Some standard content:
National Standard of the People's Republic of China
Subject Content and Scope of Application
Brass wires
GB/T 14954-94
Replaces GB 3110~~311282
GB 313082
GB313382
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of brass wires. This standard applies to round, square and hexagonal brass wires used in various industrial sectors. 2 Reference standards
GB228 Metal tensile test method
Method for repeated bending test of metal wire
GB 238
Chemical analysis method for brass
GB/T 5122
GB5231 Chemical composition and product shape of processed copper GB6397
GB 8888
GB 10567
Metal tensile test specimen
Packaging, marking, transportation and storage of heavy non-ferrous metal processed products Brass wire and rod residual stress test method for ammonia fumigation GB/T 10573
3 Product classification
Tensile test method for non-ferrous metal fine wire
3.1 Brand, state and specification
The brand, state and specification of the product shall comply with the provisions of Table 1. Table 1
H65,H68
HSn60-1.HSn62-1
HPb63-3
HPb59-1
3.2 Marking examples
Soft (M), semi-hard (Y,),
3/4 hard (Y;), hard (Y)
Soft (M), hard (Y)
Soft (M), semi-hard (Y,)
Hard (Y), extra hard (T)
Diameter, mm
0.05~6. 0
0.5～6.0
Manufacturing various parts
For soldering materials, clock parts and other parts, manufacturing anti-corrosion parts and welding rods
Manufacturing cutting and welding parts
Clock parts and lock pins
The wire made of H68 alloy, in hard state and with high precision and a diameter of 3.0mm is marked as: Wire H68Y high 3.0GB/T14954-94
The wire made of HPb63-3 alloy, in extra hard state, with ordinary precision and a diameter of 1.0mm is marked as: Wire HPb63-3 T1.0 GB/T 14954 94 Approved by the State Administration of Technical Supervision on February 20, 1994 686
Implemented on December 1, 1994
4 Technical requirements
4.1 Chemical composition
GB/T14954--94
The chemical composition of wires shall conform to the provisions of GB5232. 4.2 Dimensions and allowable deviations
4.2.1 The allowable deviation of the diameter of round wires for locks and clocks shall conform to the provisions of Table 2. Table 2
Allowable deviation
Higher grade
Ordinary grade
0.5～1.0
The allowable deviation of the diameter of other round wires shall comply with the provisions of Table 3Table 3
Allowable deviation
Higher grade
Ordinary grade
0. 05~～0. 1
>0. 1～0. 5
>1. 0~3. 0
>0. 5~1. 0
The allowable deviation of the diameter of square and hexagonal wires shall comply with the provisions of Table 4. Table 4
Allowable deviation
Higher grade
Ordinary grade
Note: The diameter of square and hexagonal wires refers to the diameter of the inscribed circle, that is, the distance between two parallel sides. 4.2.4 With the agreement between the supplier and the buyer, wires with other specifications and allowable deviations can be supplied ≥1.0~3.0
3.0-~6.0
23.0~-6.0
>3.0-6.0
4.2.5 The deviation level of the wire must be indicated in the contract, otherwise it will be supplied according to the ordinary level in Table 2, Table 3 and Table 4. 4.2.6 When the buyer requires unidirectional deviation, its value is twice the value in Table 2, Table 3 and Table 4. 4.2.7
Out of roundness
When the wire diameter is less than or equal to 3.0mm, its out of roundness should not exceed half of the allowable diameter deviation. When the wire diameter is greater than 3.0mm, its out of roundness should not exceed the allowable diameter deviation. 4.3 Mechanical properties
4.3.1 The room temperature tensile test results of wires for locks and clocks shall comply with the requirements of Table 5. Table 5
HPb63-3
HPb59-1
0. 5~～6. 0
Note: Vickers hardness is only used as a reference value for brass wires for clocks. Tensile strength
345~540
540~685
590-735
390~-590
540--685
590~-735
Elongation, %
(Lo100 mm)
Vickers hardness (reference value)
160~18:
180--200
140160
160-~18h
180~-200
GB/T14954-94
There are no mechanical property requirements for HSn60-1 and HSn62-1 wires used for welding rods. The room temperature tensile test results of other wires shall comply with the requirements of Table 6 Table 6
0.05~0.25
>0.25~1. 0
