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 reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication m
3、ay 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: 724-776-4970 (outside USA)
4、 Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org AS1424 REV. G AEROSPACE STANDARD Issued 1989-11 Revised 2007-12 Superseding AS1424F (R) Hose Assemblies, Metal, Medium Pressure, High Temperature RATIONALE This specification is being revised to reinstate the use of
5、as-welded tube material for the metal inner liner, to identify the current Type 1 and Type 2 inner tube as seamless or welded and redrawn tube material and to add Type 3 and Type 4 for the as welded tube material. 1. SCOPE This SAE Aerospace Standard (AS) covers medium-pressure, high-temperature, fl
6、exible, metal-hose assemblies suitable for operation in pneumatic systems up to 800 F with excursion to 1200 F for Class “B” and “N” and primarily for use on jet aircraft power plants. Refer to 1.2.1 for recommended usage. 1.1 Types a. Type 1: Convoluted helical inner tube, seamless or welded and re
7、drawn tube material. b. Type 2: Convoluted annular inner tube, seamless or welded and redrawn tube material. c. Type 3: Convoluted helical inner tube, as-welded tube material. d. Type 4: Convoluted annular inner tube, as-welded tube material. NOTE: Unless otherwise specified on a design activity con
8、trolled drawing, or contract, Type 1, Type 2, Type 3, or Type 4 inner tube construction may be supplied. 1.2 Classes Hose assemblies furnished under this document may be of the following classes. If no class is defined the class “S” shall be utilized. a. Class “A“: Corrosion resistant Type 321 convo
9、luted inner tube and nickel alloy Type 625 or 718 fitting components. b. Class “B“: Nickel alloy Type 625 convoluted inner tube and nickel alloy Type 625 or 718 fitting components Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted
10、without license from IHS-,-,-SAE AS1424 Revision G - 2 - c. Class “N“: Nickel alloy Type 625 convoluted inner liner and corrosion resistant Type 321 or 347 fitting components. d. Class “S“: Corrosion resistant Type 321 convoluted inner liner and corrosion resistant Type 321 or 347 fitting components
11、. NOTE: Refer to Table 1 for specific fitting material definition. 1.2.1 Recommended Usage a. Class “A” and “S” hose assemblies are recommended for continuous service use in static applications up to 800 F maximum. b. Class “B” and “N” hose assemblies are recommended for continuous service use in bo
12、th static and dynamic flexure applications at continuous temperature up to 800 F with excursions to 1200 F within the pressure limits as defined in Figure 2. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this document to the extent specified herein. The latest issu
13、e 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 this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, sup
14、ersedes 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 USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS 2759 Heat Treat
15、ment of Steel Parts General Requirements AMS 5510 Steel, Corrosion and Heat Resistant, Sheet, Strip, and Plate, 18Cr 10.5Ni 0.40Ti (SAE 30321) Solution Heat Treated AMS 5556 Steel, Corrosion and Heat Resistant, Seamless or Welded Tubing, 18Cr 11Ni 0.70Cb (SAE 30347), Solution Heat Treated AMS 5557 S
16、teel, Corrosion and Heat Resistant, Seamless or Welded Hydraulic Tubing 18.5Cr 10.5Ni 0.40Ti (SAE 30321) Solution Heat Treated AMS 5570 Steel, Corrosion and Heat Resistant, Seamless Tubing, 18Cr 11Ni 0.40Ti (SAE 30321), Solution Heat Treated AMS 5571 Steel, Corrosion and Heat Resistant, Seamless Tub
17、ing, 18Cr 10.5Ni 0.70Cb (Nb) (SAE 30347), Solution Heat Treated AMS 5581 Nickel Alloy, Corrosion and Heat Resistant, Seamless or Welded Tubing, 62Ni 21.5Cr 9.0Mo 3.7Cb, Annealed AMS 5589 Nickel Alloy, Corrosion and Heat Resistant, Seamless Tubing 52.5Ni 19Cr 3.0Mo 5.1Cb 0.9Ti 0.5Al 18Fe Consumable E
18、lectrode or Vacuum Induction Melted, 1775F (968C), Solution Heat Treated Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS1424 Revision G - 3 - AMS 5599 Nickel Alloy, Corrosion and Heat Resistan
19、t, Sheet, Strip, and Plate, 62Ni 21.5Cr 9.0Mo 3.7(Cb+Ta), Annealed AMS 5645 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing, and Rings 18Cr 10Ni 0.40Ti (SAE 30321) Solution Heat Treated AMS 5646 Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Tubing, and Rings 18Cr 11Ni
