Some standard content:
ICS 77. 140. 60
National Standard of the People's Republic of China
GB/T 3080—2001
High speed tool steel wire
High speed tool steel wire
Promulgated on September 15, 2001
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Implementation on February 1, 2002
GB/T3080—2001
This standard has been revised to include the grades W9Mo3Cr4V and W4Mo3Cr4VSi, the requirements for residual elements Ni and Cu for all grades, ordering instructions, and the allowable deviation of annealed steel wire diameter has been changed to comply with the provisions of GB/T342-1997 "Dimensions, shape, weight and allowable deviations of cold-drawn round steel wire, square steel wire and hexagonal steel wire". From the date of implementation of this standard, it replaces GB/T3080-1982 High speed tool steel wire. This standard is proposed by the State Metallurgical Bureau Industry Bureau. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard is initiated by Dalian Iron and Steel Group Corporation and Metallurgical Industry Information Standard Research Institute. The main drafters of this standard are: Chang Guiqing, Zhen Juan, Li Zhongzhi, Zhang Xiaojun, Tang Ben. It was first published in May 1982.
1 Scope
National Standard of the People's Republic of China
High speed tool steel wire
High spced tool steel wire
GB/T 30802001
Replaces GB/T 3080-1982
This standard specifies the classification code, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high speed tool steel wire. This standard is applicable to the round steel wire used to manufacture various tools, and can also be applied to the round steel wire used to manufacture needle valves and other purposes. 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 are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. Chemical analysis methods for steel, iron and alloys-Ammonium persulfate oxidation volumetric method for determination of chromium content GB/T 223.11-199I
GB/1'223.13--2000 Chemical analysis methods for steel, iron and alloys-Ammonium ferrous sulfate titration method for determination of vanadium content GB/I 223.19-1989
Chemical analysis methods for steel, iron and alloys-The new cuproline·dichloromethane benzene photometric method for determination of copper content-The dichromatic photometric method for determination of nickel content
Chemical analysis methods for steel, iron and alloys
GB/T 223.23-1994
GB/T 223.26: -1989
GB/T 223.281989
GB/T 223.43:-1994
GB/T 223. 58—1987
GB/T 223.591987
G3/T 223. 60... 1997
Methods for Chemical Analysis of Iron, Steel and Alloy
Determination of Molybdenum Content by Direct Photometric Method with Fluorosulfate
Determination of Nitrogen Content by Gravimetric Method with α-benzoin
Methods for Chemical Analysis of Iron, Steel and Alloy
Methods for Chemical Analysis of Iron, Steel and Alloy
Determination of Tungsten Content by Sodium Arsenite Titration
Determination of Phosphorus Content by Antimony-Phosphorus Blue Photometric Method
Determination of Silicon Content by Gravimetric Method with Pernitrogen Acid Dehydration
Methods for Chemical Analysis of Iron, Steel and Alloy
Determination of Phosphorus Content by Extraction with Butyl Acetate||Methods for Chemical Analysis of Iron, Steel and Alloy
GB/T 223.62—1988
GB/F 223.63—1988
GB/T 223. 67--1989
GB/T 223. 69-1997
G[3/T 223. 7)—1997
GB/T 224--1987
GB/T 230---1991
GB/I 231—1984
Methods for chemical analysis of iron, steel and alloysThe sodium (potassium) periodate photometric method for the determination of manganese contentMethods for chemical analysis of iron, steel and alloysThe reduction distillation-methylene blue photometric method for the determination of sulfur contentMethods for chemical analysis of iron, steel and alloysThe gas volumetric method for the determination of carbon content after combustion in a tubular furnaceChemical analysis of titanium and alloys
Gravimetric method for the determination of carbon content after combustion in a tubular furnaceDetermination of the depth of decarburization layer in steel
Methods for testing the Rockwell hardness of metals
Methods for testing the Brinell hardness of metals
7 Size, shape, weight and allowable deviation of cold-drawn round, square and hexagonal steel wireGB/T 342—1997
GH/T 2103—1988
General provisions for acceptance, packaging, marking and quality certificate of steel wireGB/T 3207—1988
GB/T4340.1—1999Metal Vickers hardness test methodGB/T9943:1988Technical conditions for high-speed tool steel barsGJ3/1 [3298—1991
Metal micro-knit test method
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China2001-09-15Published2002-02-01 Implementation
3 Classification and code
Steel materials are classified according to the delivery status as follows:
Annealed TA
Annealed polished SP
4 Ordering instructions
GB/T3080-2001
The contract for ordering in accordance with this standard shall contain the following contents: a) Product name;
b) Brand;
c) Specification;
d) Weight (or quantity);
e) Delivery status;
f) Other requirements proposed by the purchaser.