>1.0~2. 0
>2.0~4. 0
≥4. 0~6.0
0.05~0.25
>0.25~1. 0
>1.0~2. 0
>2. 0~4. 0
>4.0~6. 0
0. 05~0. 25
>0.25~1. 0
>1. 0~2. 0
>2. 0~~4. 0
>4. 0～6. 0
0.05~0.25
>0. 25 ~1. 0
>1. 0~2. 0
>4.0～6.0
0.05~0.25
>0.25～1. 0
>1. 0~2.0
0.05~0.25
≥0. 25~1. 0
>1. 0~~2.0
>2.0~4. 0
>4. 0~6. 0 | | tt | 685885
635~835
590785
540~735
≥335||tt ||≥325
≥305
≥410
≥390
Elongation,
(le-100 mm)
CB/T 14954-94
Continued Table 6
0. 05~0.25
>0.25~1. 0
≥1.0~2.0
>4. 0~6. 0
0. 05~0. 25
>0. 25~1. 0
>1. 0～2. 0
>2. 0~4. 0
>4.0~6. 0
0.05~~0.25
>0. 25 ~1. 0
>1. 0～2. 0
>2. 0~4. 0
>4. 0~6. 0
0.05~0.25
>0. 25 ~~1. 0
≥1. 0~2. 0
>2.0~4.0
≥4. 0~6. 0
0. 05~0.25
0. 25 ～1. 0
>1. 0~2. 0
>2. 0～4. 0
>4. 0～6. 0
0. 05 ~0. 25
>0. 25 ～1. 0
>1.0~2. 0
>2.0~4. 0
>4.0~6. 0bzxz.net
Tensile strength
540~735
490~685
440~635
390~~590
375~~570
685~885
635~-835
590~785
540735
490~685
≥325
≥315
≥315|| tt||≥430
≥410
≥390
590785
540~735
490~685
440~635
390~590
785-980
685-885
635~835
590~785
540735
Elongation, not
(to - 100 tmm)
HSn62 1
HSn60-」
HIPb63-3
HPb59-1
4.4 Process performance
GB/T1495494
Continued table 6
Tensile strength
>2.0～4.0
0. 5~2. 0
2. 0~4. 0
>4.0~6. 0
0.5~~2. 0
>2. 0~4. 0
>4. 0～6. 0
0.5～2. 0
>2.0～4. 0
>4.0~6. 0
0. 5~～6.0
>4.0～6.0
0.5～2.0
>4.0-6. 0
>2. 0~4. 0
>4. 0~6. 0. 0~~6. 0.| 40785
490~735
≥305
≥295
≥285
390~610
390~600
390590||tt| |570735
≥345
≥335
≥325
390590
390~590
375～570
490~735||t t||490~685
440～635
4.7.1线材板在应光滑、电视，不是有裂纹、起皮、起刺、维拉道、图合和夹杂。6st
伸长率，%
(h= 100 (mm)有轻微的发红、发暗和oxidation色不作报废的电影。4.8线卷（美州）量地
4.8.1线卷（美分)的可件表8的结果。表8
0.05~0.10
0. 10 0. 5
>0. 5～1. 0
>1. 0~3. 0
>3. 0～6. 0
每卷（美单) weight，kg不小丁
每批法件线设计量的不可10%的者轻线卷（美州）。5 test method
5.1力学分单线方法用GB/T5122电视。5.2力学小材的红板的力学线单电发支件。 5.3力学单分电影用GB228、GB/T10573电视。5.3 ||线材的线材的内作分成的这些手机按GB238。5.4 residual stress testing method
线材的线余或性方法按GB10567。5.5 size measurement method
线材的可以的可以，用这个precision的measurementtoolsmeasurement。5.6 surface quality inspection method
tt||6.1 inspection and verification
过卷
6.1. 1线材五电以方手方手机手机手机设计，可以电影电影电影与本电视结构，名内实方方发动电影书6.1.2和方方对对是电影的电视的电视，如the inspection results and the requirements of this standard are not符时，应在电影电影之日起，3在内向供方是是，由供需二个商商方式。 6.2组批
线材应成批是交设计，每批应由电影牌号，电影同电影电影，可所批应不可以500 kg。 6.3 inspection project
6.3.1 Every batch of wire can be carried out chemical composition, strength, properties, shape size and surface quality inspection. 6.3.2H68、H65、H62 hard wire, can not be carried out repeatedly 6.3.3硫思、特硬态线材，应实方内容的红余性口的结板。6.3.4瀦材的断口以方可不设计，但must be guaranteed。 6.4 Take the sample position and take the sample quantity
GB/T 14954—94
6.4.1 The chemical composition of the sample, 6.4.2 room temperature tensile test 任电发2卷(美州), 1个语校，语方应语校(B6397)定，试样号文件R17。
6.4.3 repeated bending test 应电每批线材中任take2卷(長),每卷(長)take1个试校。6.4.4 residual stress test 应由每柷线材中任take2卷(長),每卷(長)take1个试校。6.4.5 measurement of external dimensions and surface quality 6.5 repeated test
7 Marking, packaging, transportation, and storage.0
Tensile strength
540~735
490~685
440~635
390~~590
375~~ 570
685 ~885
635~-835
590~785
540735
490~685
≥325
≥315||tt ||≥315|| tt||≥430
≥410
≥390
590785
540~735
490~685
440~635| |tt||390 ~590
785-980
685-885
635~835
590~785
540735
Elongation, no
(to - 100 tmm)
HSn62 1
HSn60-」
HIPb63-3
HPb59-1
4.4 Process performance
GB/ T1495494
Continued Table 6
Tensile strength
>2.0～4.0
0. 5~2. 0
2. 0~4. 0
>4.0~6.0
0.5~~2.0
>2.0~4.0
>4.0～6.0|| tt||0.5～2. 0
>2.0～4. 0
>4.0~6. 0
0. 5~～6.0
>4.0～6.0
0.5～2.0
>4.0-6. 0
>2. 0~4. 0
>4. 0~6. 0
The number of repeated bending of wires shall comply with the requirements of Table 7. 4.5 Residual stress
Diameter, mm
1. 0~~6. 0
Hard and extra-hard wires should be heat treated to eliminate residual stress 4.6 Wire fracture||tt ||The wire should be dense without shrinkage, pores, delamination and inclusions. 4.7 Surface quality
590~835
540785
490~735
≥305
≥295||tt ||≥285
390~610
390~600
390590
570735
≥345||t t||≥335
≥325
390590
390~590
375～570
490~735
490~685
440～635
4.7.1 The surface of the wire should be smooth and clean, without cracks, peeling, thorns, rough drawing, folding and inclusions. 6st
Elongation Rate, %
(h= 100 mm)
Number of repeated bending
GB/T14954—94
