This standard specifies the size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking, quality certificate, etc. of steel wire rods for welding. This standard applies to steel wire rods for welding purposes such as manual arc welding, submerged arc welding, electroslag welding, gas welding and gas shielded welding. This standard does not apply to stainless steel wire rods for welding. GB/T 3429-2002 Steel wire rods for welding GB/T3429-2002 Standard download decompression password: www.bzxz.net

ICS 77. 140. 60
National Standard of the People's Republic of China
GB/T 3429 - 2002
Replaces GB/T3429--1994
Steel wire rod for welding
Wire rod for electrode
Issued on 2002-11-29
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on 2003-06-01
GB/T 3429-2002
This standard replaces GB/T3429--1994 from the date of its implementation. Compared with GB/T3429-1994, this standard has the following major changes: some grades have been added;
The chemical composition of some grades in the original standard has been adjusted;
The smelting method and delivery status have been modified; the chemical analysis method has been supplemented and improved, and some inappropriate terms have been cancelled while adding the mechanical properties of alloy steel and ordering instructions.
Appendix A of this standard is an informative appendix.
This standard was proposed by the former State Metallurgical Industry Bureau. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. The drafting units of this standard are: Shanghai No. 2 Steel Co., Ltd. of Baosteel Group, Jiangsu Shagang Group Co., Ltd., Shanghai Square Steel Co., Ltd., Qingdao Steel Co., Ltd., Metallurgical Industry Information Standards Research Institute, and Tangshan Iron and Steel Group Co., Ltd. The main drafters of this standard are: Shen Aiguo, Wu Jie, Feng Wenhua, Tang Liang, Huang Zhaoxin, Gu Jinqi, Huang Zhengyu, and Liu Yi. This standard was first issued in 1982 and revised for the first time in 1994. 234
1 Scope
Steel Wire Rod for Welding
GB/T 3429—2002
This standard specifies the dimensions, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking, quality certificate, etc. of steel wire rod for welding.
This standard applies to steel wire rod for welding used for manual arc welding, submerged arc welding, electroslag welding, gas welding and gas shielded welding. This standard does not apply to stainless steel wire rod for welding. 2 Normative References
The clauses in the following documents become the clauses of this standard through reference in this standard. For dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated referenced documents, the latest versions shall apply to this standard. GB/T222 Sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished products GB/T223.5 Chemical analysis methods for steel and alloys - Reduced molybdenum silicate photometric method for determination of acid-soluble silicon content GB/T223.9 Chemical analysis methods for steel and alloys - Chrome azure S photometric method for determination of aluminium content GB/T 223.11
Chemical analysis methods for steel and alloys - Ammonium persulfate oxidation volumetric method for determination of chromium content GB/T 223. 12
GB/T 223. 14
GB/T 223.16
GB/T 223. 19
GB/T 223. 23
GB/T 223.24
Methods for chemical analysis of steel, iron and alloys
Methods for chemical analysis of steel, iron and alloys
Methods for chemical analysis of steel, iron and alloys
Methods for chemical analysis of steel, iron and alloys
Methods for chemical analysis of steel, iron and alloys
Methods for chemical analysis of steel, iron and alloys
Sodium carbonate separation-diphenylcarbonyl dithiocyanate dithiocyanate photometric method for determination of chromium content Extraction photometric method for determination of vanadium content
Chromotropic acid photometric method for determination of titanium content
New cuproline-chloroform extraction photometric method for determination of copper content Diacetyl spectrophotometric method for determination of nickel content
Extraction separation-diacetyl spectrophotometric method for determination of nickel content Diacetyl gravimetric method for determination of nickel content
GB/T 223.25
Methods for chemical analysis of steel, iron and alloys
GB/T 223.26
GB/T 223.30
GB/T 223.58
Methods for chemical analysis of steel and alloys
Determination of molybdenum content by thiocyanate direct photometric method
Methods for chemical analysis of steel and alloys
Determination of manganese content by precipitation separation of p-bromopicrinic acid-azobein spectrophotometric method Methods for chemical analysis of steel and alloys
Determination of manganese content by sodium arsenite-sodium nitrite titration GB/T223.60Methods for chemical analysis of steel and alloys-Determination of silicon content by perchloric acid dehydration gravimetric method GB/T 223.62
GB/T 223.67
GB/T 223.68
GB/T 223.69
Methods for chemical analysis of steel and alloys
Determination of phosphorus content by butyl acetate extraction photometric method
Methods for chemical analysis of steel and alloys
Determination of sulfur content by reduction distillation-methylene blue photometric methodMethods for chemical analysis of steel and alloys
Determination of carbon content by potassium iodate titration after combustion in a tubular furnaceGas volumetric method for determination of carbon content after combustion in a tubular furnaceMethods for chemical analysis of steel and alloys
Methods for chemical analysis of steel and alloysGravimetric method for determination of carbon content after combustion in a tubular furnaceGB/T 223.71
Methods for chemical analysis of steel and alloysAlumina chromatography-sulfuric acid gravimetric method for determination of sulfur contentGB/T 223. 72
GB/T 4336
Photoelectric emission spectrometric analysis method for carbon steel and medium and low alloy steelGeneral provisions for acceptance, packaging, marking and quality certification of steel sectionsGB/T 2101
GB/T14981—1994 Size, shape, weight and allowable deviation of hot-rolled wire rod GB/T17505 General technical requirements for delivery of steel and steel products 235
GB/T 3429-2002
3 Ordering content
The contract or order for ordering according to this standard shall include the following content: a) Steel grade;
b) Product nominal size and accuracy level;
c) This standard number;
d) Order quantity;
e) Special requirements.