5 Dimensions, shape, weight and allowable deviations
5.1 Dimensions
5.1.1 The diameter range of steel wire is 1.00m~16.0mm. 5.1.2 The diameter and allowable deviation of annealed steel wire shall comply with the provisions of Grades 9 to 11 in Table 3 of GB/T342-1997. The specific grade shall be indicated in the contract. If not indicated, it shall be supplied as Grade 11. 5.1.3 The diameter and allowable deviation of polished wire shall comply with the provisions of Grades 9 to 11 in Table 2 of GB/T3207-1988. The specific grade shall be indicated in the contract. If not indicated, it shall be supplied as Grade 11. 5.1.4 According to the requirements of the purchaser, after negotiation between the supply and demand parties and indicated in the contract, steel wire with special size deviation can be supplied. 5.2 Appearance
5.2.1 The steel wire can be delivered in coil or straight bar. The specific delivery state shall be indicated in the contract. When delivered in coil, its minimum coil weight shall comply with the provisions of Table 1. When delivered in straight bar state, its normal length shall comply with the provisions of Table 2. Short lengths in accordance with the provisions of Table 2 are allowed to be supplied, and the weight of the short length shall not exceed 10% of the total weight of the batch. Table 1 Minimum coil weight of steel wire
Nominal diameter of steel wire/mm
Nominal diameter of steel wire/rm
1. 00~-3. 0
≥3. 00- 6. 00
Table 2 Length of straight steel wire
Through length/mm
1 000~~2 000
2 000~4 000
20006 000
Drum weight/kgNot less than
Short length/mm'Not less than
5.2.2 Upon the request of the purchaser and specified in the contract, straight steel wire can be delivered in fixed length or multiple lengths, and the allowable deviation of its length should not be greater than 50mm. 5.2.3 The curvature of annealed straight steel wire shall not exceed 2mm per meter, and the curvature of polished straight steel wire shall not exceed 1mm per meter. The end deformation is calculated from the nominal size, and the increase in the end diameter shall not exceed the diameter tolerance. 5.2.4 The out-of-roundness of the steel wire shall not exceed half of the nominal diameter tolerance of the steel wire. 2
6 Technical requirements
6.1 Brand and chemical composition
GB/T 30B0—2001
6.1.1 The steel grade and chemical composition (melting analysis) shall comply with the provisions of Table 3. Table 3 Chemical composition (melting analysis)
Number Grade
T51841
T66541
r69341
T64340
W18Cr4V
W6Mu5Cr4V2
W9Mo3Cr4V
W4Mo3Cr4VSi
Not more than
) Residual elements w(Ni)≤0.30%+w(Cu)≤0.25% in all grades of steel. ②W6Mo5Cr4V2 can be supplied upon agreement between the supply and demand parties, (V) 1.60%～2.20%0.030
6.1.2Steel grades with other grades or special chemical composition ranges can be supplied upon agreement between the supply and demand parties. 6.1.3The allowable deviation of chemical composition of steel wire shall comply with the provisions of Table 4. Table 4 Allowable deviation of chemical composition of steel wire
6.2Smelting method
Steel used for manufacturing steel wire shall be smelted in an electric arc furnace. 6.3Delivery state
Scope of application
Table 3 stipulates
The delivery state of steel wire is annealed (including straight bars or coils) or annealed and polished. 6.4Mechanical properties
Full deviation
6.4.1Steel wire with a diameter of not less than 5mm shall be tested for cloth hardness, and the hardness value shall be 207~255HBS. Steel wire with a diameter less than 5 mm shall be tested for Vickers hardness, and its hardness value shall be 206～256 HV. If the supplier can ensure that it is qualified, no inspection is required. 6.4.2 Steel wire samples shall be tested for annealing-tempering hardness, and the heat treatment system and hardness value of the samples shall comply with the provisions of Table 5. 6.4.3 If the supplier can ensure that the annealing-tempering hardness of the steel wire samples complies with the provisions of Table 5, no inspection is required. 3
WiBCr4V
W6Mo5Cr4V2
W9Mn3C4V
W4Mo3Cr4VSi
6.5 times the structure
6.5.1 uneven carbide shape
GB/T3080—2001
Table 5 Steel wire sample rate annealing-tempering hardness test sample heat treatment system
Rate annealing temperature/℃
1270~1285
1 210~-1 230
1220~1240
1170～1190
Coolant
Same fire temperature/℃
550-570
550-570
540--560
540--560
Hardness value HRC
Not less than
W18Cr1V steel wire should be tested for carbide unevenness, and the result shall not be greater than level 2 according to the first level chart in GB/T9943--1988.