4.7.2 Slight, localized irregularities are permitted on the surface of the wire. Indentations and scratches that cause the wire diameter to exceed its allowable deviation. Slight redness, darkening and oxidation on the surface of the wire shall not be regarded as grounds for scrapping. 4.8 Wire reel (spool) weight || tt || 4.8.1 The weight of the wire reel (spool) shall comply with the provisions of Table 8. Table 8 | |tt||0.05~0.10
0. 10 0. 5
>0. 5～1. 0
>1. 0~3. 0
> 3. 0～6. 0
Weight of each coil (spool), kg not less than
The permitted delivery weight of each batch shall not exceed 10% of the lighter coils (spools). 5 Test method| |tt||5.1 Chemical composition arbitration analysis method
The chemical composition arbitration analysis of wire shall be carried out in accordance with GB/T5122. 5.2 Mechanical properties test method
Room temperature tensile test of wire shall be carried out in accordance with GB228 and GB/T10573. 5.3 Process performance test method
Repeated bending test of wire shall be carried out in accordance with GB238. 5.4 Residual stress test method|| tt||The residual stress test of wire shall be carried out in accordance with GB10567. 5.5 Dimension measurement method
The outer dimensions of the wire shall be measured with measuring tools of corresponding accuracy. 5.6 Surface quality inspection method
The surface quality of the wire is inspected visually. 6 Inspection rules
6.1 Inspection and acceptance
Lighter coils
6.1.1 The wire should The supplier's technical supervision department shall conduct inspections to ensure that the product quality complies with the provisions of this standard and fill in the quality certificate. 6.1.2 The purchaser shall inspect the received products in accordance with the provisions of this standard. If the inspection results are inconsistent with the provisions of this standard, If the regulations are not met, the supplier should be notified within 3 months from the date of receipt of the product, and the supplier and buyer should negotiate to resolve the issue. 6.2 Batch
Wires should be submitted for inspection in batches, and each batch should be of the same brand and state. Each batch of wires shall be inspected for chemical composition, mechanical properties, dimensions and surface quality. 6.3.2 For H68, H65, and H62 hard wires, the supplier may not conduct repeated bending tests, but must ensure that. 6.3.3 For hard and extra-hard wires, residual stress elimination tests shall be conducted. 6.3.4 For wire fracture suppliers, It is not necessary to inspect, but it must be guaranteed. 6.4 Sampling location and sampling quantity
GB/T 14954—94
6.4.1 Sampling of chemical composition: the supplier shall take one sample from each furnace during melting and casting. The purchaser shall randomly select one sample from each batch of wires. 6.4.2 The room temperature tensile test shall be conducted by taking 2 rolls (axes) from each batch of wires at random, and taking 1 specimen from each roll (axle). The specimen shall comply with the provisions of (B6397, and the specimen number is R17.||tt ||6.4.3 Repeated bending test shall be conducted by randomly selecting 2 rolls (axes) from each batch of wires, and taking 1 specimen from each roll (axe). 6.4.4 Residual stress test shall be conducted by randomly selecting 2 rolls (axes) from each batch of wires. 6.4.5 The measurement of the external dimensions and the inspection of the surface quality shall be carried out on each roll (shaft). 6.5 Repeated test
Each test Even if one sample fails the test, double the number of samples should be taken from the batch to retest the unqualified items. If one sample still fails the retest, the whole batch should be scrapped or phased out. The coils (spools) are inspected and those that pass the inspection are individually batched for acceptance. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of wires shall be carried out in accordance with the provisions of GB8888. Additional instructions:
This The standard was proposed by China Nonferrous Metals Industry Corporation. This standard was drafted by Northwest Copper Processing Plant. The main drafters of this standard are Ma Xiuhua and Wang Huahua.0
Tensile strength
540~735
