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GB/T 19447-2013: Copper and copper-alloys seamless tubes with integral fins for heat exchanger
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Basic data | Standard ID | GB/T 19447-2013 (GB/T19447-2013) | | Description (Translated English) | Copper and copper-alloys seamless tubes with integral fins for heat exchanger | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H62 | | Classification of International Standard | 77.150.30 | | Word Count Estimation | 22,233 | | Older Standard (superseded by this standard) | GB/T 19447-2004 | | Quoted Standard | GB/T 228.1-2010; GB/T 241; GB/T 242; GB/T 246; GB/T 4340.1; GB/T 5121.1; GB/T 5121.2; GB/T 5121.3; GB/T 5121.4; GB/T 5121.5; GB/T 5121.6; GB/T 5121.7; GB/T 5121.8; GB/T 5121.9; GB/T 5121.10; GB/T 5121.11; GB/T 5121.12; GB/T 5121.13; GB/T 5121.14; GB/T 512 | | Adopted Standard | ASTM B359/B359M-2002 (2006), MOD | | Regulation (derived from) | National Standards Bulletin 2013 No. 23 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the finned copper and copper alloy seamless pipe requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificates and contracts (or purchase orders) and so on. This standard applies t | GB/T 19447-2013: Copper and copper-alloys seamless tubes with integral fins for heat exchanger---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Copper and copper-alloys seamless tubes with integral fins for heat exchanger
ICS 77.150.30
H62
National Standards of People's Republic of China
Replacing GB/T 19447-2004
Heat exchangers with copper and copper alloy seamless finned tubes
Issued on. 2013-11-27
2014-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is in accordance with GB/T 1.1-2009 given rules drafted.
This revised standard adopts ASTMB359/B359M.2002 (2006) "and condenser heat exchangers with copper and copper alloy seamless fin
tube".
The main technical aspects of this standard and ASTMB359/B359M.2002 (2006) "condensers and heat exchangers with copper and copper alloy non
Finned tube seam "differences.
--- In ASTMB359/B359M.2002 (2006), based on the increase in the hard state requirements;
--- In ASTMB359/B359M.2002 (2006), based on the increase in the hardness test requirements;
--- In ASTMB359/B359M.2002 (2006), based on the increase in the cleanliness test requirements;
--- In ASTMB359/B359M.2002 (2006), based on the increase in the index requirements and test methods for thermal performance.
This standard replaces GB/T 19447-2004 "heat exchangers with finned copper and copper alloy seamless pipe," this standard and GB/T 19447-
2004 compared to the following modifications.
--- Increase HSn72-1 (C44300) grades;
--- Thickness range from the "0.60mm ~ 2.0mm" changed to "0.60mm ~ 3.0mm";
--- Increase common specifications and parameters;
--- The pipe delivery status demanded a re-revised;
--- Size parameters required to increase the "outer wing fin number (FPI)" and "within the rack number (N)";
--- To increase the hardness (HV1) test project and requirements and hard state (H04) requirements in terms of mechanical properties;
--- Tightened the testing requirements of the standard hole (the hole standard 1.07mm to 0.8mm; 1.17mm to 1.1mm);
--- Grain size by the "0.025mm ~ 0.060mm" changed to "0.010mm ~ 0.050mm";
--- Increased cleanliness testing standards and requirements;
--- Each batch by weight of "2000kg" revised to 4500kg;
--- Provisions made for sampling revised;
--- Part of the test standard reference again revised.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard is drafted by. Golden Dragon Copper Tube Group Jiangsu warehouse ring Copper Co., Ltd., Jiangsu and Crafts Long Precise Copper Tube Co. Shares
the company.
Participated in the drafting of this standard. Zhejiang Honglei Copper Co., Ltd. No Xi Longda metal material.
