1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS18280EAEROSPACESTANDARDAS18280 REV. E Issued 1999-03 Revised 2010-01 Superseding AS18280D Fit
5、tings, 24 Cone Flareless, Fluid Connection, 3000 psi RATIONALETo correct material specification numbers in Table 1, to clarify fluorescent inspection for aluminum forgings, to add a thread requirement for ISO 3161, and periodic control test requirements under 4.5.3 have been clarified and simplified
6、. TABLE OF CONTENTS 1. SCOPE 41.1 Scope 41.2 Classification . 42. REFERENCES 42.1 Applicable Documents 42.1.1 SAE Publications . 42.1.2 U.S. Government Publications 62.1.3 NAS Publications 72.1.4 ASME Publications 72.1.5 ASQ Publications 72.1.6 ANSI Publications . 72.1.7 PRI Publications 72.1.8 ISO
7、Publications 82.1.9 ASTM Publications 82.2 Abbreviations and Acronyms 82.3 Definitions . 83. TECHNICAL REQUIREMENTS 83.1 Qualification 83.1.1 Product Qualification . 83.1.2 Manufacturer Qualification 83.1.3 Retention of Qualification 93.2 Material . 93.2.1 Heat Treatment . 93.2.2 Additional Physical
8、 Properties of Steel . 93.2.3 Parting Lines in Aluminum Forgings . 113.3 Design and Fabrication . 113.3.1 Passages 113.3.2 Threads . 113.4 Finish . 123.4.1 Aluminum Alloy . 123.4.2 Low Alloy Steel 12 3.4.3 Corrosion Resistant Steel . 123.4.4 Titanium Alloy Fittings . 123.4.4 Fabrication of Seal Area
9、s by Sub-tier . 133.5 Identification of Product 133.5.1 Manufacturers Identification . 13Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS18280E Page 2 of 313.5.2 Material Identification 143.5.3
10、 Marking for Part Number . 143.5.4 Color Identification 143.6 Performance 143.6.1 Proof Pressure 143.6.2 Burst Pressure 143.6.3 Pneumatic Pressure 153.6.4 Repeated Assembly 153.6.5 Impulse 153.6.6 Flexure, Alternate Test Methods . 153.6.7 Joint Strength 153.7 Workmanship 193.7.1 Machined and Unmachi
11、ned Surfaces . 193.7.2 Internal Passages . 193.7.3 Surface Texture . 193.7.4 Anodize Contact Marks. 193.7.5 Sealing Surfaces . 194. QUALITY ASSURANCE PROVISIONS 194.1 Responsibility for Inspection . 194.2 Inspection Lot 204.2.1 Material Certification . 204.2.2 Heat Treating Certification 204.3 Class
12、ification of Tests and Inspections . 204.4 Qualification Inspection . 204.4.1 Test Samples 204.4.2 General Testing Practice 204.4.3 Proof Pressure Test Procedure 234.4.4 Burst Pressure Test Procedure 234.4.5 Pneumatic Pressure Test Procedure 234.4.6 Repeated Assembly Test Procedure 234.4.7 Impulse T
13、est Procedure 234.4.8 Flexure Test Procedure 244.4.9 Joint Strength Test Procedure 254.5 Quality Conformance Inspection . 254.5.1 Sampling . 254.5.2 Examination and Inspection Methods . 274.5.3 Periodic Control Tests . 284.6 Material Tests 294.6.1 Electrical Conductivity and Hardness . 294.6.2 Hardn
14、ess of Steel Fittings . 294.6.3 Parting Lines in Aluminum Forgings . 294.7 Rejection and Retest . 295. PREPARATION FOR DELIVERY . 295.1 Cleaning 295.2 Preservation Application . 295.3 Packaging . 305.4 Package Identification . 305.5 Packing for Shipment 306. NOTES 306.1 References 306.2 Dimensions .