6.5.2 Carbide particle size
The carbide particle size of W6Ma5Cr4V2.W4Mo3Cr4VSi steel wire shall not be greater than 12.5 μm. The carbide particle size of W9Mo3Cr4V steel wire shall not be greater than 15um.
6.5.3 Decarburization layer
6.5.3.1 The total decarburization layer (ferrite + transition layer) depth of one side of cold drawn annealed steel wire shall comply with the provisions of Table 6 (D in Table 6 is the wire diameter). When the purchaser requires a set of decarburization layers of W6Ma5Cr4V2 and W9Mo3Cr4V, it shall be indicated in the contract. Table 6 Total decarburization layer on one side of steel wire
W18Cr4V
W6Mo5Cr4V2
WgMosCr4V
W4Me$Cr4VSi
Nominal diameter/mm
1. 00~~16. 0
1. 30~ 16. 0
6.5.3.2 There should be no decarburization on the surface of polished steel wire
6.6 Surface quality
Total decarburization layer depth/mm
1 group: 0
Not more than
2 group: 1.% P
2 group: 1.0% D
6.6.1 The surface of cold drawn annealed wire should be smooth, without defects such as cracks, scars, folds and rips. The oxide film and individual pits with a depth not exceeding half of the diameter tolerance, scratches and pits are allowed to exist. 6.6.2 The surface of the polished steel wire should be clean and bright, and there should be no external defects such as cracks, hairlines, concave surfaces, scratches, black spots, scars, folds, and cracks. 6.6.3 For annealed straight steel wire, spiral patterns not exceeding the diameter tolerance are allowed to exist. There should be no burrs at the ends of the straight steel wire. 7 Test method
7.1 Steel. The inspection items, sampling locations and test methods should comply with the provisions of Table 7. 7.2 The carbide particle size test of steel wire should be carried out on the transverse sample of the annealed steel wire. And the most serious part in the field of view should be evaluated. The measurement method of carbide particle size is:
Carbide particle size
Where: A
The maximum size of carbide particles in any direction: the maximum size of embedded carbide particles perpendicular to the A direction. A+B
8 Inspection rules
8.1 Inspection and acceptance
GB/T3080—2001
Table 7 Inspection items, test methods, sampling locations and quantities Inspection items
Chemical composition
Annealing hardness
Quick quenching hardness
Decarburized layer
Carbide unevenness
Phosphide particle size
Sampling quantity
1 per furnace
Successive coils (pieces)
Each coil (piece)
The inspection and acceptance of the wire shall be carried out in accordance with the provisions of GB/T2103. 8.2Batch rules
Sampling location
GB/T222
Non-cooking support (coil) steel wire
Test method
GB/T 223
GB/T 231
GB/T230
GB/T 224
GB/T 13298
Micrometer
Steel wires shall be inspected and accepted in batches. Each batch shall consist of steel wires of the same smelting furnace number, same size, same heat treatment furnace, and same delivery status.
