This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of electrical round aluminum rods. This standard applies to hot-rolled electrical round aluminum rods for drawing round aluminum wires for wire and cable conductive cores, aluminum wires and other electrical aluminum conductors. GB/T 3954-2001 Electrical round aluminum rods GB/T3954-2001 standard download decompression password: www.bzxz.net

GB/T3954-2001
This standard revise GB/T3954-1983 "Electrical Round Aluminum Rod" with reference to relevant standards of the United States and Germany (ASTMB233:1997 and FN1715.2:1997 in DIN). According to the production and use over the years, this standard divides the electrical round aluminum rod into pure aluminum electrical round aluminum rod and rare earth aluminum electrical round aluminum rod. This standard adopts the internationally common state code naming method and determines the state code according to GB/T164751996 "Deformed Aluminum and Aluminum Alloy State".
This standard is expanded to 5 varieties on the basis of the original standard, and the tensile strength range is re-divided, and the elongation is adjusted accordingly to meet the different tensile strength requirements of drawing different aluminum wires. This standard cancels the torsion test, and at the same time makes clear provisions for the inspection rules in accordance with the requirements of GB/T1.3--1997 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 3: Regulations for Writing Product Standards". This standard will replace GB/T3954-1983 from the date of implementation. This standard is proposed by the China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the China Nonferrous Metals Industry Standard Metrology and Quality Research Institute. The drafting units of this standard: Baotou Aluminum (Group) Co., Ltd., Jilin Aluminum Company, Fujian Nanping Aluminum Factory. The main drafters of this standard: Wang Yunli, Han Xiaoyi, Han Zaiguang, Gao Guoping, Wang Yanji, Zhang Liufeng. 40
1 Scope
National Standard of the People's Republic of China
Aluminium rod for electrical purposeGB/T 3954-2001
Replaces GR/T3954---1983
This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation and storage of electrical round aluminum rods. This standard applies to hot-rolled electrical round aluminum rods for drawing round aluminum wires, aluminum wires and other aluminum conductors for electrical purposes for the conductive cores of wires and cables. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T3048.2-1994 Test methods for electrical properties of wires and cables Test methods for resistivity of metallic conductor materials GB/T4909.2-1985 Test methods for bare wires Dimension measurement GB/T4909.3-1985 Test methods for bare wires Tensile test GB/T6987-2001 Chemical analysis methods for aluminum and aluminum alloys YS/T 309-1998
3 Requirements
3.1 Product classification
Aluminum and rare earth alloy ingots for remeltingWww.bzxZ.net
3.1.1 Electrician round aluminum rods are divided into pure aluminum electrician round aluminum rods and rare earth aluminum electrician round aluminum rods according to the chemical composition of the materials. 3.1.2 The model, state and diameter of electrician round aluminum rods are shown in Table 1. Table 1 Model, state and diameter
Pure aluminum electrical round aluminum rod
Rare earth aluminum electrical round aluminum rod
3.1.3 Marking example
A2, A4, A6, A8
RE-A2, RE-A4.RE-A6, RE-A8
Model A2, pure aluminum electrical round aluminum rod with a diameter of 9.5 mm is marked as: Pure aluminum electrical round aluminum rod A2$9.5GB/T3954-2 001 Model RE-A2, rare earth aluminum electrical round aluminum rod with a diameter of 9.5mm is marked as: Rare earth aluminum electrical round aluminum rod RE-A2$9.5GB/T3954-—20013.2 Material chemical composition
Diameter, mm
9.0～20.0
Pure aluminum electrical round aluminum rod and rare earth aluminum electrical round aluminum rod should be made of pure aluminum and rare earth aluminum (or pure aluminum plus rare earth) respectively with the chemical composition specified in Table 2.
Approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on July 10, 2001 and implemented on November 21, 2001
Rare earth aluminum
GB/T 3954—2001
Table 2 Chemical composition of materials
Chemical composition, %
Not more than
Other elements
Not less than
Note: Under normal circumstances, when the mechanical properties and electrical properties of the product are qualified, the chemical composition may not be used as an acceptance indicator. If the purchaser has special requirements for the chemical composition, it should be indicated in the contract
3.3 Diameter deviation
The diameter deviation and out-of-roundness of electrical round aluminum rods shall comply with the provisions of Table 3. Table 3 Diameter deviation, out-of-roundness
9.0~-12.0
12.5~~20.0
Note: Out-of-roundness is the difference between the maximum and minimum diameters measured on the same section of the round aluminum rod perpendicular to the axis. 3.4 Mechanical and electrical properties
The mechanical and electrical properties of electrical round aluminum rods shall comply with the requirements of Table 4. Table 4 Mechanical and electrical properties
A and RE-A
A2 and RE-A2
A4 and RE-A4
A6 and RE-A6
A8 and RE-A8
3.5 Surface quality
Tensile strength, MPa
80~110
95～115
110~130
120~150
3.5.1 Electrical round aluminum rods should be round and uniform in size. Elongation, %
Not less than
Out of roundnessNot greater than
Resistivity (20C), n0·m
Not greater than
3.5.2 The surface of the electrician round aluminum rod should be clean, and there should be no defects such as edge distortion, misalignment, cracks, inclusions, kinks, and other defects that are harmful to use. Minor mechanical scratches, scars, pits, peeling or flashing are allowed. 3.6 Delivery weight
3.6.1 Electrician round aluminum rods should be supplied in rolls, with large rolls of 1000kg and above and small rolls of 300kg～<1000kg. 3.6.2 The large roll of electrician round aluminum rods shall not exceed 2 pieces per roll, and each piece shall not be less than 500kg, and the small roll shall be 1 piece per roll. Unless otherwise agreed, round aluminum rods are not allowed to be welded or twisted.