15、 306.3 Intended Use . 306.4 Lessons Learned, Aluminum Fittings and Their Use on Commercial Jet Aircraft 31Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS18280E Page 3 of 31TABLE 1 MATERIALS 10
16、TABLE 2 FITTING MATERIAL, OPERATING PRESSURE, AND FLEXURE TEST STRESS FOR FLARELESS FITTINGS WITH BITE TYPE SLEEVES OR INTERNALLY SWAGED SLEEVESWITH MACHINED ACORN ENDS WITH 304 1/8 HARD CORROSION RESISTANT STEEL TUBING (SEE 6.3) 16TABLE 3 FITTING MATERIAL, OPERATING PRESSURE, AND FLEXURE TEST STRES
17、S FORALUMINUM FLARELESS FITTINGS WITH MACHINED ACORN ENDS WITH ALUMINUMALLOY TUBING (SEE 6.3 AND 6.4) . 16TABLE 4 TUBING WALL THICKNESS, OPERATING PRESSURE, AND FLEXURE TEST STRESSFOR STEEL OR TITANIUM FLARELESS FITTINGS WITH TYPE 21-6-9 CORROSIONRESISTANT STEEL TUBING . 17TABLE 5 TUBING WALL THICKN
18、ESS, OPERATING PRESSURE, AND FLEXURE TEST STRESSFOR TITANIUM FLARELESS FITTINGS WITH TYPE 3.0AL 2.5V TITANIUM ALLOY TUBING 18TABLE 6 MINIMUM JOINT STRENGTH OF FLARELESS TUBE END ATTACHMENT FITTINGS,304 1/8 HARD CORROSION RESTISTANT STEEL TUBING . 18TABLE 7 TEST SAMPLES FOR QUALIFICATION INSPECTION A
19、ND PERIODIC CONTROL TESTS 21TABLE 8 FITTING ASSEMBLY TORQUE VALUES 22TABLE 9A CLASSIFICATION OF CHARACTERISTICS . 26TABLE 9B CLASSES, CHARACTERISTICS, AND QUALITY PARAMETERS, SAMPLING INSPECTION . 27TABLE 9C SAMPLING INSPECTION, TABLES FOR ISOLATED LOT APPLICATIONS 27TABLE 10 QUALITY CONFORMANCE INS
20、PECTION 28TABLE 11 PERIODIC CONTROL TEST REQUIREMENTS 29Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS18280E Page 4 of 311. SCOPE 1.1 Scope This SAE Aerospace Standard (AS) establishes the re
21、quirements for 24 degree cone flareless fluid connection fittings and nuts, internally or externally swaged, preset, or welded sleeves for use in aircraft fluid systems at nominal operating pressures up to and including 3000 psi. 1.2 Classification Fittings shall be furnished in the types and styles
22、 designated by the applicable AS, MS, NAS standard drawings. This specification includes the requirements for flareless fittings used with externally preset bite type sleeves and also for machined acorn fitting ends such as NAS1760, AS4458, and AS4703. It is intended to serve as a procurement specif
23、ication for the fittings described herein and in Section 6. The requirements for externally preset bite type sleeves are given in AS18280/1. The requirements for swaged or welded sleeves and tube ends are given in AS18280/2. 2. REFERENCES 2.1 Applicable Documents The following publications form a pa
24、rt of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of conflict between the text of this document and references cited herein, the
25、 text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside
26、USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS2472 Anodic Treatment of Aluminum Alloys Sulfuric Acid Process, Dyed CoatingAMS2486 Conversion Coating of Titanium Alloys Fluoride Phosphate Type AMS2488 Anodic Treatment - Titanium and Titanium Alloys Solution pH 13 or Higher AMS2658 Har