20、0.60Cb (SAE 30347) Solution Heat Treated AMS 5662 Nickel Alloy, Corrosion and Heat Resistant, Bars, Forgings, and Rings 52.5Ni 19Cr 3.0Mo 5.1Cb (Nb) 0.90Ti 0.50Al 19Fe Consumable Electrode or Vacuum Induction Melted, 1775F (968C), Solution Heat Treated, Precipitation Hardenable AMS 5663 Nickel Alloy
21、, Corrosion and Heat Resistant, Bars, Forgings, and Rings 52.5Ni 19Cr 3.0Mo 5.1Cb (Nb) 0.90Ti 0.50Al 19Fe Consumable Electrode or Vacuum Induction Melted, 1775F (968C), Solution and Precipitation Heat Treated AMS 5666 Nickel Alloy, Corrosion and Heat Resistant, Bars, Forgings, Extrusions and Rings,
22、62Ni 21.5Cr 9.0Mo 3.65(Cb+Ta) Annealed AMS 5680 Steel, Corrosion and Heat Resistant, Welding Wire, 18.5Cr 11Ni 0.40Cb (SAE 30347) AMS 5689 Steel, Corrosion and Heat Resistant, Wire, 18Cr 10.5Ni 0.40Ti, Solution Heat Treated AMS 5832 Nickel Alloy, Corrosion and Heat Resistant Welding Wire, 52.5Ni 19C
23、r 3.0Mo 5.1Cb 0.90Ti 0.50Al 18Fe Consumable Electrode or Vacuum Induction Melted AMS 5837 Nickel Alloy, Corrosion and Heat Resistant, Welding Wire, 62Ni 21.5Cr 9.0Mo 3.7Cb (Nb) AMS-QQ-S-763 Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings ARP908 Torque Requirements, Installation and Qual
24、ification Test, Hose and Tube Fitting ARP1835 Preparation for Delivery, General Requirements for Hose Assemblies AS4370 Nut, Fitting, Retained AS4375 Fitting End, Flareless, Design Standard AS4395 Fitting End, Flared Tube Connection, Design Standard AS7003 Nadcap Program Requirements AS7112 National
25、 Aerospace and Defense Contractors Accreditation Program (NADCAP) Requirements for Fluid System Components AS8879 Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor Diameter AS21921 Nut, Sleeve Coupling, Flareless AS85421 Fittings, Tube, Fluid Systems, Separable, Beam Seal
26、, 3000/4000 psi, General Specifications for Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS1424 Revision G - 4 - 2.1.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Driv
27、e, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A 580 Stainless and Heat-Resistant Steel Wire - Type 321 or 347, Condition A ASTM B 444 Nickel-Chromium-Molybdenum-Columbium Alloys, Pipe and Tube (UNS 06625) 2.1.3 NAS Publications Available from Aerospace Ind
28、ustries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org. NAS847 Caps and Plugs, Protective, Dust and Moisture Seal NAS1760 Fitting End, Flareless Acorn, Standard Dimensions for 2.1.4 U.S. Government Publications Available from the Do
29、cument 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/. AN818 Nut, Tube Coupling, Short MIL-STD-810 Environmental Test Methods MIL-HDBK-831 Preparation of Test Reports 2.1.5 PRI Publica
30、tions Available from Performance Review Institute, 161 Thornhill Road, Warrendale, PA 15086-7527, Tel: 724-772-1616, www.pri-network.org. PD2001 Qualified Product Management Council Procedures for Qualified Products Group PD2101 Aerospace Quality Assurance, Product Standard, Qualification Procedures
31、, Fluid Systems 2.1.6 AWS Publications Available from American Welding Society, 550 NW LeJuene Road, Miami, FL 33126, Tel: 1-800-443-9353, www.aws.org. AWS A5.9 Corrosion-resisting chromium reinforced with stabilized, corrosion-resistant steel, braided wire and having stabilized, corrosion-resistant
32、 alloy end fittings and nuts. End fittings shall be attached to the hose by welding. 3.3.1 End Fitting All standard end fittings shall be a single piece construction from the mating surface to the convoluted tube attachment fitting. If welding is required in construction, welded butt joints shall be
33、 used. Fittings shall conform to applicable requirements in Tables 1 and 2. Standard hose assemblies shall have flared end fitting outlet design to mate with AS4395, flareless end fitting outlet dimensional design per NAS1760 to mate with AS4375, or beam seal end fitting outlet design to mate with A
34、S85421, as applicable. 3.3.1.1 Coupling Nuts When required, AN818, AS21921, or AS4370 type coupling nuts or functional equivalents shall be used. Wire retained coupling nuts, when used, shall have the retaining wire inserted in a clockwise direction when viewed from the open end of the nut. 3.3.1.2
