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 there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this p
3、ublication may 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: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/MA4095 AEROSPACE STANDARD MA4095 Issued 1996-11 Reaffirmed 2015-08 Hose Assembly,
5、 Polytetrafluoroethylene, Para-Aramid Reinforced 135 C, 34 500 kPa, Hydraulic and Pneumatic RATIONALE MA4095 has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE:This SAE Metric Aerospace Standard (MA) defines the requirements for heavy-duty polytetrafluoroethylene (PTFE) lin
6、ed, para-aramid reinforced, hose assembly suitable for use in 135 C, 34,500 kPa, aircraft and missile hydraulic fluid systems.2. REFERENCES:2.1 Applicable Documents:The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall appl
7、y. 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 text of this document takes precedence. Nothing in this document, however, supersedes applicable l
8、aws and regulations unless a specific exemption has been obtained.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 3380 Hose, Polytetrafluoroethylene, TFE Fluorocarbon Resin, Wi
9、re Braid ReinforcedAMS 4928 Ti Alloy Bars, Forgings and Rings, 6Al - 4V, Annealed - 120,000 psiAMS 4944 Ti Alloy Tubing, Seamless Hydraulic 3.0AI - 2.5V Cold-Worked, Stress RelievedAMS 4945 Titanium Alloy Tubing, Seamless, Hydraulic, 3A1 - 2.5V, Texture Controlled, 105,000 psi Yield StrengthAMS 4965
10、 Ti Alloy Bars, Forgings and Rings, 6Al - 4V, Solution and Precipitation Heat TreatedAMS 5556 Steel Tubing, Seamless or Welded, Corrosion and Heat-Resistant, 18Cr - 11Ni - (Cb+Ta) (SAE 30347) HydraulicSAE INTERNATIONAL MA4095 Page 2 of 22 2.1.1 (Continued):AMS 5557 Steel Tubing, Seamless and Welded,
11、 Corrosion and Heat-Resistant, 18Cr - 11Ni-Ti (SAE 30321) HydraulicAMS 5561 Steel Tubing Welded and Drawn, 9.0Mn - 20Cr - 6.5Ni - 0.28N, High Pressure HydraulicAMS 5567 Steel Tubing, Seamless and Welded, Corrosion Resistant, 19Cr - 10Ni (SAE 30304) Hydraulic, Solution TreatedAMS 5570 Steel Tubing, S
12、eamless, Corrosion and Heat-Resistant, 18Cr - 11Ni - 0.40Ti (SAE 30321)AMS 5571 Steel Tubing, Seamless, Corrosion and Heat-Resistant, 18Cr - Ni - 0.70(Cb+Ta) (SAE 30347)AMS 5575 Steel Tubing, Welded, Corrosion and Heat-Resistant, 18Cr - 10.5Ni - 0.70(Cb+Ta) (SAE 30347)AMS 5576 Tubing, Welded, 18Cr -
13、 10.5Ni - 0.40Ti Solution Heat TreatedAMS 5636 Steel Bars, Corrosion-Resistant, 18Cr - 9.0Ni (SAE 30302)AMS 5637 Steel Bars, Corrosion-Resistant, 18Cr - 9.0Ni (SAE 30302)AMS 5639 Steel Bars, Forgings, Tubing, and Rings, Corrosion-Resistant, 19Cr - 10Ni (SAE 30304)AMS 5643 Steel Bars, Forgings, Tubin
14、g, and Rings, Corrosion-Resistant, 16.5Cr - 4.0Ni - 4.0CuAMS 5644 Steel Bars, Forgings, Corrosion-Resistant, 17Cr - 7Ni - 1AlAMS 5645 Steel Bars, Forgings, Tubing, and Rings, Corrosion and Heat-Resistant, 18Cr - 10Ni - 0.40Ti (SAE 30321)AMS 5646 Steel Bars, Forgings, Tubing, and Rings, Corrosion and
15、 Heat-Resistant, 18Cr - 11Ni - 0.60(Cb+Ta) (SAE 30347)AMS 5647 Steel Bars, Forgings, Tubing, and Rings, 18Cr - 8NiAMS 5659 Steel Bars, Forgings, and Rings, Corrosion-Resistant, 15Cr - 4.5Ni - 0.30(Cb+Ta) - 3.5 Consumable Electrode MeltedAMS 5743 Steel Bars and Forgings, Corrosion and Moderate Heat-R
