Standard
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AS 1569-1998
[Current]Copper and copper alloys — Seamless tubes for heat exchangers
Specifies requirements for round seamless copper and copper alloy heat exchanger tubes for use in condensers, evaporators, heaters and coolers. Provision is also made for heat exchanger tube for pressure equipment. Tube may be supplied as straight lengths or U-bends, with outside diameters of 6.35 mm and above.
Published: 05/10/1998
Pages: 15
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 REFERENCED DOCUMENTS
3 DESIGNATION
3.1 General
3.2 Alloy designation
3.3 Temper designation
3.4 Dimension designation
4 FORM AND TEMPER OF TUBES
4.1 Straight lengths
4.2 U-bend tubes
4.2.1 Temper condition prior to bending (except alloy C12200)
4.2.2 Stress relief treatment after bending
5 CHEMICAL COMPOSITION
5.1 General
5.2 Chemical analysis
6 FREEDOM FROM DEFECTS
7 DIMENSIONAL TOLERANCE REQUIREMENTS
7.1 Mean outside diameter
7.2 Maximum outside diameter
7.3 Diameter of tube in U-bend section
7.4 Wall thickness of straight portion of tubes
7.5 Wall thickness of tube in U-bend section
7.6 Length of straight tubes
7.7 Length of U-bend tube legs
7.8 Bend requirements for U-bend tubes
7.9 Squareness of cut ends
7.10 Straightness
8 SELECTION AND PREPARATION OF TEST SAMPLES (not applicable to non-destructive tests)
8.1 Selection
8.2 Test pieces
9 MECHANICAL TESTS
9.1 Hardness test
9.2 Flattening test
9.3 Drifting test
9.4 Tensile test (applicable only to tube supplied to AS/NZS 1200)
10 NON-DESTRUCTIVE TESTS
10.1 General
10.1.1 Tubes in straight lengths
10.1.2 U-bend tubes
10.2 Eddy current test
10.3 Hydrostatic test
10.4 Pneumatic test
11 STRESS CRACKING TESTS
11.1 Preparation of test pieces
11.1.1 Tubes in straight lengths
11.1.2 U-bend tubes
11.2 Mercurous nitrate test (not applicable to alloy C12200)
11.3 Ammonia vapour cracking test (applicable to alloys C26130, C44300 and C68700 in the O and ¼H tempers only)
11.3.1 General
11.3.2 Preparation of test solution
11.3.3 Method of test
12 GRAIN SIZE (applicable to O and ¼H tempers only)
13 RETESTS
14 MARKING
15 ROUNDING OF TEST RESULT VALUES
APPENDIX A
A1 GENERAL
A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
A3 TEST REQUIREMENTS
A3.1 General
A3.2 Non-destructive testing
A3.3 Independent tests
A4 CALCULATION OF SAFE WORKING PRESSURES
A5 CERTIFICATES
A5.1 Certificate of compliance
A5.2 Test certificate
APPENDIX B
Cited references in this standard
BS 1748
Methods for the analysis of copper alloys (all parts)
ASTM E 243
Practice for electromagnetic (eddy-current) examination of copper and copper-alloy tubes
ASTM B 111
Specification for copper and copper-alloy seamless condenser tubes and ferrule stock
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