The main drafters of this standard. Li Changjie, Lu Minghua, Li Jianping, Zhang Chunming, Zhang Zhenyu, Pu Yi Long, Sun Xinchun, when Minghua, Zhe Wei Qiang,
Weng Jin Xiang, YU Chuan Fu, Zhouhao Ping, Wang Xiangdong.
This standard replaces the standards previously issued as follows.
--- GB/T 19447-2004.
Heat exchangers with copper and copper alloy seamless finned tubes
1 Scope
This standard specifies the copper and copper alloy seamless pipe finned requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificate
Specification and contracts (or orders) and so on.
This standard applies to the heat exchanger with a fin height of not more than 4mm overall outer spiral fins and the inner ribs of copper and copper alloy seamless tube.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 228.1-2010 metal material tensile test - Part 1. room temperature test methods (ISO 6892-1.2009, MOD)
GB/T 241 metal pipe Hydrostatic pressure testing
GB/T 242 Test Method metal tube expansion port (ISO 8493.1998, IDT)
GB/T 246 metal pipe flattening test methods (ISO 8492.1998, IDT)
Test Method. GB/T 4340.1 metallic materials - Vickers hardness test - Part 1 (ISO 6507-1.2005, MOD)
GB/T 5121 (all parts) of copper and copper alloys -
GB/T 5231 Wrought copper and copper alloy chemical composition and shape of the product
GB/T 5248 copper and copper alloy seamless pipe eddy current testing method
GB/T 8888 heavy non-ferrous metal processing products, packaging, labeling, transportation and storage
GB/T 8890 copper alloy seamless pipe heat exchanger
GB/T 10567.2 copper and copper alloy processing material residual stress - Ammonia test test method
GB/T 16866 copper and copper alloy seamless pipe dimensions and tolerances
GB/T 17791-2007 Air Conditioning & Refrigeration equipment brass
GB/T 26303.1 copper and copper alloy processing material Dimensions test methods - Part 1. Pipes
347 Single YS/T-phase copper alloy grain size measurement method
YS/T 482 copper and copper alloy analysis photoemission spectroscopy
3 Requirements
3.1 Categories
3.1.1 grade, before finning status, specifications
3.1.1.1 pipe grades, finning former state specifications shall comply with the requirements in Table 1.
Table 1 pipe grade, status, size
Grade former state code finning
Specifications/mm
Wingless segment
(Outer diameter D × wall thickness T)
Finning section
(Fin fin height Hf × number FPI
(/ Inch) × Bottom thickness Tf)
TU00
TU1
TU2
TP1
TP2
C10100
T10150
T10180
C12000
C12200
Soft annealed state (O60)
Gently pull the state (H55)
Drawing state (H80)
(7 ~ 30) × (0.6 ~ 3.0)
BFe5-1.5-0.5
BFe10-1-1
BFe30-1-1
C70400
T70590
T71510
Soft annealed state (O60) (10 ~ 26) × (0.75 ~ 3.0)
HA177-2
HSn72-1
HSn70-1
HAs85-0.05
C68700
C44300
T45000
T23030
Soft annealed state (O60) (10 ~ 26) × (0.75 ~ 3.0)
(0.3 ~ 3.8) × (11 ~ 56)
× (0.4 ~ 2.5)
Note 1. The supply, both sides need to negotiate, can supply other grades and specifications of the pipe.
Note 2. Pipes finning after annealing can be carried out according to customer requirements.
3.1.1.2 Recommended common specifications, the main parameters in Table 2. Names of parts finned tube is shown in Figure 1.