27、dness and Conductivity Inspection of Wrought Aluminum Alloy Parts AMS2700 Passivation Treatment for Corrosion Resistant Steel AMS2759/3 Heat Treatment Precipitation-Hardening Corrosion-Resistant and Maraging Steel Parts AMS2770 Heat Treatment of Wrought Aluminum Alloy Parts AMS2772 Heat Treatment of
28、 Aluminum Alloy Raw Material AMS4083 Aluminum Alloy Tubing, Hydraulic, Seamless, Drawn, Round 1.0Mg 0.60Si 0.28Cu 0.20Cr (6061-T6) Solution and Precipitation Heat Treated AMS4124 Aluminum Ally, Rolled or Cold Finished Bars, Rods, and Wire 5.6Zn 2.5Mg 1.6Cu 0.23Cr (7075-T7351) Solution Heat Treated,
29、Stress Relieved by Stretching, and Overaged AMS4133 Aluminum Alloy, Forgings and Rolled Rings, 4.4Cu - 0.85Si - 0.80Mn - 0.50Mg (2014-T6) Solution and Precipitation Heat Treated Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted wi
30、thout license from IHS-,-,-SAE AS18280E Page 5 of 31AMS4141 Aluminum Alloy Die Forgings 5.6Zn - 2.6Mg - 1.6Cu - 0.23Cr (7075-T73), Solution and Precipitation Heat Treated AMS4339 Aluminum Alloy Rolled and Cold Finished Bars and Rods 4.4 Cu - 1.5Mg - 0.60Mn (2024-T851) Solution Heat Treated, Cold Wor
31、ked and Artificially AgedAMS4928 Titanium Alloy Bars, Wire, Forgings, Rings, and Drawn Shapes 6Al-4V, Annealed AMS4946 Titanium Alloy Tubing, Seamless, Hydraulic 3Al-2.5V, Texture Controlled, Cold Worked, Stress RelievedAMS5561 Steel, Corrosion and Heat Resistant, Welded and Drawn or Seamless and Dr
32、awn Tubing 9.0Mn -20Cr - 6.5Ni - 0.28N High-Pressure Hydraulic AMS5564 Steel, Corrosion Resistant, Tubing 19Cr - 10Ni (SAE 30304) High-Pressure Hydraulic, Welded Plus Ultrasonically Tested or Seamless Cold Drawn, One Eighth Hard Temper AMS5566 Steel, Corrosion Resistant, Seamless or Welded Hydraulic
33、 Tubing 19Cr - 10Ni, (SAE 30304) High Pressure, Cold Drawn AMS5639 Steel, Corrosion-Resistant, Bars, Wire, Forgings, Tubing and Rings, 19Cr - 10Ni Solution Heat TreatedAMS5645 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing and Rings, 18Cr - 10Ni - 0.40Ti (SAE 30321) Solution Heat
34、Treated AMS5648 Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing and Rings, 17Cr - 12Ni - 2.5Mo Solution Heat Treated AMS5659 Steel, Corrosion-Resistant, Bars, Wire, Forgings, Rings and Extrusions, 15Cr - 4.5Ni - 0.30 (Cb (Nb) - 3.5Cu Consumable Remelted Precipitation Hardenable AMS
35、6370 Steel, Bars, Forgings and Rings, 0.95Cr - 0.20Mo (0.28-0.33C) (SAE 4130) AMS-H-6875 Heat Treatment of Steel Raw Materials AMS-QQ-A-225/6 Aluminum Alloy, 2024, Bar, Rod, and Wire; Rolled, Drawn, or Cold Finished AMS-QQ-A-225/9 Aluminum Alloy 7075, Bar, Rod, Wire and Special Shapes; Rolled, Drawn
36、, or Cold Finished AMS-QQ-P-416 Plating, Cadmium (Electrodeposited) AMS-T-6845 Tubing, Steel, Corrosion-Resistant (S30400), Aerospace Vehicle Hydraulic System 1/8 Hard ConditionAMS-T-7081 Tube, Aluminum Alloy, Seamless, Round, Drawn, 6061, Aircraft Hydraulic Quality AS478 Identification Marking Meth
37、ods ARP1185 Flexure Testing of Hydraulic Tubing Joints and Fittings AS1241 Fire Resistant Phosphate Ester Hydraulic Fluid for Aircraft AS1376 Alternate Dimensions, Center Body Section, Shape Fluid Fittings, Design Standard AS1581 Fitting, Sleeve, Flareless Acorn to Integral Weld Ring, 3000 psi AS209