8.3 Sampling quantity
The sampling quantity of steel wires shall comply with the provisions of Table 7. 8.4 Re-inspection and determination rules
The re-inspection and determination rules for steel wire shall comply with the provisions of GB/T2[03 9 Packaging, marking and quality certificate
The marking and quality certificate of steel wire shall comply with the provisions of GB/T2103. The packaging of steel wire, coils shall comply with the provisions of Class I packaging in GB/T2103; straight strips are generally coated with anti-rust oil and then packed in boxes. If required by the purchaser and indicated in the contract, Class I packaging may also be used. People's Republic of China
National Standard
Speed Tools
GB/T3080—2001
Published by China Standards Press
No.16, Langguo Hebei Street, Fuxingmenwai, Beijing
Postal Code: 100045
Tel: 6852391668517548
Printed by Qinhuangdao Printing Factory of China Standards Press Issued by Beijing Distribution Office of Xinhua Bookstore
Sold by Xinhua Bookstores in various places
Format 880×123 1/16 Printing Sheet 3/4
Number of Words 12 Qianxue
First edition in October 2001, first printing in October 2101, print run 1-2000
Book number: 155066·1-17941
Price: 8.00 yuan
Website: bzchs.com
Copyright reserved
All rights reservedIf the supplier can guarantee the quality, no inspection is required. 6.4.2 The steel wire sample should be tested for annealing-tempering hardness. The heat treatment system and hardness value of the sample should comply with the provisions of Table 5. 6.4.3 If the supplier can ensure that the annealing-tempering hardness of the steel wire sample complies with the provisions of Table 5, no inspection is required. 3
WiBCr4V
W6Mo5Cr4V2
W9Mn3C4V
W4Mo3Cr4VSi
6.5 Business times organization
6.5.1 Uneven carbide shape
GB/T3080—2001
Table 5 Steel wire sample annealing-tempering hardness test Sample heat treatment system
Annealing temperature/℃
1270~1285
1 210~-1 230
1220~1240
1170～1190
Coolant
Same fire temperature/℃
550-570
550-570
540--560
540--560
Hardness value HRC
Not less than
W18Cr1V steel wire should be tested for carbide unevenness, and the result shall not be greater than level 2 according to the first level chart in GB/T9943--1988.
6.5.2 Carbide particle size
The carbide particle size of W6Ma5Cr4V2.W4Mo3Cr4VSi steel wire shall not be greater than 12.5 μm. The carbide particle size of W9Mo3Cr4V steel wire shall not be greater than 15um.
6.5.3 Decarburization layer
6.5.3.1 The total decarburization layer (ferrite + transition layer) depth of one side of cold drawn annealed steel wire shall comply with the provisions of Table 6 (D in Table 6 is the wire diameter). When the purchaser requires a set of decarburization layers of W6Ma5Cr4V2 and W9Mo3Cr4V, it shall be indicated in the contract. Table 6 Total decarburization layer on one side of steel wire
W18Cr4V
W6Mo5Cr4V2
WgMosCr4V
W4Me$Cr4VSi
Nominal diameter/mm
1. 00~~16. 0
1. 30~ 16. 0
6.5.3.2 There should be no decarburization on the surface of polished steel wire
6.6 Surface quality
Total decarburization layer depth/mm
1 group: 0
Not more than
2 group: 1.% P
2 group: 1.0% D
6.6.1 The surface of cold drawn annealed wire should be smooth, without defects such as cracks, scars, folds and rips. The oxide film and individual pits with a depth not exceeding half of the diameter tolerance, scratches and pits are allowed to exist. 6.6.2 The surface of the polished steel wire should be clean and bright, and there should be no external defects such as cracks, hairlines, concave surfaces, scratches, black spots, scars, folds, and cracks. 6.6.3 For annealed straight steel wire, spiral patterns not exceeding the diameter tolerance are allowed to exist. There should be no burrs at the ends of the straight steel wire. 7 Test method
7.1 Steel. The inspection items, sampling locations and test methods should comply with the provisions of Table 7. 7.2 The carbide particle size test of steel wire should be carried out on the transverse sample of the annealed steel wire. And the most serious part in the field of view should be evaluated. The measurement method of carbide particle size is:
Carbide particle size
Where: A
The maximum size of carbide particles in any direction: the maximum size of embedded carbide particles perpendicular to the A direction. A+B
8 Inspection rules
8.1 Inspection and acceptance
GB/T3080—2001
Table 7 Inspection items, test methods, sampling locations and quantities Inspection items
Chemical composition
Annealing hardness
Quick quenching hardness
Decarburized layer
Carbide unevenness
Phosphide particle size
Sampling quantity
1 per furnace
Successive coils (pieces)
Each coil (piece)
The inspection and acceptance of the wire shall be carried out in accordance with the provisions of GB/T2103. 8.2Batch rules
Sampling location
GB/T222
Non-cooking support (coil) steel wire
Test method
GB/T 223
GB/T 231
GB/T230
GB/T 224
GB/T 13298
Micrometer
Steel wires shall be inspected and accepted in batches. Each batch shall consist of steel wires of the same smelting furnace number, same size, same heat treatment furnace, and same delivery status.
