1、AEROS PACE STANDARDMA614 RE V. AIssued 1994-01Revised 1998-06Superseding MA614(R) H ose A ssembl y , P olytetrafluoroethylene (PTFE), M e tallic R einforced ,28,000 kPa, 204 C, H ydraulic , M etric1. SCOPE:This SAE Aerospace Standard (AS) establishes the requirements for polytetrafluoroethylene (PTF
2、E) hose assemblies for use in aerospace hydraulic systems at temperatures between -55 C and 204 C and at a nominal pressure up to 28,000 kPa (280 bar). The hose assemblies are also suitable for use within the same temperature and pressure limitations in aerospace pneumatic systems where some gaseous
3、 diffusion through the wall of the PTFE liner can be tolerated.The use of these hose assemblies in high pressure pneumatic storage systems is not recommended. In addition, installations in which the limits specified herein are exceeded, or in which the application is not covered specifically by this
4、 document, for example, oxygen, shall be subject to the approval of the purchaser.1.1 Classification:Hoses covered by this document shall be of temperature, types and pressures classes covered in MA2001 (ISO 6771).2. REFERENCES:2.1 Applicable Documents:The following publications form a part of this
5、specification 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 purchase order. In the event of conflict between the text of this specification and references cited herein, the text
6、 of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a specific exemption is obtained.Reaffirmed 2004-07SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical a
7、nd engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time
8、 it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2004 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, phot
9、ocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.org Copyright SAE International Provided by IHS
10、under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE MA614 Revision A- 2 -2.1.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AMS 2486 Conversion Coating of Titanium Alloys, Fluoride-Phosphate TypeAMS 492
11、8 Titanium Alloy, Bars, Wire, Forgings, and Rings, 6Al 4V, AnnealedAMS 4945 Titanium Alloy, Tubing, Seamless, Hydraulic, 3Al 2.5v, Texture Controlled, 105 ksi Yield Strength Cold Worked, Stress RelievedAMS 4965 Titanium Alloy, Bars, Wire, Forgings, and Rings, 6Al 4V, Solution Heat TreatedAMS 5556 St
12、eel, Corrosion and Heat Resistant, Seamless or Welded Tubing, 18Cr 11Ni 0.70(Cb+Ta) (SAE 30347), Hydraulic, Solution Heat TreatedAMS 5557 Steel Tubing, Seamless and Welded, Corrosion and Heat Resistant, 18.5Cr 10.5Ni 0.40Ti (SAE 30321), Hydraulic, Solution Heat TreatedAMS 5561 Steel, Corrosion and H
13、eat Resistant, Welded and Drawn Tubing 9.0Mn 20Cr 6.5Ni 0.28N High-Pressure HydraulicAMS 5567 Steel Tubing, Seamless or Welded, Corrosion Resistant, 19Cr 10Ni (SAE 30304), Hydraulic, AnnealedAMS 5570 Steel, Corrosion and Heat Resistant, Seamless Tubing, 18Cr 11Ni 0.40Ti (SAE 30321), Solution Heat Tr
14、eatedAMS 5571 Steel, Corrosion and Heat Resistant, Seamless Tubing, 18Cr 10.5Ni 0.70(Cb+Ta) (SAE 30347), Solution Heat TreatedAMS 5573 Steel, Corrosion and Heat Resistant, Seamless Tubing, 17Cr 12.5Ni 2.5Mo, Solution Heat TreatedAMS 5575 Steel, Corrosion and Heat Resistant, Welded Tubing, 18Cr 10.5N
15、i 0.70(Cb+Ta) (SAE 30347), Solution Heat TreatedAMS 5576 Steel, Corrosion and Heat Resistant, Welded Tubing, 18Cr 10.5Ni 0.40Ti (SAE 30321), Solution Heat TreatedAMS 5581 Nickel Alloy, Corrosion and Heat Resistant, Seamless or Welded Tubing62Ni 21.5Cr 9.0Mo 3.7(Cb+Ta) AnnealedAMS 5636 Steel, Corrosi
16、on Resistant, Bars and Wire, 18Cr 9.0Ni (SAE 30302) Solution Heat Treated and Cold Drawn, 100 ksi Tensile StrengthAMS 5637 Steel, Corrosion Resistant, Bars and Wire, 18Cr 9.0Ni (SAE 30302) Solution Heat Treated and Cold Drawn, 125 ksi Tensile StrengthAMS 5639 Steel Bars, Wire, Forgings, Tubing and R
17、ings, Corrosion Resistant, 19Cr 10Ni (SAE 30304), Solution Heat TreatedAMS 5643 Steel, Corrosion Resistant, Bars, Wire, Forgings, Tubing and Rings, 16Cr 4.0Ni 0.30(Cb+Ta) 4.0Cu (SAE 17-4PH), Solution Heat Treated, Precipitation HardenableAMS 5644 Steel Bars and Forgings, Corrosion Resistant, 17Cr 7.