38、4 Test Methods for Tube-Fitting Assemblies Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS18280E Page 6 of 31AS4375 Fitting End, Flareless, Design Standard AS4377 Fitting End, Bulkhead, Flarel
39、ess, Design Standard AS4444 Fittings, 24 Cone, Flareless, Fluid Connection, 5000 psi AS4458 Fitting End, Flareless, Blunt Nose, Design Standard AS4658 Fitting End, External Thread, Short Flareless, Design Standard AS4659 Fitting End, Bulkhead, External Thread, Short Flareless, Design Standard AS4703
40、 Fitting End, Acorn, Short Flareless, Design Standard AS5148 Assembly, Installation and Torque for Flareless and Straight Thread Fluid Fittings and Tube Assemblies AS5272 Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting, Procurement Specification AS5620 Titanium Hydraulic Tubing, Ti-3Al-2.5V
41、Cold Worked and Stress Relieved, Up to 35,000 kPa (5080 psi) Requirements for Qualification Testing and Control AS5863 Fitting End, 24 Cone, Flareless, Fluid Connection, Design Standard AS5864 Fitting End, 24 Cone, Bulkhead, Flareless, Fluid Connection, Design Standard AS7003 Nadcap Program Requirem
42、ents AS8879 Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter ARP9013 Statistical Product Acceptance Requirements AS18280/1 Sleeve, Bite Type, 24 Cone Flareless Fitting, 3000 psi AS18280/2 Sleeves, Internally or Externally Swaged or Welded, 24 Cone Flareless Fitt
43、ing, 3000 psi AS21914 Cap, Pressure Seal, Flareless Tube Fitting AS21922 Sleeve, Coupling, Flareless AS33514 Fitting End, Standard Dimensions for Flareless Tube Connection and Gasket Seal AS33515 Fitting End, Standard Dimensions for Bulkhead Flareless Tube Connections SAE DICTIONARY OF AEROSPACE ENG
44、INEERING 2.1.2 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/assist.daps.dla.mil/quicksearch or www.assist.daps.mil.MIL-A-8625 Anodic Coatings, for Aluminum an
45、d Aluminum Alloys MIL-HDBK-1655 Fittings, Flareless, Classification of Defects of MIL-PRF-5606 Hydraulic Fluid, Petroleum Base; Aircraft, Missile, and Ordnance MIL-PRF-6083 Hydraulic Fluid, Petroleum Base, For Preservation and Operation Copyright SAE International Provided by IHS under license with
46、SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS18280E Page 7 of 31MIL-PRF-83282 Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Aircraft Metric MIL-PRF-87257 Hydraulic Fluid, Petroleum Base, Missile Ordnance Reviewer Low Temperature, Syntheti
47、c Hydrocarbon Base, Aircraft and Missile FED-STD-595 Colors Used in Government Procurement 2.1.3 NAS Publications Available from Aerospace Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org.NAS1760 Fitting End, Flareless Acor
48、n, Standard Dimensions for 2.1.4 ASME Publications Available from American Society of Mechanical Engineers, 22 Law Drive, P.O. Box 2900, Fairfield, NJ 07007-2900, Tel: 973-882-1170, www.asme.org.ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay) ASME Y14.38 Abbreviation for Use on Drawings and in Text 2.1.5 ASQ Publications Available from American Society for Quality, 600 North Plankinton Avenue, Milwaukee, WI 53203, Tel: 800-248-1946 (North America) or +1-414-272-8575 (International), www.asq.org.ASQ Z1.4 Sampling Procedures and T