Table 2 Recommended common specifications, the main parameters
Nominal Specifications
mm
Wingless segment
The outer diameter D
mm
Wall thickness T
mm
Finning section
Diameter Df
mm
Outer fin height Hf
mm
Outer wing fin
Number of FPI
/ Inch
Inner tooth height Rh
mm
Internal teeth
The number N
Internal teeth
Helix angle β
(°)
Bottom thickness Tf
mm
25.32 × 1.18 25.32 1.18 25.32 0.9 46 0.36 45 35 0.64
25.32 × 1.18 25.32 1.18 25.32 0.6 46 0.36 52 35 0.64
18.92 × 1.13 18.92 1.13 18.92 0.6 46 0.36 45 42 0.64
18.92 × 1.13 18.92 1.13 18.92 0.9 46 0.36 45 42 0.64
16 × 0.65 16 0.65 16 0.3 26 0.15 8 43 ≥0.5
15.88 × 1.1 15.88 1.1 15.88 0.9 40 0.25 38 40 0.55
19.05 × 1.15 19.05 1.15 19.05 1.45 26 - - - ≥0.55
15.88 × 0.6 15.88 0.6 15.88 - - 0.3 60 25 0.5
12.7 × 0.6 12.7 0.6 12.7 - - 0.25 60 42 0.4
23.4 × 2.5 23.4 2.5 26 2.8 12 - - - 1.5
23 × 2.6 23 2.6 26 3.0 11 - - - 1.5
22 × 2.45 22 2.45 27 3.5 11 - - - 0.95
17 × 2.8 17 2.8 19 2.5 12 - - - 1.5
Note. The supply, both sides need to negotiate, we can supply other specifications, the parameters of the pipe.
Explanation.
T --- wingless segment wall thickness;
B --- Transition cone length;
FPI --- outer wing fin number (/ inch);
Hf --- outer fin height;
D --- wingless segment outer diameter;
N --- within the rack number;
β --- internal teeth helix angle;
Rh --- high internal teeth;
Tf --- finning in bottom wall thickness;
Df --- finning segment outer diameter.
Figure 1 a schematic view of the finned tube Names of parts
3.1.2 tag example
Products marked by product name, standard number, grade, before finning state, drawing number, size of the order of representation. Tag example as follows.
With TP2 manufactured before finning softening annealed state, wingless segment outer diameter of 19mm, a wall thickness of 1.25mm, a length
4750mm, Product Drawing No. K500B7-015 pipe marked.
Finned tubes GB/T 19447-TP2O60K500B7-015-φ19 × 1.25 × 4750
3.2 Chemical composition
Chemical composition of the pipe should be consistent with GB/T 5231 specified in the appropriate grade.
3.3 dimensions and tolerances
3.3.1 an outer diameter and an outer diameter tolerance
Wingless segment and the outer diameter of the outer diameter of the pipe tolerances shall comply with the provisions in Table 3.
Table 3 and the outer diameter of the outer diameter in millimeters tolerance
Predetermined diameter tolerance, not more than
≤12.0 ± 0.05
> 12.0 ~ 18.0 ± 0.06
> 18.0 ~ 30.0 ± 0.08
3.3.2 wall thickness and wall thickness tolerances
3.3.2.1 thinnest wall thickness of the pipe fin fragments not less than the specified minimum thickness (demand side, drawing a predetermined value). Fin height, the number of fins,
Internal teeth helix angle, tooth height within the inner rack number by drawing provisions.
Wingless wall thickness of the pipe section 3.3.2.2 pipe wall thickness allow deviation is less than ± 8%.
3.3.3 Length and Length tolerance
3.3.3.1 pipe length and the length tolerances shall comply with the requirements of Table 4.
Table 4 pipe length and the length of tolerance in millimeters
Predetermined length tolerance, not more than
≤6000 3
> 6000 ~ 100 004
> 10,000 to 180,006
3.3.3.2 from the pipe end to the first fin indentation measured length is determined by the supply and demand sides negotiated.
3.3.4 Cut slope
Cut pipe slope shall meet the requirements of Table 5.
Table 5 pipe cut slope requirements millimeters
Outside diameter tolerance, not more than
≤16.0 0.25
> 16.0 0.016 × D
3.3.5 straightness, roundness
Tube straightness, roundness should be consistent with GB/T 16866 in the corresponding provisions.