35、Screw Threads All fitting threads shall be Class 3 in accordance with AS8879 (ISO 3161). A thread tolerance increase of 10% after assembly or testing shall not be a cause for rejection. 3.3.2 Hose 3.3.2.1 Inner Tube Construction The inner tube shall be either a Type 1 Helical, or a Type 2 Annular co
36、nvoluted flexible tube design, made from seamless, or butt-welded and redrawn tubing or a Type 3 Helical, or a Type 4 Annular convoluted flexible tube design, made from as-welded strip stock. Tubing shall be uniform in size and quality and free from pitting, excessive die marks, and other defects. T
37、here shall be no inner tube splices on hose assemblies 3 ft in length or less. One splice is allowed for each additional 3 ft increment of hose assembly length. Splices are undesirable but if required, shall be low profile welds in accordance with 3.3.3 and Figure 1. After welding, the convolutes sh
38、all be closed as shown in Figure 1. FIGURE 1 - INNER TUBE SPLICE CONFIGURATION Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS1424 Revision G - 7 - 3.3.2.2 Braid Braid shall be of corrosion-re
39、sistant steel wire braided in such a manner as to meet the requirements of this document. There shall be no splices allowed in the braid wire. 3.3.3 Welding All pressure welds shall be fusion welds per AWS D17.1 Class B and braid attachment weld shall be per Class C. Equivalent or other comparable w
40、elding specifications may be substituted on prior approval by the purchaser. Filler wire, if used, shall be per AMS 5680 (Type 347) or AWS 5.9 Class ER347, for welding stainless steel components, and AMS 5837 (nickel alloy), or AWS A5.14 Class ERNiCrMo-3, for welding nickel alloy to nickel alloy, or
41、 nickel alloy to stainless steel components. If welding nickel alloy 718 to nickel alloy 718, AMS 5832 nickel alloy filler wire shall be used. NOTE: When welding CRES 347 material to any other stainless steel, or nickel alloy, material component, appropriate filler wire material shall be used. Any e
42、xception to this requirement shall require prior approval from the approval activity based on submittal of appropriate design and process documentation. 3.3.4 Heat Treatment If stress relieving of stainless steel alloy is required to meet the corrosion test requirements, the weld joints may be stres
43、s relieved per AMS 2759 as applicable. 3.4 Dimensions and Weights 3.4.1 Dimensions Hose assembly dimensions, except for length, shall be as specified in Table 2. TABLE 2 - HOSE AND FITTING DIMENSIONS Hose Size Rigid Tube OD (Ref) Hose ID Min Hose OD Max Straight Fitting Bore Min Spherical Ball Size
44、for Determining Minimum Hose Assembly ID1Straight Fitting Spherical Ball Size for Determining Minimum Hose Assembly ID1Elbow Fitting 04 .250 .23 .56 .141 .127 .120 05 .312 .28 .63 .197 .177 .167 06 .375 .34 .70 .250 .225 .212 08 .500 .45 .86 .360 .324 .306 10 .625 .57 1.00 .455 .410 .387 12 .750 .70
45、 1.15 .568 .511 .483 16 1.000 .95 1.45 .760 .684 .646 20 1.250 1.20 1.75 .920 .828 .782 1. Minimum specified inside diameter through the hose assembly shall be verified by passing the applicable, or larger spherical ball through the assembly. Copyright SAE International Provided by IHS under license
46、 with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS1424 Revision G - 8 - 3.4.2 Assembly Length and Tolerance Hose assembly length shall be as specified on the applicable procurement standards or drawing. Flareless hose assemblies with NAS1760 type end t
47、erminations shall be measured from gage point to gage point. Assembly length tolerance shall be as follows: a. .062 in for lengths under 10 in b. .125 in for lengths from 10 to 36 in exclusive c. .250 in for lengths from 36 to 50 in exclusive d. 1% for lengths of 50 in and over 3.4.3 Hose Weight Hos
48、e consisting of inner tube and reinforcement shall not exceed the maximum weight noted in Table 3. TABLE 3 - HOSE WEIGHT, BEND RADIUS, AND PRESSURES REQUIREMENT Hose Size Tube Size (Ref) Hose Weight Max lb/in Minimum Centerline Bend Radius Static Minimum Centerline Bend Radius Flexing OperatingPressurepsig NomRoom Temp1Proof Pressure psig Nom Room Temp Burst Pressurepsig MinRoom Temp104 .250 .016 2.00 4.00 2000 3000 8000 05 .312 .018 2.50 5.00 1800 2700 7200 06 .375 .020 3.00 6.00 1600 2400 6400 08 .500 .028 4.00 8.00 1400 2100 5600 10 .625 .038 4.50
