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    SAE AS 1576E-2016 Fittings Welded Hydraulic Titanium Corrosion Resistant Steel and Nickel 3000 psi Hydraulic.pdf

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    SAE AS 1576E-2016 Fittings Welded Hydraulic Titanium Corrosion Resistant Steel and Nickel 3000 psi Hydraulic.pdf

    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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2016 SAE InternationalAll rights reserved. No part of this publi

    3、cation 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: +1 724-776-4970 (out

    4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AS1576EAEROSPACESTANDARDAS1576 REV. EIssued 1980-02Reaffirmed 2007-08Revised 2016-07Supersedi

    5、ng AS1576DFittings, Welded, Hydraulic, Titanium,Corrosion Resistant Steel and Nickel, 3000 psi HydraulicRATIONALEThis document was revised to add AMS4945, AMS4946 with min CSR rating for titanium tubing material specification, and removed AS5620.1. SCOPEThis document defines the requirements for wel

    6、d fittings and machine weldments using an orbiting welding head suitable for use on cold worked 3Al-2.5V titanium, 21Cr-6Ni-9Mn CRES, and 718 nickel alloy tubing. Fitting standards covered by this specification include non-separable welded elbow, tee, and reducer fittings, and reconnectable 24 degre

    7、e cone fittings such as sleeves and unions.2. REFERENCES2.1 Applicable DocumentsThe following publications form a part 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 dat

    8、e 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 laws and regulations unless a specific exemption has been obtained.2.1.1 SAE Publicati

    9、onsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AMS2759/3 Heat Treatment Precipitation-Hardening Corrosion-Resistant and Maraging Steel PartsAMS4928 Titanium Alloy Bars, Wi

    10、re, Forgings, Rings, and Drawn Shapes, 6Al - 4V, AnnealedAMS4945 Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Controlled Contractile Strain Ratio Cold Worked, Stress RelievedAMS4946 Titanium Alloy Tubing, Seamless, Hydraulic 3Al - 2.5V, Texture Controlled Cold Worked, Stress RelievedSAE IN

    11、TERNATIONAL AS1576E Page 2 of 25AMS5561 Steel, Corrosion and Heat-Resistant, Welded and Drawn or Seamless and Drawn Tubing, 9.0Mn - 20Cr -6.5Ni - 0.28N, High-Pressure HydraulicAMS5656 Steel, Corrosion Resistant, Bars, Wire, Forgings, Extrusions, and Rings, 9.0Mn - 20Cr - 6.5Ni - 0.27N, Solution Heat

    12、 TreatedAMS5659 Steel, Corrosion-Resistant, Bars, Wire, Forgings, Rings, and Extrusions, 15Cr - 4.5Ni - 0.30Cb (Nb) - 3.5CuAMS5589 Nickel Alloy, Corrosion and Heat-Resistant, Seamless Tubing 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.50Al - 18Fe Consumable Electrode Remelted or Vacuum Induction

    13、 Melted 1775 F (968 C) Solution Heat TreatedAMS5662 Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.50AI - 18Fe Consumable Electrode or Vacuum Induction Melted 1775 qF (968 q C) Solution Heat Treated, Precipitation-HardenableAMS56

    14、63 Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) - 0.90Ti - 0.50Al - 18Fe Consumable Electrode or Vacuum Induction Melted 1775 qF (968 q C) Solution and Precipitation Heat TreatedAMS-H-6875 Heat Treatment of Steel Raw MaterialsAMS-T-6845 Tub

    15、ing, Steel, Corrosion-Resistant (S30400), Aerospace Vehicle Hydraulic System 1/8 Hard ConditionAS478 Identification Marking MethodsAS603 Impulse Testing of Hydraulic Hose, Tubing, and Fitting AssembliesARP1185 Flexure Testing of Hydraulic Tubing Joints and FittingsARP1258 Qualification of Hydraulic

    16、Tube Joints to Specified Flexure Fatigue RequirementsAS1577 Tube End, Weld, Design StandardAS1579 Fitting End, Integral Weld, Lip, Design StandardAS1580 Ring, Weld, 3000 psi, TitaniumAS1581 Fitting, Sleeve, Flareless Acorn to Integral Weld Ring, 3000 psiAS1582 Fitting, Adapter, External Thread Flare

    17、less to Integral Weld Ring, 3000 psiAS1583 Fitting, Tee, Integral Weld Ring, 3000 psiAS1584 Fitting, Elbow, 90 degree, Integral Weld Ring, 3000 psiAS1585 Fitting, Reducer, Integral Weld Ring, 3000 psiAS1893 Ring, Weld, 3000 psi, CRESAS2094 Test Methods for Tube-Fitting AssembliesAS4693 Union, Tube E

