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 2013 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/J2551/2_201302 SURFACE VEHICLE RECOMMENDED PRACTICE J2551-2 FEB2013 Issued 2013-0
5、2 Superseding J2551 MAY2010 Recommended Practices for Fluid Conductor Carbon, Alloy and High Strength Low Alloy Steel Tubing Applications-Part 2: General Specifications and Performance Requirements RATIONALE The user community has expressed a need for additional documented knowledge associated with
6、the design, expected performance and procurement of metallic fluid conductors. This revision to SAE J2551 reorganizes the document into three parts, design and fabrication, general specifications and performance requirements and procurement. The following changes and additional information is intend
7、ed to bring this document up to date with current industry technology and provide comprehensive application and procurement information requested by the user community. In addition, the document title has been revised to include steel tube materials that have been recently added as SAE standards. FO
8、REWORD The May2010 edition of SAE J2551 was published as a single document covering the design and fabrication of carbon, alloy and high strength low allow tube assemblies. SAE J2551 has been organized into three sections as follows: 1. SAE J2551-1 - Recommended Practices for Fluid Conductor Carbon,
9、 Alloy and High Strength Low Alloy Steel Tubing Applications-Part 1: Design and Fabrication 2. SAE J2551-2 - Recommended Practices for Fluid Conductor Carbon, Alloy and High Strength Low Alloy Steel Tubing Applications-Part 2: General Specifications and Performance Requirements 3. SAE J2551-3 - Reco
10、mmended Practices for Fluid Conductor Carbon, Alloy and High Strength Low Alloy Steel Tubing Applications-Part 3: Procurement This SAE Recommended Practice is intended as a guide to consider when defining the general specification and performance requirements of carbon, alloy and high strength low a
11、lloy steel tube assemblies for fluid power and general applications. It is subject to change to keep pace with experience and technical advances. Experienced designers and users skilled in achieving proper results, as well as the less experienced may use this outline as a list of recommendations to
12、consider when defining general specifications and performance requirements. Fluid power systems are complex and require extensive knowledge of both the system requirements and the various types of tube. Therefore, all-inclusive, detailed, step-by-step instructions are not practical and are beyond th
13、e scope of this document. Less experienced designers and users who need more information may consult specialists such as experienced tube designers and fabricators. This guide may improve the communication process. SAE J2551-2 Issued FEB2013 Page 2 of 16 Following this document is highly recommended
14、 by the participating SAE/ISO organizations and their members. Adherence to these guidelines may assure the users they will create tube assemblies that can be efficiently manufactured, conveniently packaged/shipped, proficiently installed on their equipment, will perform adequately and safer to esta
15、blished industry standards and they will be using common practices and components that may be easily serviced anywhere globally. Safety Considerations - These documents include considerations to facilitate safer conditions when these products are in use; note these carefully during all phases of des
16、ign and use of the tube assemblies. Improper selection, fabrication, installation, or maintenance of tube assemblies for fluid-power systems may result in serious personal injury or property damage. Adherence to these recommended practices could reduce the likelihood of component or system failure,
17、thereby reducing the risk of injury or damage. The application of hydraulic tubing with fluids under pressure exposes users to risk due to mechanical or injection hazards and the environment to contamination from leakage. Users are reminded to consider the proper selection of components, fabrication
18、 of tubes, installation and maintenance procedures to address this potential risk. TABLE OF CONTENTS 1. SCOPE 3 1.1 Purpose . 3 1.2 Field of Application 3 2. REFERENCES 3 2.1 Applicable Documents 3 2.2 Related Publications 5 3. DEFINITIONS . 7 4. GENERAL SPECIFICATIONS 7 4.1 Tube Construction . 7 4.