8.3 Sampling quantity
The sampling quantity of steel wires shall comply with the provisions of Table 7. 8.4 Re-inspection and determination rules
The re-inspection and determination rules for steel wire shall comply with the provisions of GB/T2[03 9 Packaging, marking and quality certificate
The marking and quality certificate of steel wire shall comply with the provisions of GB/T2103. The packaging of steel wire, coils shall comply with the provisions of Class I packaging in GB/T2103; straight strips are generally coated with anti-rust oil and then packed in boxes. If required by the purchaser and indicated in the contract, Class I packaging may also be used. People's Republic of China
National Standard
Speed Tools
GB/T3080—2001
Published by China Standards Press
No.16, Langguo Hebei Street, Fuxingmenwai, Beijing
Postal Code: 100045
Tel: 6852391668517548
Printed by Qinhuangdao Printing Factory of China Standards Press Issued by Beijing Distribution Office of Xinhua Bookstore
Sold by Xinhua Bookstores in various places
Format 880×123 1/16 Printing Sheet 3/4
Number of Words 12 Qianxue
First edition in October 2001, first printing in October 2101, print run 1-2000
Book number: 155066·1-17941
Price: 8.00 yuan
Website: bzchs.com
Copyright reserved
All rights reservedIf the supplier can guarantee the quality, no inspection is required. 6.4.2 The steel wire sample should be tested for annealing-tempering hardness. The heat treatment system and hardness value of the sample should comply with the provisions of Table 5. 6.4.3 If the supplier can ensure that the annealing-tempering hardness of the steel wire sample complies with the provisions of Table 5, no inspection is required. 3
WiBCr4V
W6Mo5Cr4V2
W9Mn3C4V
W4Mo3Cr4VSi
6.5 Business times organization
6.5.1 Uneven carbide shape
GB/T3080—2001
Table 5 Steel wire sample annealing-tempering hardness test Sample heat treatment system
Annealing temperature/℃
1270~1285
1 210~-1 230
1220~1240
1170～1190
Coolant
Same fire temperature/℃
550-570
550-570
540--560
540--560
Hardness value HRC
Not less than
W18Cr1V steel wire should be tested for carbide unevenness, and the result shall not be greater than level 2 according to the first level chart in GB/T9943--1988.
6.5.2 Carbide particle size
The carbide particle size of W6Ma5Cr4V2.W4Mo3Cr4VSi steel wire shall not be greater than 12.5 μm. The carbide particle size of W9Mo3Cr4V steel wire shall not be greater than 15um.
6.5.3 Decarburization layer
6.5.3.1 The total decarburization layer (ferrite + transition layer) depth of one side of cold drawn annealed steel wire shall comply with the provisions of Table 6 (D in Table 6 is the wire diameter). When the purchaser requires a set of decarburization layers of W6Ma5Cr4V2 and W9Mo3Cr4V, it shall be indicated in the contract. Table 6 Total decarburization layer on one side of steel wire
W18Cr4V
W6Mo5Cr4V2
WgMosCr4V
W4Me$Cr4VSi
Nominal diameter/mm
1. 00~~16. 0
1. 30~ 16. 0
6.5.3.2 There should be no decarburization on the surface of polished steel wire
6.6 Surface quality
Total decarburization layer depth/mm
1 group: 0
Not more than
2 group: 1.% P
2 group: 1.0% D
6.6.1 The surface of cold drawn annealed wire should be smooth, without defects such as cracks, scars, folds and rips. The oxide film and individual pits with a depth not exceeding half of the diameter tolerance, scratches and pits are allowed to exist. 6.6.2 The surface of the polished steel wire should be clean and bright, and there should be no external defects such as cracks, hairlines, concave surfaces, scratches, black spots, scars, folds, and cracks. 6.6.3 For annealed straight steel wire, spiral patterns not exceeding the diameter tolerance are allowed to exist. There should be no burrs at the ends of the straight steel wire. 7 Test method
7.1 Steel. The inspection items, sampling locations and test methods should comply with the provisions of Table 7. 7.2 The carbide particle size test of steel wire should be carried out on the transverse sample of the annealed steel wire. And the most serious part in the field of view should be evaluated. The measurement method of carbide particle size is:
Carbide particle size
Where: A
The maximum size of carbide particles in any direction: the maximum size of embedded carbide particles perpendicular to the A direction. A+B
8 Inspection rules
8.1 Inspection and acceptance
GB/T3080—2001
Table 7 Inspection items, test methods, sampling locations and quantities Inspection items
Chemical composition
Annealing hardness
Quick quenching hardness
Decarburized layer
Carbide unevenness
Phosphide particle size
Sampling quantity
1 per furnace
Successive coils (pieces)
Each coil (piece)
The inspection and acceptance of the wire shall be carried out in accordance with the provisions of GB/T2103. 8.2Batch rules
Sampling location
GB/T222
Non-cooking support (coil) steel wire
Test method
GB/T 223
GB/T 231
GB/T230
GB/T 224
GB/T 13298
Micrometer
Steel wires shall be inspected and accepted in batches. Each batch shall consist of steel wires of the same smelting furnace number, same size, same heat treatment furnace, and same delivery status.