    18、nd, External Thread to Weld, Short FlarelessAS4695 Sleeve, Tube End, Acorn to Weld, Short FlarelessAS4696 Fitting, Sleeve, Flareless, Nonreducer and Reducer, Short Acorn to Weld Tube EndSAE INTERNATIONAL AS1576E Page 3 of 25ARP4784 Definitions and Limits, Metal Material Defects and Surface and Edge

    19、Features, Fluid Couplings, Fittings and Hose EndsAS5233 Fitting Assembly, Cap, FlarelessAS5234 Nut, Coupling FlarelessAS5863 Fitting End, 24 Cone, Flareless, Fluid Connection, Design StandardAS8879 Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor DiameterARP9013 Statisti

    20、cal Product Acceptance Requirements AS18280 Fittings, 24 Cone Flareless, Fluid Connection, 3000 psi2.1.2 ANSI PublicationsCopies of these documents are available online at http:/webstore.ansi.org.ASME B46.1 Surface Texture, Surface Roughness, Waviness, and Lay2.2 ASQ PublicationsAvailable from Ameri

    21、can Society for Quality, 600 North Plankinton Avenue, Milwaukee, WI 53203, Tel: 800-248-1946 (United States or Canada), 001-800-514-1564 (Mexico), or +1-414-272-8575 (all other locations), www.asq.org.ASQ Z1.4 Sampling Procedures and Tables for Inspection by Attributes2.3 ASTM PublicationsAvailable

    22、from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.orgASTM E1417 Practice for Liquid Penetrant ExaminationASTM E1447 Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by the Inert Gas Fusion Thermal Con

    23、ductivity MethodASTM F945 Standard Test Method for Stress-Corrosion of Titanium Alloys by Aircraft Engine Cleaning MaterialsASTM F2111 Standard Practice for Measuring Intergranular Attack or End Grain Pitting on Metals Caused by Aircraft Chemical Processes2.3.1 NAS StandardsAvailable from Aerospace

    24、Industries Association, 1000 Wilson Boulevard, Suite 1700, Arlington, VA 22209-3928, Tel: 703-358-1000, www.aia-aerospace.org.NAS1760 Fitting End, Fluid, Acorn, Standard Dimensions for2.3.2 ISO PublicationsAvailable from International Organization for Standardization, ISO Central Secretariat, 1, ch.

    25、 de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, Tel: +41 22 749 01 11, www.iso.orgISO 17025 General Requirements for the Competence of Calibration and Testing LaboratoriesSAE INTERNATIONAL AS1576E Page 4 of 252.3.3 AWS PublicationsAvailable from American Welding Society, 8669 NW 36 Street

    26、, #130, Miami, FL 33166-6672, Tel: 1-800-443-9353 or 305-443-9353, www.aws.org.AWS A3.0 Welding Terms and Definitions2.3.4 PRI-NADCAP PublicationsAvailable from Performance Review Institute, 161 Thorn Hill Road, Warrendale, PA 15086-7527, Tel: 724-772-1616, www.pri-network.org. The online QPL is ava

    27、ilable at www.eAuditN. Additional information regarding the QPL Program is located at www.pri- Nadcap Audit Criteria for Fluid Systems Component Manufacturers AC7112/2 Nadcap Audit Criteria for Fittings and other Machined Components PD2001 Manufacturer Request for Product Approval & Qualification Pr

    28、ocessPD2101 Aerospace Quality Assurance, Product Standards, Qualification Procedure, Fluid Distribution SystemsPRI-QPL-AS1576 Fittings, Welded, Hydraulic, Titanium, Corrosion Resistant Steel and Nickel, 3000 psi Hydraulic 2.3.5 U.S. Government PublicationsCopies of these documents are available onli

    29、ne at http:/quicksearch.dla.mil.O-H-795 Hydrofluoric Acid, Technical2.4 DefinitionsWATER-BREAK-FREE SURFACE - A surface which maintains a continuous water film for a period of at least 30 secondsafter having been spray or immersion rinsed in clean water at a temperature below 100 F.3. REQUIREMENTS3.

    30、1 Product QualificationFittings, nuts, and sleeves furnished under this specification shall be representative of products which have been qualified to the requirements of this document. All products shall conform to the requirements of this procurement specification and shall be approved in accordan

    31、ce with the requirements of PD2001 and PD2101 for listing in the Performance Review Institute (PRI) Qualified Products List (QPL) PRI-QPL-AS1576.3.2 Manufacturer QualificationA manufacturer producing a product in conformance to this procurement specification shall be accredited in accordance with th

    32、e requirements of PD2101, and AC7112 and shall be listed in a Performance Review Institute (PRI) Qualified Manufacturers List (QML).3.2.1 Accreditation of Special ProcessesFabrication of fitting seal areas to AC7112/2 requires Nadcap accreditation by the manufacturer and his subtier. Initial approva

    33、l of a subtier without Nadcap Accreditation requires passing requirements of the periodic control test of titanium, 15-5PH and nickel sample fittings per 4.7.4 prior to supplying parts for procurement. For final approval of the subtier, this test has to be repeated three times following fabrication