490~685
440~635
390~~590
375~~ 570
685 ~885
635~-835
590~785
540735
490~685
≥325
≥315||tt ||≥315|| tt||≥430
≥410
≥390
590785
540~735
490~685
440~635| |tt||390 ~590
785-980
685-885
635~835
590~785
540735
Elongation, no
(to - 100 tmm)
HSn62 1
HSn60-」
HIPb63-3
HPb59-1
4.4 Process performance
GB/ T1495494
Continued Table 6
Tensile strength
>2.0～4.0
0. 5~2. 0
2. 0~4. 0
>4.0~6.0
0.5~~2.0
>2.0~4.0
>4.0～6.0|| tt||0.5～2. 0
>2.0～4. 0
>4.0~6. 0
0. 5~～6.0
>4.0～6.0
0.5～2.0
>4.0-6. 0
>2. 0~4. 0
>4. 0~6. 0
The number of repeated bending of wires shall comply with the requirements of Table 7. 4.5 Residual stress
Diameter, mm
1. 0~~6. 0
Hard and extra-hard wires should be heat treated to eliminate residual stress 4.6 Wire fracture||tt ||The wire should be dense without shrinkage, pores, delamination and inclusions. 4.7 Surface quality
590~835
540785
490~735
≥305
≥295||tt ||≥285
390~610
390~600
390590
570735
≥345||t t||≥335
≥325
390590
390~590
375～570
490~735
490~685
440～635
4.7.1 The surface of the wire should be smooth and clean, without cracks, peeling, thorns, rough drawing, folding and inclusions. 6st
Elongation Rate, %
(h= 100 mm)
Number of repeated bending
GB/T14954—94
4.7.2 Slight, localized irregularities are permitted on the surface of the wire. Indentations and scratches that cause the wire diameter to exceed its allowable deviation. Slight redness, darkening and oxidation on the surface of the wire shall not be regarded as grounds for scrapping. 4.8 Wire reel (spool) weight || tt || 4.8.1 The weight of the wire reel (spool) shall comply with the provisions of Table 8. Table 8 | |tt||0.05~0.10
0. 10 0. 5
>0. 5～1. 0
>1. 0~3. 0
> 3. 0～6. 0
Weight of each coil (spool), kg not less than
The permitted delivery weight of each batch shall not exceed 10% of the lighter coils (spools). 5 Test method| |tt||5.1 Chemical composition arbitration analysis method
The chemical composition arbitration analysis of wire shall be carried out in accordance with GB/T5122. 5.2 Mechanical properties test method
Room temperature tensile test of wire shall be carried out in accordance with GB228 and GB/T10573. 5.3 Process performance test method
Repeated bending test of wire shall be carried out in accordance with GB238. 5.4 Residual stress test method|| tt||The residual stress test of wire shall be carried out in accordance with GB10567. 5.5 Dimension measurement method
The outer dimensions of the wire shall be measured with measuring tools of corresponding accuracy. 5.6 Surface quality inspection method
The surface quality of the wire is inspected visually. 6 Inspection rules
6.1 Inspection and acceptance
Lighter coils
6.1.1 The wire should The supplier's technical supervision department shall conduct inspections to ensure that the product quality complies with the provisions of this standard and fill in the quality certificate. 6.1.2 The purchaser shall inspect the received products in accordance with the provisions of this standard. If the inspection results are inconsistent with the provisions of this standard, If the regulations are not met, the supplier should be notified within 3 months from the date of receipt of the product, and the supplier and buyer should negotiate to resolve the issue. 6.2 Batch
Wires should be submitted for inspection in batches, and each batch should be of the same brand and state. Each batch of wires shall be inspected for chemical composition, mechanical properties, dimensions and surface quality. 6.3.2 For H68, H65, and H62 hard wires, the supplier may not conduct repeated bending tests, but must ensure that. 6.3.3 For hard and extra-hard wires, residual stress elimination tests shall be conducted. 6.3.4 For wire fracture suppliers, It is not necessary to inspect, but it must be guaranteed. 6.4 Sampling location and sampling quantity
GB/T 14954—94