8.3 Sampling quantity
The sampling quantity of steel wires shall comply with the provisions of Table 7. 8.4 Re-inspection and determination rules
The re-inspection and determination rules for steel wire shall comply with the provisions of GB/T2[03 9 Packaging, marking and quality certificate
The marking and quality certificate of steel wire shall comply with the provisions of GB/T2103. The packaging of steel wire, coils shall comply with the provisions of Class I packaging in GB/T2103; straight strips are generally coated with anti-rust oil and then packed in boxes. If required by the purchaser and indicated in the contract, Class I packaging may also be used. People's Republic of China
National Standard
Speed Tools
GB/T3080—2001
Published by China Standards Press
No.16, Langguo Hebei Street, Fuxingmenwai, Beijing
Postal Code: 100045
Tel: 6852391668517548
Printed by Qinhuangdao Printing Factory of China Standards Press Issued by Beijing Distribution Office of Xinhua Bookstore
Sold by Xinhua Bookstores in various places
Format 880×123 1/16 Printing Sheet 3/4
Number of Words 12 Qianxue
First edition in October 2001, first printing in October 2101, print run 1-2000
Book number: 155066·1-17941
Price: 8.00 yuan
Website: bzchs.com
Copyright reserved
All rights reserved% P
2 Group: 1.0%D
6.6.1 The surface of cold drawn annealed wire shall be smooth and free from defects such as cracks, scars, folds and cracks. Defects such as oxide film and individual pits with a depth not exceeding half of the diameter tolerance, scratches and pits are allowed. 6.6.2 The surface of polished steel wire shall be clean and bright and free from external defects such as cracks, hairlines, concave surfaces, scratches, black spots, scars, folds and cracks. 6.6.3 For annealed straight steel wire, spiral patterns not exceeding the diameter tolerance are allowed. There shall be no burrs at the ends of the self-stranded steel wire. 7 Test method
7.1 Steel. The inspection items, sampling locations and test methods shall comply with the provisions of Table 7. 7.2 The carbide particle size test of steel wire shall be carried out on the transverse specimen of the annealed steel wire and shall be evaluated at the most serious part in the field of view. The method for measuring the carbide particle size is:
Carbide particle size
Where: A
The maximum size of the carbide particles in any direction: The maximum size of the carbide particles perpendicular to the A direction. A+B
8 Inspection rules
8.1 Inspection and acceptance
GB/T3080—2001
Table 7 Inspection items, test methods, sampling locations and quantities Inspection items
Chemical composition
Annealing hardness
Quick quenching hardness
Decarburized layer
Carbide unevenness
Phosphide particle size
Sampling quantity
1 per furnace
Successive coils (pieces)
Each coil (piece)
The inspection and acceptance of the wire shall be carried out in accordance with the provisions of GB/T2103. 8.2Batch rules
Sampling location
GB/T222
Non-cooking support (coil) steel wire
Test method
GB/T 223
GB/T 231
GB/T230
GB/T 224
GB/T 13298
Micrometer
Steel wires shall be inspected and accepted in batches. Each batch shall consist of steel wires of the same smelting furnace number, same size, same heat treatment furnace, and same delivery status.