3.3.6 Unless otherwise specified, pipe cut end should be chamfered.
3.4 Mechanical Properties
Before finning, at room temperature, tube tensile strength (Rm) should meet the requirements in Table 6. When the user is required, total extension strength
(Rt0.5), Vickers hardness (HV1) to comply with Table 6.
Table 6 tube at room temperature mechanical properties
Grade status
Tensile strength Rm
MPa
Min
Total extension strength Rt0.5
MPa
Min
Vickers hardness (HV1)
TU00
TU1
TU2
TP1
TP2
Soft annealed state (O60) 205 62 40 ~ 75
Gently pull the state (H55) 250 205 70 ~ 110
Drawing state (H80) 290 - 90 ~ 120
BFe5-1.5-0.5
BFe10-1-1
BFe30-1-1
Soft annealed state (O60)
26085 < 110
27,510,575 ~ 110
360 125 < 135
HAl77-2
HSn72-1
HSn70-1
HAs85-0.05
Soft annealed state (O60)
34512560 ~ 90
31010560 100
2758545 ~ 80
Note. The total size of the Vickers hardness test force by the demand and supply sides negotiated.
3.5 Process Performance
3.5.1 flaring test
Wingless pipe segment or tube flaring test shall be in accordance with Table 7.
Table 7 wingless pipe or tube segment of flaring test
Grade status
Flaring rate (using the 60 ° cone punch)
result
TU00
TU1
TU2
TP1
TP2
BFe5-1.5-0.5
BFe10-1-1
BFe30-1-1
HAl77-2
HSn72-1
HSn70-1
HAs85-0.05
Soft annealed state (O60)
Gently pull the state (H55)
Soft annealed state (O60)
Soft annealed state (O60)
After the pipe flaring test
The specimen shall produce meat
Eye visible cracks
Or split
3.5.2 Flattening test
Annealed pipe or tube segment wingless segment flattening test should be carried out, after flattening two walls a distance equal to the thickness, the specimen shall produce visually
See cracks or fractures.
3.6 Non-destructive testing
After finning pipe should be non-destructive testing, a method can optionally 3.6.1,3.6.2,3.6.3 three methods.
3.6.1 Hydrostatic Testing
Pipe shall be subjected to hydrostatic pressure without leakage inside. Test pressure according to formula (1) calculation, the test duration. 10s ~ 15s. unless
Otherwise specified, the pipe does not have to be tested under hydrostatic pressure greater than 6.9MPa.
p = 2ST/(D-0.8T) (1)
Where.
p --- maximum test pressure in megapascals (MPa);
T --- wingless segment of pipe wall thickness, in millimeters (mm);
D --- wingless segment of pipe diameter, in millimeters (mm);
S --- material allowable stress, in megapascals (MPa).
Copper and copper alloy tube material allowable stress values chosen shall comply with the requirements in Table 8.
Table 8 copper and copper alloy tube material allowable stress
Grade status
Allowable stress at different temperatures/MPa
20 ℃ 50 ℃ 75 ℃ 100 ℃ 125 ℃ 150 ℃
TU00, TU1, TU2,
TP1, TP2
H55
O60
BFe10-1-1 O60 69 68 66 65 62 60
BFe30-1-1 O60 83 81 79 77 76 74
HAl77-2 O60 83 82 82 82 82 80
HSn72-1,
HSn70-1
O60 69 69 69 69 69 69
HAs85-0.05 O60 55 55 55 55 55 49
3.6.2 Pressure test
Pipe should be able to withstand the internal pressure test at least 1.7MPa and keep 5s there should be no leakage.
3.6.3 eddy current testing
3.6.3.1 When the eddy current testing, standard artificial defect (hole diameter) should meet the requirements of Table 9.
Table 9 standard artificial defect aperture size in millimeters
The outer diameter of the through-hole diameter
6.0 to 16.0 0.8
> 16.0 to 30.0 1.1
3.6.3.2 according to GB/T 5248 Table 9 and aperture provisions regulating device sensitivity. In the eddy current testing facilities and equipment does not cause alarm Anti
Should pipe shall be deemed to meet the requirements of this standard.