6.4.1 Sampling of chemical composition: the supplier shall take one sample from each furnace during melting and casting. The purchaser shall randomly select one sample from each batch of wires. 6.4.2 The room temperature tensile test shall be conducted by taking 2 rolls (axles) from each batch of wires at random, and taking 1 specimen from each roll (axle). The specimen shall comply with the provisions of (B6397, and the specimen number is R17.||tt ||6.4.3 Repeated bending test shall be conducted by randomly selecting 2 rolls (axes) from each batch of wires, and taking 1 specimen from each roll (axe). 6.4.4 Residual stress test shall be conducted by randomly selecting 2 rolls (axes) from each batch of wires. 6.4.5 The measurement of the external dimensions and the inspection of the surface quality shall be carried out on each roll (shaft). 6.5 Repeated test
Each test Even if one sample fails the test, double the number of samples should be taken from the batch to retest the unqualified items. If one sample still fails the retest, the whole batch should be scrapped or phased out. The coils (spools) are inspected and those that pass the inspection are individually batched for acceptance. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of wires shall be carried out in accordance with the provisions of GB8888. Additional instructions:
This The standard was proposed by China Nonferrous Metals Industry Corporation. This standard was drafted by Northwest Copper Processing Plant. The main drafters of this standard are Ma Xiuhua and Wang Huahua.0
>4.0～6.0
0.5～2.0
>4.0-6. 0
>2. 0~4. 0
>4. 0~6. 0
The number of repeated bending of wire shall comply with the requirements of Table 7, brand
4.5 Residual stress
Diameter, mm
1. 0~~6. 0
Hard and extra-hard wire shall be heat treated to eliminate residual stress. 4.6 Wire fracture
The wire fracture shall be dense, without shrinkage tail, pores, delamination and inclusions. 4.7 Surface quality
590~835
540785
490~735
≥305
≥295||tt ||≥285
390~610
390~600
390590
570735
≥345||t t||≥335
≥325
390590
390~590
375～570
490~735
490~685
440～635
4.7.1 The surface of the wire should be smooth and clean, and cracks, peeling, thorns, rough drawing, folding and inclusions are not allowed. 6st
Elongation, %
(h= 100 mm)
Number of repeated bending
GB/T14954—94
4.7.2 The surface of the wire is allowed to have slight, local indentations and scratches that do not make the wire diameter exceed its allowable deviation. The slight redness, darkening and oxidation color on the surface of the wire shall not be used as a basis for scrapping. 4.8 Wire Coil (Reel) Weight
4.8.1 The weight of the wire coil (reel) shall comply with the provisions of Table 8. Table 8
0.05~0.10
0. 10 0. 5
>0. 5～1. 0
>1. 0~3. 0
>3. 0～6. 0
Weight of each coil (reel), kg not less than
Each batch of permitted delivery weight shall not exceed 10% of the lighter wire coil (reel). 5 Test Method
5.1 Chemical Composition Arbitration Analysis Method
The chemical composition arbitration analysis of the wire shall be carried out in accordance with GB/T5122. 5.2 Mechanical properties test method
The room temperature tensile test of wire shall be carried out in accordance with GB228 and GB/T10573. 5.3 Process performance test method
The repeated bending test of wire shall be carried out in accordance with GB238. 5.4 Residual stress test method
The residual stress test of wire shall be carried out in accordance with GB10567. 5.5 Dimension measurement method
The outer dimensions of the wire shall be measured with measuring tools of corresponding accuracy. 5.6 Surface quality inspection method
The surface quality of the wire is inspected visually. 6 Inspection rules
6.1 Inspection and acceptance
Lighter coils
6.1.1 The wire should 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. 6.1.2 The buyer should inspect the received products in accordance with the provisions of this standard. If the inspection results do not meet the requirements of this standard, the buyer should report to the supplier within 3 months from the date of receipt of the product, and the supplier and buyer should negotiate to resolve the problem. 6.2 Batches
Wires should be submitted for inspection in batches. Each batch should consist of the same brand, state and specification, and the weight of each batch should not exceed 500kg. 6.3 Inspection items
