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/MA4510 AEROSPACE STANDARD MA4510 Issued 1996-11 Reaffirmed 2015-08 Fittings, Weld
5、, Fluid Connection, 35 000 kPa, Metric RATIONALE MA4510 has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE:1.1 Scope:This SAE Metric Aerospace Standard (AS) establishes the requirements for weld fluid connection fittings and rings to be orbital arc welded to tubing for use
6、in metric aircraft fluid systems at a maximum operating pressure of 35,000 kPa.1.2 Classification:Fittings and rings shall be furnished in the types and styles designated by the applicable MA or other engineering part standard drawings. This specification is intended to serve as a procurement specif
7、ication for the fittings described herein. The requirements for weld to separable fittings are given in slash specifications such as MA4510/1.2. REFERENCES:2.1 Applicable Documents:The following publications form a part of this document to the extent specified herein. The latest issue of SAE publica
8、tions 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 text of this document takes precedence. Nothing in this document, however, superse
9、des applicable laws and regulations unless a specific exemption has been obtained.SAE INTERNATIONAL MA4510 Page 2 of 16 2.1.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AMS 2759 Heat Treatment, Steel Parts, General RequirementsAMS 4928 Titanium Alloy Bars
10、 and Forgings, 6Al-4V, Annealed, 120,000 PSI (827 MPa) YieldAMS 4945 Titanium Alloy Tubing, Seamless, Hydraulic, 3Al 2.5V, Texture Controlled, 105 ksi (724 MPa) Yield Strength, Cold Worked, Stress RelievedAMS 5561 Tubing, Welded and Drawn, 9.0Mn 20Cr 0.28N High Pressure HydraulicAMS 5656 Steel, Corr
11、osion Resistant, Bars, Wire, Forgings, Extrusions, and Rings 9.0 Mn 20Cr 6.5Ni 0.27N Solution Heat TreatedAMS 5659 Bars, Wire, Forgings, Rings and Extrusions, 15Cr 4.5Ni 0.30 (Cb + Ta) 3.5Cu, Consumable Electrode Melted, Solution Heat Treated, Precipitation HardenableAS478 Identification Marking Met
12、hodsARP603 Impulse Testing of Hydraulic Hose Tubing and Fittings AssembliesARP1185 Flexure Testing of Hydraulic Tubing Joints and FittingsAS1241 Fire Resistant Phosphate Ester Hydraulic Fluid for AircraftMA2023 Wrench Pad, Fluid Fitting, Alternate Machined Shapes of, Design Standard forMA2094 Test M
13、ethods for Tube-Fitting Assemblies, Metric (ISO 10583)MA2307 Welded Girth, Design Standard, MetricMA4510/1 Fittings, Weld to 24 Cone Flareless, Fluid ConnectionARP4784 Performance and Evaluation Criteria, Surface Defects, Requirements for2.1.2 U.S. Government Publications: Available from DODSSP, Sub
14、scription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.MIL-H-5606 Hydraulic Fluid, Petroleum Base, Aircraft, Missile and OrdnanceMIL-H-6083 Hydraulic Fluid, Petroleum Base, For Preservation and OperationMIL-H-46170 Hydraulic Fluid, Rust Inhibited, Fire Resistant Synthe
15、tic Hydrocarbon BaseMIL-H-83282 Hydraulic Fluid, Fire Resistant, Synthetic Hydrocarbon Base, Aircraft, Metric, Nato Code Number H-5372.1.3 ANSI Publications: Available from ANSI, 11 West 42nd Street, New York, NY 10036-8002.ANSI/ASME B46.1 Surface Texture (Surface Roughness, Waviness, and Lay)ANSI/A
16、SQC Z1.4 Sampling Procedures and Tables for Inspection by AttributesANSI Z540-1 Calibration Laboratories in Measuring Test Equipment, General Requirements2.1.4 ISO Publications: Available from Internal Organization for Standardization, Case PostAle 56, CH-1211, Genve 20, Switzerland.ISO 10012-1 Qual
17、ity Assurance Requirements for Measuring EquipmentSAE INTERNATIONAL MA4510 Page 3 of 16 3. TECHNICAL REQUIREMENTS:3.1 Material:Fittings and rings shall be fabricated of materials listed in Table 1 and in compliance with requirements in this specification or as specified on the applicable part standa
18、rd drawing.TABLE 1 - Materials3.1.1 Heat Treatment: Unless otherwise specified on the applicable drawings, the type 15-5ph corrosion resistant steel material shall be heat treated to condition H-1075 per AMS 2759/3, before or after machining.3.2 Design and Fabrication:The design and fabrication of t
19、he fittings and rings shall be in accordance with the applicable drawings. The fitting ends shall be in accordance with MA2307 as applicable. Dimensional requirements are applicable after heat treatment and protective finishing. The center body section of shape fittings machined from bar or oversize
20、d forgings shall conform to MA2023.3.2.1 Shape and Form Restrictions: Abrupt reductions of section shall be avoided. Small external sections adjoining relatively heavy body sections shall transition into the heavier sections by means of ample fillets.3.2.2 Passages:3.2.2.1 Machining Offset: For stra
21、ight fittings where the fluid passage is machined from each end, the offset between the machined holes at the meeting point of the holes shall not exceed 0.4. It shall be possible to pass through the fluid passage a ball whose diameter is 0.5 less than the minimum diameter specified for the passage.