4 Size, shape, weight and allowable deviation
The size, shape and allowable deviation of wire rod shall comply with the provisions of GB/T14981. The weight group shall comply with the provisions of 1, III, V, V in GB/T14981.
5 Technical requirements
5.1 Grade and chemical composition
5.1.1 The grades of welding steel and their chemical composition (finished product analysis) are given in Table 1. Table 1 Grade and chemical composition
H08MnA
H10MnSiA
H05MnSiTiZrAIA
Non-alloy steel
Minutes (mass fraction)/%
0.030.200.300.20
≤0.03≤0.20≤0.300.20
0.03≤0.10≤0.10≤0.10
0. 070. 200. 300.20
0. 030. 20≤0. 300. 20
0. 030.20≤0. 300.20
0.90~0.40~
V,Ti,Zr,Al
Ti : 0. 05~~ 0. 15
not greater than
0. 0100. 015
0.0300.030
0.0300.030
Zr:0.02~0.120.0250.035
Al : 0. 05~0. 15
H08MnSi
H1oMnSi
H11MnSi
H11MnSiA
H05SiCrMoA
H05SiCr2MoA
H05Mn2Ni2MoA
H08Mn2Ni2Mo A
H08CrMoA
H08MnMoA
H08CrMoVA
H08Mn2Ni3MoA
H08CrNi2MoA
H08MnSiCrMoVA
H08MnSiCrMoA
0. 05~0.50 ~Www.bzxZ.net
Table 1 (continued)
Point (mass fraction)/%
0.200.300.20
≤0.20≤0.30≤0.20
≤0.200. 300. 20
Alloy steel
0. 15~0. 80~
≤0. 02≤0. 20
≤0.25≤0.200.30/ 0.20
0. 10~~0. 70~
≤0. 25≤0.20
GB/T 3429—2002
V,Ti,Zr,Al
not greater than
0.0350.035
0.0250.025| |tt||0. 0250. 025
Ti≤0.10
Zr≤0.10
Al≤0.10
Ti≤0.10
Zr≤0.10
Al≤0.1 0
(Additional people)
V:0.15~0.35
Ti≤0.10
Zr≤0.10
Al≤0.10
0.0100. 010
0.0300.030
0. 0300.030
0.0100.010
0.0250.030
V: 0. 20~0. 400. 0250. 030
GB/T 3429--2002
H08Mn2Si
H08Mn2SiA
H08Mn2MoA
H08Mn2MoVA||t t||H10MoCrA
H10Mn2
H10MnSiNiA
H10MnSiNi2A
H10MnSiNi3A| |tt||H10Mn2SiNiMoA
H10Mn2NiMoCuA
H10Mn2SiMoTiA
H10SiCrMoA| |tt||H10SiCr2MoA
H10Mn2SiMoA
H10MnSiMoTiA
H10Mn2MoA
1. 70~~ 0. 65 ~
0. 06~|1. 60~
Table 1 (continued)
points (mass fraction)/%
0.200. 300. 20
0.200.300.20
0.25≤0.20—
≤0. 30≤0. 20
0.250. 200. 300. 20
0. 40~|0. 15~
≤0.12≤1.25
≤0. 12≤1. 25
0. 300. 20
0.200.300. 20
0. 40 ~|2. 30 ~
0. 08~1. 00~0. 40~
0.20≤0.35
10. 35~0 . 20~
0. 02≤0. 20
≤0. 20/0. 20
0. 15 ≤0. 20
≤0.300.20
0.400.200.300.20
V,Ti,Zr,Al
Ti : 0. 15
(adding amount)
V : 0. 06~0. 12
(Additional people)
Ti≤0.20
Al≤0.10
Ti≤0.10
Zr≤0.10
A1≤ 0.10
Ti≤0.20
not greater than
0. 035 0. 035
0. 0300. 030
0.03010.030
0.0250.025
0. 0200.020
0. 0100. 010
0.0250.025
0. 0250. 030
Ti : 0. 05~~0. 15
(Amount added)
0. 030 0. 030
H10Mn2MoVA
H10MnSiMo
H10Mn2A||tt| |H11Mn2SiA
H13CrMoA
H15MnSiA1
H18CrMoA
H30CrMnSiA
0. 11~～
Table 1 (continued)||tt| | points (mass fraction)/%
0.400.200.300.20
0.200.300.20
≤0.20≤0. 30
0. 07~0.90~
0. 200. 300. 20
0.15~0.40~0.15~0.80~
10. 80~0. 90~
0. 30≤0. 20
0. 300. 20
≤0.30≤0. 20
Note: The grades with "a" are used as residual elements The total amount of Ni, Cr, Mo and V should not exceed 0.50%. GB/T 3429-2002
V,Ti,Zr,Al
V : 0.06~~0.12
(Additional amount)
Not more than
0.0300.030
0.0350.035
0. 0250. 025
A1 + 0. 50 ~~0. 900. 035
0.0250. 030
5.1.2 Based on the agreement between the supplier and the buyer, wire rods of other brands and chemical compositions can also be supplied (Appendix A is the brands corresponding to some welding wire models in this standard, AWS and GB/T8110). 5.1.3 According to the agreement between the supplier and the buyer, the allowable silicon content (mass fraction) of H08A, H08E and H08C non-boiling steel shall not exceed 0.07%. 5.2 Smelting method
Steel for wire rod is smelted in oxygen converter or electric furnace. 5.3 Delivery State
Wire rods are delivered in hot-rolled and controlled-cooled state.