3.6.3.3 Since visible indentation produce uncorrelated signals pipe can be hydrostatically pressure test conducted according to 3.6.2 or 3.6.1 Press
test.
3.7 Thermal Performance
Pipe thermal performance by the demand and supply sides negotiated, provided the demand side requirements.
3.8 Residual Stress
Brass pipe should be residual stress testing.
Grain size 3.9
Grain size before finning the tube should not exceed the range of 0.01mm ~ 0.05mm.
Cleanliness 3.10
Inner tubes without annealing, the total amount of residual dirt outer surface is determined by the supply and demand sides negotiated; annealing within the pipe, the total amount of residual contamination of the surface should break
Co specified in Table 10. It can also be measured separately inner and outer surfaces of the residue user demand.
Table 10 annealing pipe Cleanliness
Outside diameter/mm inner and outer surfaces of the total amount of residual dirt/(g/m2)
≤16 ≤0.25
> 16 ≤0.32
3.11 Surface Quality
3.11.1 inner pipe, the outer surface should be clean. Allowed not to cause the pipe diameter and wall thickness exceeds the allowable deviation of scratches, pits pressed into objects,
Ring marks and other defects.
3.11.2 pipe surface to allow a slight oil film on the processing, light oxidation color, dark.
Test Method 4
4.1 chemical analysis methods
Analysis of the chemical composition of the pipe according to the provisions/T 482 of the GB/T 5121 or YS carried out according to the provisions of GB T 5121/arbitration
get on.
4.2 size measurement method
Pipe dimensions according to the provisions of GB/T 26303.1 performed; measurement method in accordance with the inner surface of the thread size of GB/T 26303.1 of
Provisions, arbitration measured using a sectional screening method.
4.3 Mechanical tests at room temperature
Tensile testing pipe according to the provisions of GB/T 228.1 progresses, the tensile specimen into the sample in accordance with the provisions of GB/T 228.1 in S7
Line; hardness test carried out in accordance with the provisions of GB/T 4340.1 of.
4.4 Process performance test
4.4.1 pipe flaring test methods according to the provisions of GB/T 242 will be.
Flattening testing method in accordance with the provisions of 4.4.2 Pipe GB/T 246 will be.
4.5 Non-destructive testing methods
Hydrostatic test method 4.5.1 pipe according to the provisions of GB/T 241 will be.
4.5.2 Pressure test methods can be simple visual (or automatic test equipment) leakage was observed, for example, will be placed in the water pipe or differential pressure
method.
Eddy current testing method GB 4.5.3 pipe/T 5248 of the regulations.
4.6 Thermal Performance test methods
Pipe heat transfer coefficient detection methods can refer to the provisions of Appendix A of conduct.
4.7 Residual Stress test methods
Pipe residual stress test method in accordance with the provisions of GB/T 10567.2 of.
4.8 grain size test methods
Grain size pipe test method conducted in accordance with YS/T 347's.
4.9 surface cleanliness test methods
Inner tube, the outer surface of the soil test method of total residues in accordance with Appendix B of the method. Test methods within the pipe surface cleanliness
According to GB/T 17791-2007 Appendix A method to measure the outer surface residues within the total amount of residual contamination within the outer surface of the minus
The amount of surface residues.
4.10 Surface quality inspection method
Pipe surface quality by visual inspection.
5 Inspection Rules
5.1 inspection and acceptance
5.1.1 pipe should be for the technical supervision departments for examination, to ensure product quality in line with the provisions of this standard and the contract (or purchase order) and
Fill in the quality certificate.
5.1.2 demand-side response received retest the product according to the provisions of this standard and the contract (or purchase order), the reinspection results with this standard or contract
It does not match (or orders) provisions should be made to the supplier in writing by both parties through consultation. Belonging to the surface quality and size deviation
The opposition should be the date of receipt of goods within one month, other properties belonging to the opposition, should be the date of receipt of goods within three months.
