composition (mass fraction %) is 57Ni, 16Cr, 15.5Mo,
5.5Fe, 4W. It is used for self-welding of NS3304 and
ISCH10276, welding with steel or other nickel-based alloys, and
welding using nickel-chromium-molybdenum alloy surfacing
steel. USE tungsten-electrode gas shielded welding and metal
arc gas shielded welding methods.
16 W56625 HNS3306
Nickel-chromium-molybdenum-based wires for welding. The
nominal composition (mass fraction %) is 61Ni, 22Cr, 9Mo,
3.5Nb+Ta. It is used for self-welding of NS3306 and ISCH06625,
welding with steel or other nickel-based alloys, welding using
nickel-chromium-molybdenum alloy surfacing steel, and welding
of cladding side of nickel-chromium-molybdenum alloy
composite steel. USE methods such as tungsten-electrode gas
shielded welding, metal arc gas shielded welding, submerged-
arc welding, and plasma welding. It is recommended for
applications where the operating temperature is from low
temperature to 540 °C.
17 W56022 HNS3308
Nickel-chromium-molybdenum-based wires for welding. The
nominal composition (mass fraction %) is 56Ni, 22Cr, 13Mo,
4Fe, 3W. It is used for self-welding of NS3308 and ISCH06022,
welding with steel or other nickel-based alloys, and surfacing on
steel using nickel-chromium-molybdenum alloy weld metal. USE
tungsten-electrode gas shielded welding, metal arc gas shielded
welding, and plasma welding methods.
18 W56002 HNS3312
Nickel-chromium-molybdenum-based wires for welding. The
nominal composition (mass fraction %) is 47Ni, 22Cr, 18Fe,
9Mo, 1.5Co. It is used for self-welding of NS3312 and
ISCH06002, welding with steel or other nickel-based alloys, and
welding using nickel-chromium-molybdenum alloy surfacing
steel coatings. USE tungsten-electrode gas shielded welding,
metal arc gas shielded welding, and plasma welding methods.
19 W56055 HNS3355
Nickel-chromium-based wires for welding. The nominal
composition (mass fraction %) is 55Ni, 30Cr, 8Fe, 4Mo, 3Nb. It
is used for self-welding of NS3105 and ISCH06690, welding
with steel, welding with steel’s surfacing layer. USE tungsten-
electrode gas shielded welding, metal arc gas shielded welding,
submerged-arc welding, electroslag welding, and plasma
welding methods. Welds made of this composition are
particularly resistant to plastic cracking and oxide inclusions.
......
 
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