6.3.1 Each batch of wire should be inspected for chemical composition, mechanical properties, external dimensions and surface quality. 6.3.2 For H68, H65, H62 hard wires, the supplier may not conduct repeated bending tests, but must ensure. 6.3.3 For hard and extra-hard wires, residual stress elimination tests shall be conducted. 6.3.4 The supplier may not conduct tests on the wire fractures, but must ensure. 6.4 Sampling location and sampling quantity
GB/T 14954—94
6.4.1 For sampling of chemical composition, the supplier shall take one sample from each furnace during melting and casting, and the buyer shall take one sample from each batch of wires at random. 6.4.2 For the room temperature tensile test, 2 rolls (axes) shall be randomly selected from each batch of wires, and 1 sample shall be taken from each roll (axle). The sample shall comply with the provisions of (B6397, and the sample number is R17.
6.4.3 For the repeated bending test, 2 rolls (axes) shall be randomly selected from each batch of wires, and 1 sample shall be taken from each roll (axle). 6.4.4 For the residual stress test, 2 rolls (axes) shall be randomly selected from each batch of wires, and 1 sample shall be taken from each roll (axle). 6.4.5 The measurement of the external dimensions and the inspection of the surface quality shall be carried out on the rolls (axles). 6.5 Repeated test
Each test Even if one sample fails the test, double the number of samples should be taken from the batch for retesting of the unqualified items. If one sample still fails the retest, the whole batch shall be scrapped or reel (coil) shall be inspected, and the qualified ones shall be accepted in a separate batch. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of wire rods shall be carried out in accordance with the provisions of GB8888. Additional remarks:
This standard was proposed by China Nonferrous Metals Industry Corporation. This standard was drafted by Northwest Copper Processing Plant. The main drafters of this standard are Ma Xiuhua and Wang Huahua. 620
>4.0～6.0
0.5～2.0
>4.0-6. 0
>2. 0~4. 0
>4. 0~6. 0
The number of repeated bending of wire shall comply with the requirements of Table 7, brand
4.5 Residual stress
Diameter, mm
1. 0~~6. 0
Hard and extra-hard wire shall be heat treated to eliminate residual stress. 4.6 Wire fracture
The wire fracture shall be dense, without shrinkage tail, pores, delamination and inclusions. 4.7 Surface quality
590~835
540785
490~735
≥305
≥295||tt ||≥285
390~610
390~600
390590
570735
≥345||t t||≥335
≥325
390590
390~590
375～570
490~735
490~685
440～635
4.7.1 The surface of the wire should be smooth and clean, and cracks, peeling, thorns, rough drawing, folding and inclusions are not allowed. 6st
Elongation, %
(h= 100 mm)
Number of repeated bending
GB/T14954—94
4.7.2 The surface of the wire is allowed to have slight, local indentations and scratches that do not make the wire diameter exceed its allowable deviation. The slight redness, darkening and oxidation color on the surface of the wire shall not be used as a basis for scrapping. 4.8 Wire Coil (Reel) Weight
4.8.1 The weight of the wire coil (reel) shall comply with the provisions of Table 8. Table 8
0.05~0.10
0. 10 0. 5
>0. 5～1. 0
>1. 0~3. 0
>3. 0～6. 0
Weight of each coil (reel), kg not less than
Each batch of permitted delivery weight shall not exceed 10% of the lighter wire coil (reel). 5 Test Method
5.1 Chemical Composition Arbitration Analysis Method
The chemical composition arbitration analysis of the wire shall be carried out in accordance with GB/T5122. 5.2 Mechanical properties test method
The room temperature tensile test of wire shall be carried out in accordance with GB228 and GB/T10573. 5.3 Process performance test method
The repeated bending test of wire shall be carried out in accordance with GB238. 5.4 Residual stress test method
The residual stress test of wire shall be carried out in accordance with GB10567. 5.5 Dimension measurement method
The outer dimensions of the wire shall be measured with measuring tools of corresponding accuracy. 5.6 Surface quality inspection method
The surface quality of the wire is inspected visually. 6 Inspection rules
6.1 Inspection and acceptance
Lighter coils