For arbitration, arbitration sampled by the supply and demand sides jointly.
5.2 Batch
Pipe should be submitted in batches acceptance. Each batch should be in the same grade, status and specifications of the product composition, the quality of each batch or not more than 4500kg
600.
5.3 Test Project
5.3.1 factory inspection
5.3.1.1 Each batch should pipe chemical composition, dimensions, tensile strength, grain size, process performance, non-destructive testing (hydrostatic pressure test
Inspection, pressure tests or eddy current testing method Choose one of the three test) and surface quality. When the demand side is required, should be carried out
Total extension strength, Vickers hardness, residual stress, cleanliness testing.
5.3.1.2 Each batch wing argument pipes should be tested for the following items.
Number a) within the rack, the height of the helix angle;
b) the height of the outer wing, outer wing number of fins.
5.3.2 Type inspection
There are the following circumstances, the product should be the type of inspection. Type test items are shown in Table 11.
a) new products or old products to the plant trial to identify stereotypes;
B) When normal production, once a year type of inspection;
c) the product of raw materials, processes are major changes that may affect product performance;
Structure d) the product is changed greatly;
After e) Product Discontinuance resume production;
f) The factory test results and the last type tests in quite different;
g) takes party requirements;
h) national quality supervision bodies during type inspection requirements.
Table 11 test items
Test items Test items factory type test items
Chemical composition √ √
Dimensions √ √
Tensile strength √ √
Total extension strength △ √
Vickers hardness △ √
Process performance √ √
Non-destructive testing √ √
Grain size √ √
Surface quality √ √
Residual Stress △ √
Cleanliness △ √
Thermal Performance - √
Note. The table "√" means "test items"; "-" means "non-test items"; "△" means "test items when requested by the demand side, there is."
5.4 Sampling
Product sampling to comply with Table 12.
Table 12 Sampling
Test items Test Method for Sampling Chapter Article number specified requirements of the reg number
chemical composition
Supply side in the casting, each take a test furnace
Thus, the demand side in each batch of tubing either take a
Sample
3.2 4.1
Dimensions deviation
According to GB/T 2828.1 predetermined sampling, a
Like test level Ⅱ or agreement between the,
Acceptance quality limit AQL = 2.5
3.3 4.2
Hydrostatic Testing
Pressure test
Eddy Current Inspection
Supplier detected by the root, the demand side, two each batch
Root, each either take a sample
3.6.1
3.6.2
3.6.3
4.4.3
4.4.4
4.6
Surface Quality
Supplier detected by the root, the demand side either take a batch
Samples
3.11 4.10
Flaring test
Flattening test
Residual Stress
Two each batch, each pipe in the wingless
Take any section of a sample
3.5.1
3.5.2
3.8
4.4.1
4.4.2
4.7
Mechanical Properties
Two each batch, each either take a full cut
Surface of the pipe section specimen (wingless section)
3.4 4.3
Grain size
Two each batch, each either take a full cut
Surface of the pipe section (wingless part) sample
3.9 4.8
Take any one sample of each batch Cleanliness 3.10 4.9
Take any two thermal performance, each either take a sample 3.7 4.5
5.5 determination of test results
5.5.1 chemical composition unqualified, this batch of product failure
5.5.2 surface quality, hydrostatic pressure, pressure test, eddy current test failed when judged the root product failure; Dimensions unqualified,
The root sentenced pipe failed. After each batch exceeds the number of failed reception quality threshold, the entire batch of substandard or sentenced by the supplier shall be tested individually qualified
delivery.
5.5.3 mechanical properties, flaring test, flattening test, grain size, cleanliness, residual stress, thermal performance test results in specimen fails
When, should the batch of the product (the original product or unqualified Flanagan Flanagan on behal...
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