8.3 Sampling quantity
The sampling quantity of steel wires shall comply with the provisions of Table 7. 8.4 Re-inspection and determination rules
The re-inspection and determination rules for steel wire shall comply with the provisions of GB/T2[03 9 Packaging, marking and quality certificate
The marking and quality certificate of steel wire shall comply with the provisions of GB/T2103. The packaging of steel wire, coils shall comply with the provisions of Class I packaging in GB/T2103; straight strips are generally coated with anti-rust oil and then packed in boxes. If required by the purchaser and indicated in the contract, Class I packaging may also be used. People's Republic of China
National Standard
Speed Tools
GB/T3080—2001
Published by China Standards Press
No.16, Langguo Hebei Street, Fuxingmenwai, Beijing
Postal Code: 100045
Tel: 6852391668517548
Printed by Qinhuangdao Printing Factory of China Standards Press Issued by Beijing Distribution Office of Xinhua Bookstore
Sold by Xinhua Bookstores in various places
Format 880×123 1/16 Printing Sheet 3/4
Number of Words 12 Qianxue
First edition in October 2001, first printing in October 2101, print run 1-2000
Book number: 155066·1-17941
Price: 8.00 yuan
Website: bzchs.com
Copyright reserved
All rights reserved% P
2 Group: 1.0%D
6.6.1 The surface of cold drawn annealed wire shall be smooth and free from defects such as cracks, scars, folds and cracks. Defects such as oxide film and individual pits with a depth not exceeding half of the diameter tolerance, scratches and pits are allowed. 6.6.2 The surface of polished steel wire shall be clean and bright and free from external defects such as cracks, hairlines, concave surfaces, scratches, black spots, scars, folds and cracks. 6.6.3 For annealed straight steel wire, spiral patterns not exceeding the diameter tolerance are allowed. There shall be no burrs at the ends of the self-stranded steel wire. 7 Test method
7.1 Steel. The inspection items, sampling locations and test methods shall comply with the provisions of Table 7. 7.2 The carbide particle size test of steel wire shall be carried out on the transverse specimen of the annealed steel wire and shall be evaluated at the most serious part in the field of view. The method for measuring the carbide particle size is:
Carbide particle size
Where: A
The maximum size of the carbide particles in any direction: The maximum size of the carbide particles perpendicular to the A direction. A+B
8 Inspection rules
8.1 Inspection and acceptance
GB/T3080—2001
Table 7 Inspection items, test methods, sampling locations and quantities Inspection items
Chemical composition
Annealing hardness
Quick quenching hardness
Decarburized layer
Carbide unevenness
Phosphide particle size
Sampling quantity
1 per furnace
Successive coils (pieces)
Each coil (piece)
The inspection and acceptance of the wire shall be carried out in accordance with the provisions of GB/T2103. 8.2Batch rules
Sampling location
GB/T222
Non-cooking support (coil) steel wire
Test method
GB/T 223
GB/T 231
GB/T230
GB/T 224
GB/T 13298
Micrometer
Steel wires shall be inspected and accepted in batches. Each batch shall consist of steel wires of the same smelting furnace number, same size, same heat treatment furnace, and same delivery status.
8.3 Sampling quantitywwW.bzxz.Net
The sampling quantity of steel wires shall comply with the provisions of Table 7. 8.4 Re-inspection and determination rules
The re-inspection and determination rules for steel wire shall comply with the provisions of GB/T2[03 9 Packaging, marking and quality certificate
The marking and quality certificate of steel wire shall comply with the provisions of GB/T2103. The packaging of steel wire, coils shall comply with the provisions of Class I packaging in GB/T2103; straight strips are generally coated with anti-rust oil and then packed in boxes. If required by the purchaser and indicated in the contract, Class I packaging may also be used. People's Republic of China
National Standard
Speed Tools
GB/T3080—2001
Published by China Standards Press
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Postal Code: 100045
Tel: 6852391668517548
Printed by Qinhuangdao Printing Factory of China Standards Press Issued by Beijing Distribution Office of Xinhua Bookstore
Sold by Xinhua Bookstores in various places
Format 880×123 1/16 Printing Sheet 3/4
Number of Words 12 Qianxue
First edition in October 2001, first printing in October 2101, print run 1-2000
Book number: 155066·1-17941
Price: 8.00 yuan
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