5.4 Surface quality
The surface of the wire rods shall be free of cracks, folds, scars, ears, delamination and inclusions. Indentations and local bumps, pits, scratches, and pitting are allowed, but their depth or height: B and C grade precision wire rods shall not exceed 0.10mm; other precision grades shall not exceed 0.20mm. 5.5 Mechanical Properties | |tt||According to the requirements of the purchaser, the mechanical properties of the alloy steel wire rod shall be determined by negotiation between the supply and demand parties. 6 Test methods
6.1 Chemical analysis methods
The sampling method and location of chemical composition analysis samples shall comply with the provisions of GB/T222, and the sampling quantity is 3 per batch. The chemical analysis methods of various elements shall comply with GB/T223 regulations, spectral analysis should comply with GB/T4336 regulations. 6.2 Shape and size measurement method
The shape and size of the wire rod should be measured one by one using measuring tools of corresponding accuracy. 6.3 Surface quality inspection||tt| |GB/T3429—2002
The surface quality of wire rod shall be visually inspected for each wire rod. 7
Inspection rules
7.1 Inspection and acceptance
The quality inspection of wire rod shall be carried out by The supplier's technical supervision department shall conduct the inspection and acceptance. The purchaser has the right to conduct inspection and acceptance according to the provisions of this standard. 2 Batch rules
Wire rods should be inspected in batches, and each batch shall be made of the same furnace (tank), the same brand, and the same Grade, same size. 7.3 Re-inspection
The re-inspection and determination of wire rod shall comply with the provisions of GB/T17505. Packaging, marking and quality certificate
8.1 The packaging, marking and quality certificate of wire rod shall comply with the provisions of GB/T2101. 8.2 The number of bundles of wire rods shall not be less than 3 for each coil. 240
Appendix A
(Informative Appendix)
GB/T 3429-2002
and The grades of this standard corresponding to some welding wire types in AWSA5.18 or AWSA5.28 and GB/T8110 are shown in Table A.1. Table A.1 and AWSA5.18 or AWSA5.28, GB/T8110 corresponding to some welding wire models in this standard GB/T3429-2002 recommended steel grades
H08Mn2SiA
H05MnSiTiZrAlA
H10MnSiA
Hi1MnSi
H15MnSiAl
H11Mn2SiA
H10SiCrMoA
H05SiCrMoA
H08MnSiCrMoVA
H08MnSiCrMoA
H10SiCr2MoA
H05SiCr2MoA
H10MnSiNiA
H10MnS iNi2A
H10MnSiNi3A
H10Mn2SiMoTiA
H10Mn2SiMoA
H05Mn 2Ni2MoA
H10Mn2NiMoCuA
H10Mn2SiNiMoA
H08Mn2Ni2MoA
H08Mn2Ni3MoA
Welding wire model in GB/T8110
ER49-1
ER50-2
ER50-3| |tt||ER50-4
ER50-5
ER50-6
ER55-B2
ER55-B2L
ER 55-B2-MnV
ER 55-B2-Mn
ER62-B3
ER62-B3L
ER55-C1
ER55-C2
ER 55-C3
ER 55-D2-Ti
ER55-D2
ER69-1
ER69-2
ER69-3
ER76-1
ER83-1
AWS5.18 or AWS5.28 corresponding welding wire model ER70S-2
ER 70S-3
ER70S-4
ER 70S-5
ER70S-6
ER 80S-B2
ER 80S-B2L
ER90S-B3
ER90S-B3L
ER 80S-Ni1
ER 80S-Ni2
ER 80S-Ni3
ER 80S-D2
ER100S-1
ER100S-2
ER 110S-1
ER 120S-1
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