6.1.1 The wire should 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. 6.1.2 The buyer should inspect the received products in accordance with the provisions of this standard. If the inspection results do not meet the requirements of this standard, the buyer should report to the supplier within 3 months from the date of receipt of the product, and the supplier and buyer should negotiate to resolve the problem. 6.2 Batches
Wires should be submitted for inspection in batches. Each batch should consist of the same brand, state and specification, and the weight of each batch should not exceed 500kg. 6.3 Inspection items
6.3.1 Each batch of wire should be inspected for chemical composition, mechanical properties, external dimensions and surface quality. 6.3.2 For H68, H65, H62 hard wires, the supplier may not conduct repeated bending tests, but must ensure. 6.3.3 For hard and extra-hard wires, residual stress elimination tests shall be conducted. 6.3.4 The supplier may not conduct tests on the wire fractures, but must ensure. 6.4 Sampling location and sampling quantity
GB/T 14954—94
6.4.1 For sampling of chemical composition, the supplier shall take one sample from each furnace during melting and casting, and the buyer shall take one sample from each batch of wires at random. 6.4.2 For the room temperature tensile test, 2 rolls (axes) shall be randomly selected from each batch of wires, and 1 sample shall be taken from each roll (axle). The sample shall comply with the provisions of (B6397, and the sample number is R17.
6.4.3 For the repeated bending test, 2 rolls (axes) shall be randomly selected from each batch of wires, and 1 sample shall be taken from each roll (axle). 6.4.4 For the residual stress test, 2 rolls (axes) shall be randomly selected from each batch of wires, and 1 sample shall be taken from each roll (axle). 6.4.5 The measurement of the external dimensions and the inspection of the surface quality shall be carried out on the rolls (axles). 6.5 Repeated test
Each test Even if one sample fails the test, double the number of samples should be taken from the batch for retesting of the unqualified items. If one sample still fails the retest, the whole batch shall be scrapped or reel (coil) shall be inspected, and the qualified ones shall be accepted in a separate batch. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of wire rods shall be carried out in accordance with the provisions of GB8888. Additional remarks:
This standard was proposed by China Nonferrous Metals Industry Corporation. This standard was drafted by Northwest Copper Processing Plant. The main drafters of this standard are Ma Xiuhua and Wang Huahua. 622 The purchaser shall inspect the products received in accordance with the provisions of this standard. If the inspection results do not conform to the provisions of this standard, the purchaser shall submit the matter to the supplier within 3 months from the date of receipt of the product, and the two parties shall negotiate to resolve the issue. 6.2 Batches
Wires shall be submitted for inspection in batches. Each batch shall consist of the same brand, state and specification, and the weight of each batch shall not exceed 500kg. 6.3 Inspection items
6.3.1 Each batch of wires shall be inspected for chemical composition, mechanical properties, external dimensions and surface quality. 6.3.2 For H68, H65 and H62 hard wires, the supplier may not conduct repeated bending tests, but must ensure that. 6.3.3 For hard and extra-hard wires, residual stress elimination tests shall be carried out. 6.3.4 The supplier may not inspect the fracture of the wires, but must ensure that. 6.4 Sampling location and sampling quantity
GB/T 14954—94
6.4.1 For sampling of chemical composition, the supplier shall take one sample from each furnace during melting and casting, and the buyer shall take one sample from each batch of wires. 6.4.2 For room temperature tensile test, two rolls (axes) shall be randomly selected from each batch of wires, and one sample shall be taken from each roll (axe). The sample shall comply with the provisions of (B6397, and the sample number is R17.