18、0Ni 1.0Al (SAE 17-4PH)AMS 5645 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing and Rings, 18Cr 10Ni 0.40Ti (SAE 30321), Solution Heat TreatedAMS 5646 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing and Rings, 18Cr 11Ni 0.60(Cb+ Ta) (SAE 30347), Solution Heat Treat
19、edAMS 5647 Steel, Corrosion Resistant, Bars, Wire, Forgings, Tubing and Rings, 19Cr 9.5Ni (SAE 304L), Solution Heat TreatedAMS 5648 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing, and Rings,17Cr 12Ni 2.5Mo, Solution Heat TreatedAMS 5653 Steel, Corrosion and Heat Resistant, Bars, W
20、ire, Forgings, Tubing and Rings,17Cr 12Ni 2.5Mo, Solution Heat TreatedCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE MA614 Revision A- 3 -2.1.1 (Continued):AMS 5659 Steel, Corrosion Resistant, Bar
21、s, Wire, Forgings, Rings and Extrusions, 15Cr 4.5Ni 0.30Cb 3.5Cu (SAE 15-5PH), Consumable Electrode Melted, Solution Heat Treated, Precipitation HardenableAMS 5666 Nickel Alloy, Corrosion and Heat Resistant, Bars, Forgings, Extrusions, and Rings,62Ni 21.5Cr 9.0Mo 3.65(Cb+Ta) AnnealedAMS 5688 Steel,
22、Corrosion Resistant, Wire, 18Cr 9.0Ni (SAE 30302) Spring TemperAMS 5689 Steel, Corrosion and Heat Resistant, Wire 18Cr 10.5Ni 0.40Ti (SAE 30321), Solution Heat TreatedAMS 5690 Steel, Corrosion and Heat Resistant, Wire 17Cr 12Ni 2.5Mo (SAE 30316), Solution Heat TreatedAMS 5697 Steel, Corrosion Resist
23、ant, Wire 19Cr 9.5Ni (SAE 30304), Solution Heat TreatedAMS 5743 Steel, Corrosion and Heat Resistant, Bars and Forgings 15.5Cr 4.5Ni 2.9Mo 0.10N (SAE AM-355), Solution Heat Treated, Sub-Zero Cooled, Equalized, and Over-TemperedAS150 Hose Assembly, Type Classifications of, Basic Performance and Fire R
24、esistanceAS478 Identification Marking MethodsAS611 Tetrafluoroethylene Hose Assembly Cleaning MethodsARP908 Hose Fitting - Installation and Qualification Test Torque RequirementsAS1055 Fire Testing of Flexible Hose, Tube Assemblies, Coils, Fittings and Similar System ComponentsARP1835 Preparation fo
25、r Delivery, General Requirements for Hose AssembliesMA 1370 (ISO 5855) Screw Threads - MJ Profile, MetricMA 2001 (ISO 6771) Aerospace Fluid Systems and Components- Pressure and Temperature ClassificationsMA 2014 Fitting End, Acorn Flareless, Design Standard, MetricMA 2078 (ISO 8829) Test Methods, Ho
26、se Assemblies, Polytetrafluoroethylene (PTFE), MetricMA 2095 Fitting Design Standard, 24 Cone2.1.2 ASTM Publications: Available from ASTM, 100 Barr Harbor, West Conshohocken, PA19428-2959.ASTM A 262 Standard Recommended Practices for Detecting Susceptibility to Intergranular Attack in Stainless Stee
27、lASTM A 313 Standard Specification for Stainless Steel Spring WireASTM A 580 Specification for Stainless and Heat Resisting Steel WireCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE MA614 Revision
28、A- 4 -2.1.3 U.S. Government Publications: Available from DODSSP, Subscription Services Desk, Building4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.P-D-680 Dry Cleaning SolventQQ-P-35 Passivation Treatments for Corrosion-Resistant SteelsQQ-S-763 Steel Bars, Wire Shapes, and Forgings, Corrosion-