16、esistant, 15.5Cr - 4.5Ni - 2.9Mo - 0.10N, Solution Heat-Treated, Sub-Zero Cooled, Equalized and Over-TemperedARP603 Impulse Testing of Hydraulic Hose Tubing and Fittings AssembliesAS611 Tetrafluoroethylene Hose Assembly Cleaning MethodsARP908 Torque Requirements, Installation and Qualification Test,
17、 Hose, and Tube FittingAS1055 Fire Testing of Flexible Hose, Tube Assemblies, Coils, Fittings, and Similar System ComponentsAIR1228 Standard Impulse Machine Equipment and OperationAS1241 Fire Resistant Phosphate Ester Hydraulic Fluid for AircraftAS1703 In-Flight Thrust DeterminationARP1835 Preparati
18、on for Delivery, General Requirements for Hose AssembliesMA2014 Fitting End, Flareless Acorn, MetricSAE INTERNATIONAL MA4095 Page 3 of 22 2.1.1 (Continued):MA2078 Test Methods, Hose Assemblies, Polytetrafluoroethylene (PTFE)MA2096 Fitting End, 24 Cone, Bulkhead, Metric, Standard Dimension for, Desig
19、n StandardMA2273 Fitting End, Beam Seal, External Thread, Design Standard, Metric2.1.2 ASTM Publications: Available from American Society for Testing and Materials, 100 Barr Harbor, West Conshohocken, PA 19428-2959.ASTM A 262 Detecting Susceptibility to Intergranular Attack on Stainless SteelASTM A
20、580 Stainless and Heat-Resistant Steel Wire - Type 304 or 316, Condition B2.1.3 U.S. Government Publications: Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.P-D-680 Dry Cleaning SolventQQ-P-35 Passivation Treatment for Corrosion Resist
21、ant SteelQQ-S-763 Steel Bars, Wire Shapes, and Forgings, Corrosion-ResistingMIL-C-5501 Caps and Plugs, Protective, Dust and Moisture SealMIL-F-85720 Fittings, Tube, Fluid Systems, Separable, High Pressure DynamicMIL-H-5606 Hydraulic Fluid, Petroleum Base, Aircraft, Missile, and OrdnanceMIL-H-83282 H
22、ydraulic Fluid, Fire-Resistant, Synthetic Hydrocarbon Base, AircraftMIL-L-7808 Lubricating Oil, Aircraft Turbine Engine, Synthetic BaseMIL-L-46010 Lubricant, Solid Film, Heat Cured, Corrosion InhibitingMIL-T-8504 Tubing, Steel, Corrosion-Resisting (304) Aerospace Vehicle Hydraulic Systems, Annealed,
23、 Seamless, and WeldedMIL-T-8808 Tubing, Steel, Corrosion-Resistant (18-8 Stabilized), Aircraft Hydraulic QualityMIL-STD-100 Engineering Drawing PracticesMIL-STD-831 Test Reports, Preparation ofMS19059 Balls, Bearing, Ferrous, Chrome Alloy SteelMS33656 Fitting End, Standard Dimension for Flared Tube
24、Connection and Gasket Seal2.1.4 ANSI Publications: Available from ANSI, 11 West 42nd Street, New York, NY 10036-8002. i8ANSI/ASME B46.13. TECHNICAL REQUIREMENTS:3.1 Qualification:The hose assemblies furnished under this document shall be products which are qualified by meeting all the requirements c
25、overed by this document.SAE INTERNATIONAL MA4095 Page 4 of 22 3.2 Materials:The hose assembly materials shall be uniform in quality, free from defects, consistent with good manufacturing practice and shall conform to applicable specifications, and the requirements specified herein, and shall be of t
26、he highest quality and suitable for the purpose intended.3.2.1 Metals: Metals used in the hose and fittings shall be corrosion-resistant and shall conform to the following specifications:a. Bars and Forgings:QQ-S-763 Class 302 - Cond. A and Cond. B (AMS 5636 and AMS 5637)QQ-S-763 Class 304 - Cond. A
27、 and Cond. B (AMS 5639)QQ-S-763 Class 304L - Cond. A (AMS 5647)QQ-S-763 Class 321 - Cond. A (AMS 5645)QQ-S-763 Class 347 - Cond. A (AMS 5646)AMS 5643 17-4PHAMS 5644 17-7PHAMS 5659 15-5PHAMS 5743 AM-355AMS 4928 Ti 6Al 4V AnnealedAMS 4965 Ti 6Al 4V Heat Treatedb. Tubing:MIL-T-8504 Comp. 304 (AMS 5567)