    34、of 2500, 5000, and 10000 fittings. Following fabrication of 10000 fittings the subtier shall maintain the same test-period criteria as the manufacturer. SAE INTERNATIONAL AS1576E Page 5 of 25NOTES 1. This requirement shall be specified for each different subtier that a manufacturer utilizes under th

    35、eir fabrication system. Records shall be maintained showing compliance with these requirements for each sub-tier utilized by the manufacturer.2. Seal area of fittings is defined as the contact area between 24 degree union cone and the rounded sleeve or acorn which establishes a seal when the assembl

    36、y is tightened. This pertains to fittings having AS33514, AS33515, AS4375, AS4377, AS5863, or AS5684 fitting ends.3.3 Materials3.3.1 Fitting MaterialsFittings and other parts shall be made of materials listed in Table 1.3.3.2 Fitting Forgings3.3.2.1 Surface DefectsForged fittings shall be free from

    37、cracks, laps, seams, and other defects.NOTE: Surface defects may be removed as long as wall thickness requirements are met and as long as defects do not reappear after etching and in penetrant inspection.3.3.2.2 Titanium ForgingsTitanium forgings shall exhibit an equiaxed microstructure. Oxide or ot

    38、her gas contaminated surface scale shall be removed by pickling.Table 1 - MaterialsType of Part MaterialMaterial Code SpecificationStraight and Shape FittingsCorrosion Resistant Steel VAMS5659 /1/(15-5PH)Weld RingCorrosion Resistant Steel -AMS5656(21Cr-6Ni-9Mn)Straight and Shape Fittings and Weld Ri

    39、ng Titanium TAMS4928(Ti-6Al-4V)Straight Fittings Nickel YAMS5662 /2/(Alloy 718, Solution Heat Treated)NOTES:/1/ Heat treat to condition H1075 in accordance with AMS2759/3 or AMS-H-6875, as required by the part standard. Verify heat treat. /2/ Precipitation heat treated per AMS5663 after machining, u

    40、nless otherwise specified in the procurement order.3.4 Design and ConstructionFittings are defined per the applicable part standards.Tubing shall be to the requirements per AMS4946, AMS4945 with Contractile Strain Ratio (CSR) in accordance with AMS4946, AMS5561, or AMS5589, as applicable. Tubing end

    41、s shall be prepared for welding per AS1577. Shape fittings such as elbows, tees, or crosses shall be machined from forgings or bar stock. Straight fittings shall be machined from bar stock.SAE INTERNATIONAL AS1576E Page 6 of 253.4.1 Passages3.4.1.1 Drill OffsetOn straight fittings where the fluid pa

    42、ssage is drilled from each end, the offset between the drilled holes at the meeting point of the drills shall not exceed 0.015 inch.3.4.1.2 Cross SectionOn shape fittings, the cross sectional area at the junction of the fluid passages shall not be smaller than the cross sectional area of the smaller

    43、 passage.3.5 CleaningParts that are to be cleaned to standard industry practice for fittings shall have no suffix code letter in the part number and shall be cleaned per 5.1.1. These parts may then have special cleaning as specified by the user prior to welding. Parts that are to be alkaline cleaned

    44、 as suitable for welding shall have the suffix letter “C” in the part number and shall be cleaned per 5.1.2. Titanium alloy parts that are to be cleaned and nitric-hydrofluoric acid etched as suitable for welding shall have the suffix letter “E” in the part number and shall be cleaned and etched per

    45、 5.1.3.NOTE: Safety - Hazardous Materials: While the materials, methods, applications, and processes described or referenced in this specification may involve use of hazardous materials, this specification does not address the hazards which may be involved in such use. Contact local officials if you

    46、 have questions regarding use of these materials.3.6 Identification of ProductAll fittings, nuts, and sleeves shall be marked in accordance with the following instructions. The marking shall be applied per AS478 as specified on the applicable drawing in a location not detrimental to the performance

    47、of the fitting and not detrimental to the corrosion protection of the fitting. For weld rings, and for items that cannot be physically marked becauseof lack of space or because marking would have a deleterious effect, the package shall provide the identification per 5.2.3.6.1 Manufacturers Identific

    48、ationUnless otherwise specified, all fittings and sleeves shall be marked with the manufacturers name, CAGE code or trademark,and with the letters AS.3.6.2 Material IdentificationFittings and sleeves shall be marked with the material code letter as shown in Table 1. Forged shapes such as elbows or t

    49、ees, shall also be marked with the forging manufacturers trademark or a code identification letter or number.3.6.3 Marking for Part Number and SizeA numerical size code equivalent to the nominal tube size in 0.062 inch increments is optional. All fittings and sleeves larger than 06 fitting size code shall be marked with the basic part number, exclusive of size. Fi


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