29、ResistingMIL-F-85421 Fittings, Tube, Fluid Systems, Separable, Beam Seal, 3000/4000 psi, General Specification forMIL-STD-100 Engineering Drawing PracticesMIL-STD-831 Test Reports, Preparation of2.1.4 ASME Publications: Available from ASME, 22 Law Drive, Box 2900, Fairfield, NJ 07007-2900.ASME B46.1
30、 Surface Texture 3. TECHNICAL REQUIREMENTS:3.1 Qualification:Hose assemblies supplied in accordance with this document shall be representative of products which have been subjected to and which have successfully passed the requirements and tests specified in this document.3.2 Material:The hose assem
31、blies shall be uniform in quality and free from defects in material as is consistent with good manufacturing practice and shall conform to applicable specifications and the requirements specified herein.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction o
32、r networking permitted without license from IHS-,-SAE MA614 Revision A- 5 -3.2.1 Metals: Metals used in the hose shall be corrosion-resistant steel and corrosion-resistant steel, nickel alloy or titanium in the fittings and conform to the following specifications:a. Bars and Forgings:(1) QQ-S-763 Cl
33、ass 302 - Cond. A or Cond. B (AMS 5636 or AMS 5637)(2) QQ-S-763 Class 304 - Cond. A or Cond. B (AMS 5639)(3) QQ-S-763 Class 304L - Cond. A (AMS 5647)(4) QQ-S-763 Class 316 - Cond. A (AMS 5648)(5) QQ-S-763 Class 316L - Cond. A (AMS 5653)(6) QQ-S-763 Class 321 - Cond. A (AMS 5645)(7) QQ-S-763 Class 34
34、7 - Cond. A (AMS 5646)(8) AMS 5643 17-4PH(9) AMS 5644 17-7PH(10) AMS 5659 15-5PH(11) AMS 5743 AM-355(12) AMS 4928 Titanium 6Al-4V Annealed(13) AMS 4965 Titanium 6Al-4V Heat Treated(14) AMS 5666 Nickel Alloy Type 625b. Tubing:(1) AMS 5567 Type 1 or Type 2 Stainless Steel Tubing, 304(2) AMS 5573 Seaml
35、ess Stainless Steel Tubing, 316(3) AMS 5557 Type 1 or Type 2 Stainless Steel Tubing, 321(4) AMS 5570 Seamless Stainless Steel Tubing, 321(5) AMS 5576 Welded Stainless Steel Tubing, 321(6) AMS 5571 Seamless Stainless Steel Tubing, 347(7) AMS 5575 Welded Stainless Steel Tubing, 347(8) AMS 5556 Type 1
36、or Type 2 Stainless Steel Tubing, 347(9) AMS 5561 Welded Stainless Steel Tubing, 21-6-9(10) AMS 4945 Titanium 3Al-2.5V Texture Controlled(11) AMS 5581 Type 1 or Type 2 Nickel Alloy Tubing, 625c. Wire:(1) ASTM A 580/ A 313 Comp. 302 (AMS 5688)(2) ASTM A 580/ A 313 Comp. 304 (AMS 5697)(3) ASTM A 580/
37、A 313 Comp. 316 (AMS 5690)(4) ASTM A 580/ A 313 Comp. 321 (AMS 5689)Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE MA614 Revision A- 6 -3.3 Design and Construction:The hose assembly shall consist
38、of a seamless PTFE inner tube, corrosion-resistant steel wire reinforcement, and corrosion-resistant steel, nickel alloy or titanium end fittings as required to meet the construction and performance requirements of this document and as required for its intended use.3.3.1 Inner Tube: The inner tube s
39、hall be of a seamless construction of virgin PTFE resin of uniform gage. It shall have a smooth bore and shall be free from pitting or projections on the inner surface. Additives may be included in the compound from which the tube is extruded.3.3.2 Reinforcement: The reinforcement shall consist of c