6.4.3 For repeated bending test, two rolls (axes) shall be randomly selected from each batch of wires, and one sample shall be taken from each roll (axe). 6.4.4 For residual stress test, two rolls (axes) shall be randomly selected from each batch of wires, and one sample shall be taken from each roll (axe). 6.4.5 The measurement of external dimensions and the inspection of surface quality shall be carried out on a roll (axe). 6.5 Repeated test
Each test Even if one sample fails the test, double the number of samples should be taken from the batch for retesting of the unqualified items. If one sample still fails the retest, the whole batch shall be scrapped or reel (coil) shall be inspected, and the qualified ones shall be accepted in a separate batch. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of wire rods shall be carried out in accordance with the provisions of GB8888. Additional remarks:
This standard was proposed by China Nonferrous Metals Industry Corporation. This standard was drafted by Northwest Copper Processing Plant. The main drafters of this standard are Ma Xiuhua and Wang Huahua. 622 The purchaser shall inspect the products received in accordance with the provisions of this standard. If the inspection results do not conform to the provisions of this standard, the purchaser shall submit the matter to the supplier within 3 months from the date of receipt of the product, and the two parties shall negotiate to resolve the issue. 6.2 Batches
Wires shall be submitted for inspection in batches. Each batch shall consist of the same brand, state and specification, and the weight of each batch shall not exceed 500kg. 6.3 Inspection items
6.3.1 Each batch of wires shall be inspected for chemical composition, mechanical properties, external dimensions and surface quality. 6.3.2 For H68, H65 and H62 hard wires, the supplier may not conduct repeated bending tests, but must ensure that. 6.3.3 For hard and extra-hard wires, residual stress elimination tests shall be carried out. 6.3.4 The supplier may not inspect the fracture of the wires, but must ensure that. 6.4 Sampling location and sampling quantity
GB/T 14954—94
6.4.1 For sampling of chemical composition, the supplier shall take one sample from each furnace during melting and casting, and the buyer shall take one sample from each batch of wires. 6.4.2 For room temperature tensile test, two rolls (axes) shall be randomly selected from each batch of wires, and one sample shall be taken from each roll (axe). The sample shall comply with the provisions of (B6397, and the sample number is R17.
6.4.3 For repeated bending test, two rolls (axes) shall be randomly selected from each batch of wires, and one sample shall be taken from each roll (axe). 6.4.4 For residual stress test, two rolls (axes) shall be randomly selected from each batch of wires, and one sample shall be taken from each roll (axe). 6.4.5 The measurement of external dimensions and the inspection of surface quality shall be carried out on each roll (axe). 6.5 Repeated test
Each test Even if one sample fails the test, double the number of samples should be taken from the batch for retesting of the unqualified items. If one sample still fails the retest, the whole batch shall be scrapped or reel (coil) shall be inspected, and the qualified ones shall be accepted in a separate batch. 7 Marking, packaging, transportation, storage
The marking, packaging, transportation and storage of wire rods shall be carried out in accordance with the provisions of GB8888. Additional remarks:
This standard was proposed by China Nonferrous Metals Industry Corporation. This standard was drafted by Northwest Copper Processing Plant. The main drafters of this standard are Ma Xiuhua and Wang Huahua. 62
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