22、 This does not mean that the fluid passage may be smaller than that required by the detail standard part drawings.SAE INTERNATIONAL MA4510 Page 4 of 16 3.2.2.2 Cross Section at Fluid Path Junction: For shape fittings, the cross-sectional area at the junction of fluid passages shall be such that it s
23、hall be possible to pass through the fitting from end to end, a ball whose diameter is not less than .7 times the minimum diameter specified for the smaller passage.3.3 Finish:3.3.1 Corrosion Resistant Steel: Corrosion resistant steel fittings and rings have no finish.3.3.2 Titanium Alloy Rings and
24、Fittings: Titanium alloy rings shall have no finish. Titanium alloy fittings shall have no finish on the weld end surfaces within a distance from the weld end of one half the nominal tube OD minimum.3.4 Cleaning:Parts that are to be cleaned only to standard industry practice for fittings shall have
25、no code letter after the part number and shall be cleaned per 5.1. These parts may then have special cleaning as specified by the user prior to welding.3.5 Identification of Product:All fittings and rings shall be marked in accordance with the following instructions. The marking shall be applied per
26、 AS478 as specified on the applicable drawing in a location not detrimental to the performance of the fitting and not detrimental to the corrosion protection of the fitting. When items cannot be physically marked because of lack of space or because marking would have a deleterious effect, the packag
27、e shall provide the identification per 5.2.3.5.1 Manufacturers Identification: Unless otherwise specified, all fittings shall be marked with the manufacturers name, CAGE code or trademark, and with the letters MA. Rings shall not be marked.3.5.2 Material Identification: Fittings shall be marked with
28、 the material code letter as shown in Table 1. Forged shapes such as elbows or tees shall also be marked with the forging manufacturers trademark or a code identification letter or number.3.5.3 Marking for Part Number and Size: A numerical size code equivalent to the nominal tube size in 1 mm increm
29、ents is optional. All fittings and sleeves larger than 10 fitting size code shall be marked with the basic part number, exclusive of size. Fitting assemblies with assembled nuts shall be marked as above on the fitting body, but assembled nuts that have their own part number identification are accept
30、able. Rings shall not be marked, but the package shall be identified per 5.2.SAE INTERNATIONAL MA4510 Page 5 of 16 3.6 Performance:The fittings and rings, when assembled to tubing specified in Tables 2 or 3 and tested in accordance with applicable procedures specified in Section 4, shall meet the fo
31、llowing performance requirements. Weld fittings with separable fitting ends shall have had their separable fitting connection tested per the applicable performance specification for that type of connection at the applicable operating pressure but the separable fitting connection shall not fail the p
32、erformance requirements of this specification when tested at the applicable operating pressure.TABLE 2 - Tubing Wall Thickness, Operating Pressure, and Flexure Test StressFor Weld Fittings with Type 21-6-9 Corrosion Resistant Steel TubingSAE INTERNATIONAL MA4510 Page 6 of 16 TABLE 3 - Tubing Wall Th
33、ickness, Operating Pressure, and Flexure Test Stressfor Weld Fittings with Type 3.0A1 2.5V Titanium Alloy TubingSAE INTERNATIONAL MA4510 Page 7 of 16 3.6.1 Proof Pressure: The test assembly shall withstand pressure equal to two times the operating pressure of the system for 3 min without leakage suf
34、ficient to form a drop or evidence of permanent deformation when tested per 4.4.3.3.6.2 Burst Pressure: The test assembly shall not rupture or show evidence of leakage at any pressure up to and including four times the nominal operating pressure of the system when tested per 4.4.4. Tubing expansion
35、is permissible.3.6.3 Impulse: The test assembly when assembled shall withstand 200 000 impulse pressure cycles without leakage from the fitting or fitting to tube junction when tested per 4.4.5.3.6.4 Flexure: Flexure strength may be demonstrated by endurance or S/N (stress/number of cycles) testing