40、orrosion-resistant steel wires conforming to the applicable specifications listed in 3.2.1. The wires shall be so arranged over the inner tube as to provide sufficient strength to ensure conformance with the requirements specified herein. Broken or missing reinforcing wires or buckled wires more tha
41、n 1.5 mm above the outside diameter surface shall be cause for rejection. Crossed-over reinforcing wires shall not be cause for rejection of the hose assembly.3.3.3 Fittings: All fittings shall be permanently attached and proven to meet the requirements herein. Unless specified otherwise by the user
42、, the hose assemblies shall have flareless fittings conforming to MA2014 to mate with MA2095 end fittings.3.3.3.1 Alternate Fittings: Requalification using alternate end connections (flared or dynamic beam seal) is not required if identical hose to fitting attachment design as qualified is used and
43、the fitting otherwise meets the applicable fitting procurement specification such as MIL-F-85421.3.3.3.2 Insert Fittings: Insert fittings shall be of one piece construction to wherever possible. Those made of other than one piece construction shall be butt welded from corrosion-resistant steel tubin
44、g or titanium unless otherwise agreed with the purchaser. Welded and redrawn tubing may be used for corrosion-resistant steel. As an option, fittings may be made from forgings.3.3.3.3 End Fitting Collars (Sockets): All end fitting collars (sockets) crimped or swaged, fabricated from Type 304 stainle
45、ss steel are required to be capable of passing an embrittlement test as specified in ASTM A 262 Practice E, prior to assembly to the nipple or swaging operation. Sockets fabricated from stabilized austenitic steel (304L, 321, or 347) are acceptable without being subjected to the embrittlement test.
46、Titanium sockets are not recommended.3.3.3.4 Fitting Finish:3.3.3.4.1 Corrosion Resistant Steel Parts: Unless otherwise specified, corrosion resistant steel parts shall be passivated in accordance with QQ-P-35.3.3.3.4.2 Titanium Alloy Parts: Titanium alloy parts shall be fluoride phosphate coated pe
47、r AMS 2486.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE MA614 Revision A- 7 -3.3.4 Inner Tube Requirements:3.3.4.1 Specific Gravity: The specific gravity values of the hose inner tube shall not
48、exceed 2.155 apparent and 2.210 relative when determined in accordance with MA2078.NOTE: When test samples are prepared from braided hose, the braid impression must be removed prior to testing.3.3.4.2 Tensile Strength: When tested in accordance with MA2078 the longitudinal tensile strength for all s
49、izes of tubes shall be 15.1 MPa. The transverse tensile strength for sizes DN16 and larger shall be 12.4 MPa minimum. For sizes DN12 and smaller the transverse tensile strength need not be tested.3.3.4.3 Elongation: Elongation shall be a minimum of 200% when tested in accordance with MA2078.3.3.4.4 Tube Roll: The tube shall not leak, split, burst, or show any evidence of malfunction when rolled to the flattening and rounding gaps of MA
