This standard specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, transportation, storage marks and quality certificates of steel wire for fusion welding. This standard is mainly applicable to cold-drawn steel wire for arc welding, submerged arc automatic welding and semi-automatic welding, electroslag welding and gas welding. GB/T 14957-1994 Steel wire for fusion welding GB/T14957-1994 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Steel wires for melt welding
1 Subject content and scope of application
GB/T14957-94
Replaces GB130077
This standard specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, transportation, storage marks and quality certificates of steel wires for melt welding (referred to as wire). This standard is mainly applicable to cold-drawn steel wires for electric welding, submerged arc welding and semi-automatic welding, electroslag welding and gas welding. 2 Reference standards
Test sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished products GB223 Chemical analysis method for steel and alloy
GB2103 General provisions for acceptance, packaging, marking and quality certificate of steel wire GB/T3429 Steel wire rod for welding
3 Dimensions, shape, weight
3.1 Dimensions and allowable deviations
3.1.1 The diameter of the steel wire and its allowable deviation shall comply with the provisions of Table 1. Table 1
Ordinary precision
3.1.2 The out-of-roundness of the steel wire shall not exceed half of the diameter tolerance. Supplement
Higher precision
— 0. 06
3.1.3 According to the agreement between the supply and demand parties, steel wire of intermediate size can also be supplied: the allowable deviation of its size shall be the initial value of the adjacent larger size in Table 1.
3.1.4 Steel wires requiring higher precision or other precision should be specified in the contract. 3.2 Appearance
Approved by the State Administration of Technical Supervision on June 13, 1994 and implemented on January 1, 1995
GB/T 14957—94
3.2. 1 The bundles (coils) of steel wires shall be neat and not scattered or in the shape of "-C". 3.2.2 According to the agreement between the supplier and the buyer, steel wires in other delivery states may also be supplied. 3.3 Weight
3.3.1 The inner diameter of the bundle (coil) of steel wires and the weight of each bundle (coil) of steel wires shall comply with the provisions of Table 2. Table 2
The weight of each bundle (coil>, kg shall not be less than
The nominal diameter
The inner lightness of the vehicle (coil)
Not less than, tam
Carbon structural steel
3.3.2 The minimum weight of the steel wire bundle (coil) in each batch of supply shall not exceed 10% of the total weight of each batch. 3.4 Marking example
Example 1 H08MnA Steel wire with a diameter of 4. 0 mm is marked as; H08MnA4. 0 -GB 14957—94
Example 2110Mn2 steel wire with a head diameter of 5.0mm is marked as H10Mn2-—5.0—GB 14957—94
4 Technical requirements
4.1 The wire rod used to manufacture the steel wire shall comply with the provisions of GB3129% welding steel wire rod. 4.2 The brand and chemical composition of the steel wire shall comply with the provisions of Table 3. Alloy structure
4.2.1 According to the agreement between the supply and demand parties. H08A, H08E, H08C non-boiling steels are allowed to have a silicon content of no more than 0.10% Table 3
H08MnA
0. 11 --0. 35 --
0. 11 -~0. 80 ~-
0. 030. 200. 30
0. 030. 200. 30
350.030.100.10
20. 7≤0. 20 0. 30
0. 03 0. 20≤0. 30
0. 030 200. 30
0.4301.030
0. 0150.015
0.0360.030
0.0300.030
0.0350.035
H08Mn2S
H08M n2SiA
HGMnSi
HIOMnSiMa
12HIUMnSiMoTiA
HORMnMaA
H08Mn2Mo A
I10Mn2MaA
HO8Mn2MoVA
TI1OMn2MoVA
HoCrMoA
HI3CrMoA||t t||H18CIMoA
O8CrMaVA
H08CINMoA
H3(CrMnSiA
HIOMoCrA
GB/T 14957
Continued Table 3bzxZ.net
0.20≤0.30
1. 700. 63--
0. 08~-1. 00--
0. 06~1. 60 --
0. 08~1. 70~
0. 11-0. 40~
20. 200. 30
0. 200. 30
$0.200.30
0. 25≤0. 20n 30
0,1040.200.30
0.250.200.3
0.70~/1. 40~
0. 35 1 0. 65
Note: According to the agreement between the supplier and the buyer, grades other than those in Table 3 can also be supplied. 4.2.2
Please specify.
(1, 81
C, 60--
1, 40~
0.50~0.15~-
(Add people to make up)
(Add people to make up)
(Add people to make up)
(Amount)
(Add)
.0. 20
0.0350.035
0.0350.035
8.0300. 030 | | tt | | 0.0350.035 | 030
0.0300.030
0.0250.030
0.C300.030
0.0250,030
0.0250.025
0.030: 8.030
If the supplier can guarantee that the residual elements, nickel and copper content in the steel are not considered as finished product analysis, the melting analysis composition shall be in the quality certificate. 4.3 Surface quality of steel wire
4.3.1 The surface of the steel wire shall be smooth, and no harmful defects such as cracks, folds, scars, scale and rust visible to the naked eye shall exist. 4.3.2 The surface of the steel wire is allowed to have scratches not exceeding half of the allowable deviation of the head diameter and local defects not exceeding the diameter deviation. 3 Copper-plated steel wires can be supplied by agreement between the supplier and the buyer. The copper-plated surface shall be smooth, and no cracks, spots and rust visible to the naked eye shall exist. 4. 3.3
5 Test method
GB/T 14957
The final test items, test methods, sampling locations and sampling quantities of each batch of steel shall comply with the provisions of Table 4. Table 4
Test material
Chemical composition
Test method
6 Acceptance, packaging, transportation, storage, marking and quality certificate of steel wire 6.1 The acceptance rules of steel wire shall be implemented in accordance with the relevant provisions of GB2103. 6.2 Packaging, transportation, storage, marking and quality certificate 1. 6.2.1 The packaging of coiled steel wire shall comply with Class II provisions of GB2103. 6.2.2 The packaging of steel wire in other delivery states shall be in accordance with the provisions agreed upon by the supply and demand parties. Sampling location
Any location
Sampling location
6.2.3 All steel wires to be selected shall not be exposed to large Stacking, and measures to prevent rain and moisture during transportation. 6.2.4 The marking and quality certificate of steel wire shall comply with the provisions of GB2103. Additional notes:
This standard is proposed by the Ministry of Metallurgy of the People's Republic of China. This standard is issued by the Standard Research Institute of the Ministry of Metallurgy. This standard was drafted by Tianjin Welding Wire Factory and the Iron and Steel Research Institute of the Ministry of Metallurgy. The main drafters of this standard are Li Ronggan, Chen Zhiru, Xu Zuze, Peng Yun, and Feng Wenhua. The level mark of this standard is GB/T14957941. The sampling number is
3%, not less than 2 handfuls (reels)
Bundle (reel)
Bundle (reel)
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