36、per 4.4.6. Weld rings shall be tested by the sample beam test method (see 4.4.6.3).3.6.4.1 Endurance Flexure: The test assembly when assembled at maximum torque shall withstand 10 000 000 flexure cycles at the stress levels listed in Tables 2 or 3 without leakage from the fitting or fitting to tube
37、junction when tested at room temperature per 4.4.6.3.6.4.2 S/N Flexure: A set of eight test assemblies shall be tested at room temperature per ARP1185. Two samples shall withstand 10 000 000 flexure cycles at the stress levels listed in Tables 2 or 3 without leakage from the fitting or fitting to tu
38、be junction. The remaining samples shall be tested at higher stresses to failure and the results presented in the form of a S/N graph.3.7 Workmanship:Machined surfaces of fittings and rings shall be as specified on the applicable drawings. Unmachined surfaces, such as forged surfaces, shall be free
39、from blisters, fins, folds, seams, laps, cracks, segregations, spongy areas, or other defects as specified in ARP4784. Surface defects may be explored by suitable etching and if they can be removed so that they do not appear on re-etching and the required section thickness can be maintained, they sh
40、all not be cause for rejection. The surface texture of unmachined surfaces, except forging parting lines, shall be 3.2 m Ra per ANSI/ASME B46.1. The surface texture of forging parting planes shall be 6.4 m Ra per ANSI/ASME B46.1.4. QUALITY ASSURANCE PROVISIONS:4.1 Responsibility for Inspection:Unles
41、s otherwise specified in the contract or purchase order, the supplier is responsible for performing the inspection and test requirements of the quality conformance inspection of 4.5. Except as otherwise specified, the supplier may utilize his/her own facilities or any commercial laboratory acceptabl
42、e to the purchaser for the performance of the inspection and test requirement. The purchaser reserves the right to perform any of the inspections and tests set forth in this specification, whenever such inspections and tests are deemed necessary to assure that supplies and services conform to prescr
43、ibed requirements.SAE INTERNATIONAL MA4510 Page 8 of 16 4.2 Inspection Lot:A lot shall consist of parts that are identified by one unique part number fabricated from one mill heat of material; or, if an assembly, each component part shall be from one mill heat of material, produced by the same machi
44、ning operation at approximately the same time in one continuous production run. Splits of one production run into two parallel runs that may be machined at different times, constitutes splitting the lot into two distinct lots. Processes such as heat treating, plating, baking, and dry lubricant appli
45、cation shall be performed at essentially the same time under the same conditions; processes not meeting the condition shall require the assigning of a distinguishing lot number. Parts which consist of assemblies, i.e., fittings with retained nuts, shall be identified with a separate number which all
46、ows traceability of each part. Retaining wires need not be identified by heat lot.4.2.1 Record Maintenance: The supplier shall maintain a record of inspections applied to each lot.4.2.2 Material Certification: Records of the chemical composition analysis and mechanical property tests showing conform
47、ance to the material requirements of this specification shall be available to the procuring activity upon request for each lot of fittings.4.2.3 Heat Treating Certification: Records of heat treating performed on the materials after purchasing showing conformance to the applicable heat treating speci
48、fication shall be available to the procuring activity upon request for each lot of fittings.4.3 Classification of Testing and Inspection:The testing and inspection of the fittings shall be classified as follows:4.3.1 Verification of Performance Requirements: It is intended that fittings in accordanc
49、e with this specification shall be designed and fabricated to meet the performance requirements of Section 3. The user may verify the requirements by his/her own testing or inspection, accept equivalent test data available in the industry, or perform verification analytical analysis to verify design and performance compliance, or a combination thereof.4.3.2 Quality Conformance Inspection: All parts supplied in accordance with this specif