3.6.3 Based on the agreement between the two parties, electrical round aluminum rods of any weight are allowed to be delivered. 4 Test methods
4.1 The arbitration analysis method for chemical composition shall be carried out in accordance with the provisions of GB/T6987, and the determination of the total amount of rare earth shall be carried out in accordance with the provisions of Appendix A and Appendix B in YS/T309--1998.
4.2 The tensile strength and elongation tests shall be carried out in accordance with the provisions of GB/T4909.3. 42
GB/T 3954-2001
4.3 The resistivity test shall be carried out in accordance with the provisions of GB/T3048.2. 4.4 The diameter deviation measurement shall be carried out in accordance with the provisions of GB/T4909.2. 4.5 The surface quality shall be visually inspected.
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 Electric round aluminum rods shall be inspected by the supplier's technical supervision department to ensure that the product quality meets the requirements of this standard and fill in the quality certificate.
5.1.2 The buyer shall inspect the received products according to the provisions of this standard. If the inspection results do not meet the requirements of this standard, the buyer shall submit the inspection to the supplier within 1 month from the date of receipt of the product, and the supplier and buyer shall negotiate to resolve the issue. If arbitration is required, the supplier and buyer shall jointly take samples at the buyer's side. 5.2 Batch
Electrical round lead rods shall be submitted for inspection in batches. Each batch shall consist of products of different sizes, states and diameters, and the mass of each batch shall not exceed 15 tons. 5.3 Inspection items
Each batch of electric round aluminum rods shall be inspected for chemical composition, dimensional deviation, mechanical properties, electrical properties and appearance. 5.4 Sampling
The sampling position and sampling quantity of electric round aluminum rods shall comply with the requirements of Table 5. Table 5 Sampling position and sampling quantity
Inspection items
Chemical composition
Mechanical properties
Electrical properties
Dimensional deviation
Surface quality
1) When sampling from the finished product, one should be taken from each batch. 5.5 Determination and processing of inspection results
Sampling position
Any part
Any part
Sampling quantity
1 for each melting
Take 1 sample for each large roll and 1 sample for each 2 rolls of small rolls
5.5.1 The inspection results of chemical composition, mechanical properties and electrical properties shall be judged as qualified or unqualified by the rounding comparison method. 5.5.2 If any sample does not meet the requirements of 3.4, two more samples should be taken from the roll represented by the unqualified sample for re-inspection. If there are still unqualified samples, the roll is deemed unqualified. For small rolls, if any of the samples does not meet the requirements of 3 and 4, the roll is deemed scrapped, and the remaining rolls are inspected one by one, and the qualified ones are delivered.
5.5.3 When the size deviation is unqualified, the roll is judged to be unqualified, but the supplier is allowed to inspect each roll, and the qualified ones will be delivered. 5.5.4 When the surface quality is unqualified, the roll is judged to be unqualified, but the supplier is allowed to cut off the unqualified part and re-inspect, and the qualified ones will be delivered. 5.5.5 The chemical composition shall be implemented according to the contract requirements of the supply and demand parties. If it is unqualified, the batch shall be judged to be unqualified. 6 Marking, packaging, transportation, storage
6.1 Marking
A label shall be attached to each roll of electrical round aluminum rod that passes the inspection, which shall indicate: supplier name, product name, diameter, model, factory batch number and H period, standard number.
6.2 Packaging
Electrical round aluminum rods shall be packaged in rolls and well tied. It is allowed to package according to the agreement between the two parties. 6.3 Transportation and storage
During handling, transportation and storage, care should be taken to protect the surface of the electrical round aluminum rod from mechanical damage and contamination. 43
Quality certificate
GB/T3954—2001
Each batch of electrical round aluminum rods shall be accompanied by a product quality certificate, indicating: a) supplier name;
b) product name;
c) model;
d) diameter;
e) factory batch number;
f) net weight and number of pieces;
g) inspection results and stamp of the technical supervision department: h) number of this standard;
i) date of publication.
Contents of order contract
The order contract listed in this standard includes the following contents: a) product name;
b) quantity;
c) diameter;
d) model and state;
e) wire coil weight;
f) number of this standard:
g) other special requirements.
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