28、MIL-T-8808 Type I or Type II, Comp. 321 (AMS 5557, AMS 5570, or AMS 5576)MIL-T-8808 Type I or Type II, Comp. 347 (AMS 5571, AMS 5575, or AMS 5556)AMS 4944 Titanium 3AI 2.5V Cold Worked and Stress RelievedAMS 4945 Titanium 3Al 2.5V Texture ControlledAMS 5561 Welded and Redrawn Stainless Steel Tubing,
29、 21-6-9c. Wire:ASTM A 580 Specification for Stainless and Heat-Resisting Steel Wire, Type 304 or 316 Condition B3.2.2 Reinforcement: Para-aramid textile treated and applied to the hose with an outer polyester braid or polybenzimidazol/para-aramid blend braid cover to meet all of the requirements her
30、ein.3.2.3 Finish:3.2.3.1 Cres stainless steel, passivate per QQ-P-35.3.2.3.2 Titanium fluoride phosphate conversion coating shall be per AMS 2486 when applicable.SAE INTERNATIONAL MA4095 Page 5 of 22 3.3 Construction:The hose assembly shall consist of a seamless polytetrafluoroethylene (PTFE), inner
31、 tube, treated para-aramid reinforcement, polyester or polybenzimidazol/para-aramid blend braid cover and corrosion-resistant metal and/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:
32、 The inner tube shall be of a seamless construction of virgin PTFE resin of uniform gauge. It shall have a smooth bore and shall be free from pitting, deep scratches, or projections on the inner surface. Additives may be included in the compound from which the tube is extruded.3.3.2 Reinforcement: T
33、he reinforcement shall consist of a treated para-aramid braid and/or wraps with braided polyester or polybenzimidazol/para-aramid blend braid cover conforming to the applicable specifications listed in 3.2.2. The reinforcement shall be so arranged over the inner tube as to provide sufficient strengt
34、h to ensure conformance with the requirements specified herein. Broken reinforcing cords shall be cause for rejection. The outer braid shall provide 100% coverage to protect the para-aramid from exposure to ultraviolet light. A continuous lay line interrupted with MA4095 and the hose manufacturers n
35、ame and trademark shall be permanently marked in contrasting color along the length of the hose.3.3.3 Fittings: All fittings shall be permanently attached by crimp or swage and proven to meet the requirements herein. Standard hose assemblies shall have flared fittings to mate with MS33656; flareless
36、 fittings according to NAS 1760 to mate with MS33514; or a reconnectable configuration of beam seal fittings to mate with MIL-F-85720/1; or other suitable end connections. Fitting hex portions shall fit standard wrench openings. All internal surfaces of fitting nuts shall be dry filmed with dry film
37、 per MIL-L-46010. Dry film on external surfaces is optional.3.3.3.1 Straight Fittings: Nipples shall be of one-piece construction. Weld or braze joints must not be located in the fluid paths, except welded and redrawn tubing per MIL-T-8504 or MIL-T-8808 may be used.3.3.3.2 Other Fittings: Other fitt
38、ings including elbow fittings shall be of one piece construction to the maximum extent possible. However, those made with other than one piece construction shall use stainless steel welded and redrawn tubing per AMS 5561 or titanium seamless tubing per AMS 4944 or AMS 4945. When weld joints are requ
39、ired, the butt weld method will be used.3.3.3.3 End Fitting Collars (Sockets): All end fitting collars (sockets), crimped or swaged, fabricated from Type 304 stainless steel are required to be capable of passing an embrittlement test as specified in ASTM A 262 Practice E, prior to assembly to the ni
40、pple or swaging operation. Sockets fabricated from stabilized austenitic steel (304L, 321, or 347) are acceptable without being subjected to the embrittlement test. Titanium sockets are not recommended.SAE INTERNATIONAL MA4095 Page 6 of 22 3.4 Dimensions:The hose assembly dimensions, except for leng
41、th, shall be as specified in Figure 1 and Table 1.FIGURE 1 - Hose and Fitting DimensionsTABLE 1 - Hose and Fitting Dimensions (mm)3.4.1 Hose Weight: Hose consisting of inner tube and reinforcement, as outlined in 3.3.1 and 3.3.2, shall not exceed the maximum hose weights specified in Table 2A.SAE IN
42、TERNATIONAL MA4095 Page 7 of 22 TABLE 2 - Hose WeightsTABLE 2A - Physical RequirementsTABLE 2B - Pressure Requirements (kPa)3.5 Performance:The hose assembly shall meet the following performance requirements:3.5.1 Tube:3.5.1.1 Tube Roll: The tube shall not leak, split, burst, or show any evidence of
43、 malfunction, when rolled to the flattening and rounding gaps of MA2078 (21,000 kPa or higher) values. The test method is specified in 4.6.2.1.3.5.1.2 PTFE Tube Proof Pressure: The tube, without reinforcement, shall not leak, burst, or show any evidence of malfunction, when tested to MA2078 (21,000
44、kPa or higher) proof-pressure values. Test method is specified in 4.6.2.1.3.5.1.3 Tensile Strength: The longitudinal tensile strength for all sizes of tubes shall be 15,180 kPa minimum at 25 C 5. The transverse tensile strength for sizes DN16 and larger shall be 12,420 kPa minimum at the same temper
45、ature. For sizes DN12 and smaller, the transverse tensile strength need not be tested. The test method is specified in 4.6.2.2.3.5.1.4 Elongation: Elongation shall be a minimum of 200%. Test method is specified in 4.6.2.3.3.5.1.5 Specific Gravity: The specific gravity values of the hose inner tube s
46、hall not exceed 2.155 apparent and 2.190 specific. The test method is specified in 4.6.2.4.SAE INTERNATIONAL MA4095 Page 8 of 22 3.5.2 Hose Assembly: The reinforced hose assembled with end fittings, shall meet the following performance requirements:3.5.2.1 Proof Pressure: The hose assembly shall wit
47、hstand the proof pressure listed in Table 2B without malfunction or leakage. The test method is specified in 4.6.3.3.5.2.2 Elongation and Contraction: The hose assembly shall not change in length by more than 2% in 25 cm of hose length when subjected to the maximum operating pressure for a minimum o
48、f 5 min. The test method is specified in 4.6.4.3.5.2.3 Volumetric Expansion: The volumetric expansion of the hose assemblies shall not exceed the limits specified in Table 2A. The test method is specified in 4.6.5.3.5.2.4 Leakage: The hose assembly shall not leak (no external wetting) when subjected
49、 to two pressure cycles of 70% of minimum room temperature burst pressure. The test method is specified in 4.6.6.3.5.2.5 Burst Pressure:3.5.2.5.1 Room Temperature Burst Pressure: The hose assembly shall not leak nor burst at any pressure below the room temperature burst value specified in Table 2B. The test method is specified in 4.6.7.1.3.5.2.5.2 High Temperature Burst Pressure: The hose assembly shall not leak nor burst at any press