19、2 Dimensional Requirements . 7 4.3 Workmanship 8 4.4 Quality Conformance and Assurance . 8 4.5 Storage and Identification 10 5. PRODUCT TYPES AND PERFORMANCE REQUIREMENTS 10 5.1 Product Types . 10 5.2 Hydraulic Connections 11 5.3 Coatings and Corrosion Resistance 14 5.4 Cleanliness 14 5.5 Performanc
20、e Evaluation and Testing 15 6. NOTES 16 6.1 Marginal Indicia . 16 TABLE A 9 TABLE B - MINIMUM PERFORMANCE TEST REQUIREMENTS . 15 SAE J2551-2 Issued FEB2013 Page 3 of 16 1. SCOPE 1.1 Purpose These recommended practices provide recommendations for general specifications and performance requirements of
21、 carbon, alloy and high strength low alloy steel tube assemblies for fluid power applications utilizing commonly available manufacturing methods and general guidelines for tube selection and application. 1.2 Field of Application These recommended practices are intended for general application and hy
22、draulic systems on industrial equipment and commercial products. Aircraft and Aerospace applications were not considered during the preparation of this document. Since many factors influence the pressure at which a hydraulic system will or will not perform satisfactorily, these recommended practices
23、 should not be construed as guaranteed minimums. For any application, it is recommended that sufficient testing be conducted and reviewed by both the user and supplier to ensure that required performance levels are met. For use of these recommended practices and connectors in conditions outside the
24、pressure and temperature of limits specified, the fabricator must be consulted. Both metric and inch tubing should be considered to accommodate hydraulic system design requirements. In the past, these requirements have been met predominantly with inch tubing; for new designs, metric tubing should be
25、 considered. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Dri
26、ve, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J426 Liquid Penetrant Test Methods SAE J512 Automotive Tube Fittings SAE J514 Hydraulic Tube Fittings SAE J518 Hydraulic Flanged Tube, Pipe, and Hose Connections, Four-Bolt Split
27、Flange Type SAE J533 Flares for Tubing SAE J1065 Nominal Reference Working Pressures for Steel Hydraulic Tubing SAE J1231 Formed Tube Ends for Hose Connections and Hose Fittings SAE J1273 Recommended Practices for Hydraulic Hose Assemblies SAE J1453-1 Specification for O-Ring Face Seal Connectors: P
28、art 1Tube Connection Details and Common Requirements for Performance and Tests SAE J1453-2 Specification for O-Ring Face Seal Connectors: Part 2Requirements, Dimensions, and Tests for Steel Unions, Bulkheads, Swivels, Braze Sleeves, Caps, and Connectors with ISO 6149-2 Metric Stud Ends SAE J2551-2 I
29、ssued FEB2013 Page 4 of 16 SAE J1453-3 Specification for O-Ring Face Seal Connectors: Part 3Requirements, Dimensions, and Tests for Steel Unions, Bulkheads, Swivels, Braze Sleeves, Connectors, Caps, and Connectors with SAE J1926-2 Inch Stud Ends SAE J1475 Hydraulic Hose Fittings for Marine Applicati
30、ons SAE J2044 Quick Connect Coupling Specification for Liquid Fuel and Vapor/Emissions Systems SAE J2551-1 Recommended Practices for Fluid Conductor Carbon, Alloy and High Strength Low Alloy Steel Tubing Applications-Part 1: Design and Fabrication SAE J2552-3 Recommended Practices for Fluid Conducto
31、r Carbon, Alloy and High Strength Low Alloy Steel Tubing Applications-Part 3: Procurement SAE J2593 Information Report for the Installation of Fluid Conductors and Connectors SAE J2613 Welded Flash Controlled, High Strength Low Alloy Steel Hydraulic Tubing, Sub-Critically Annealed for Bending, Doubl
32、e Flaring, and Bending SAE J2614 Welded and Cold-Drawn, High Strength Low Alloy Steel Hydraulic Tubing, Sub-Critically Annealed for Bending and Flaring SAE J2832 Welded Flash Controlled, High Strength (690 MPa Tensile Strength) Low Alloy Steel Hydraulic Tubing, Stress Relieved Annealed for Bending a
33、nd Double Flaring SAE J2833 Welded and Cold-Drawn, High Strength (690 MPa Tensile Strength) Low Alloy Steel Hydraulic Tubing, Stress Relieved Annealed for Bending and Flaring 2.1.2 ISO Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Te
34、l: 212-642-4900, www.ansi.org. ISO 3304 Plain end seamless precision steel tubes - Technical conditions for delivery ISO 3305 Plain end welded precision steel tubes - Technical conditions for delivery ISO 4406 Hydraulic fluid power - Fluids - Method for coding the level of contamination by solid par
35、ticles ISO 6162-1 Hydraulic fluid power - Flange connectors with split or one-piece flange clamps and metric or inch screws - Part 1: Flange connectors for use at pressures of 3.5 MPa (35 Bar) to 35 MPa (350 Bar), DN 13 to DN127 ISO 6162-2 Hydraulic fluid power - Flange connectors with split or one-
36、piece flange clamps and metric or inch screws - Part 2: Flange connectors for use at pressures of 35 MPa (350 Bar) to 40 MPA (400 Bar), DN 13 to DN 51 ISO 8434-1 Metallic tube connections for fluid power and general use - Part 1: 24 Compression connectors ISO 8434-2 Metallic tube connections for flu
37、id power and general use - Part 2: 37 Flared connectors ISO 8434-3 Metallic tube connections for fluid power and general use - Part 3: O-ring face seal connectors ISO 8434-4 Metallic tube connections for fluid power and general use - Part 4: 24 Cone connectors with o-ring weld-on nipples ISO 9227 Co
38、rrosion tests in artificial atmospheres - Salt spray testing ISO 10763 Plain-end, seamless and welded steel tubes - Dimensions and nominal working pressures ISO 17635 Non-destructive testing of welds - General rules for metallic materials SAE J2551-2 Issued FEB2013 Page 5 of 16 ISO 19879 Metallic tu
39、be connections for fluid power and general use - Test methods for hydraulic fluid power connections 2.1.3 EN Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. EN 10305-2 Steel tubes for precision applicat
40、ions - Technical delivery conditions - Part 2: Welded cold drawn tubes EN 10305-4 Steel tubes for precision applications - Technical delivery conditions - Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems 2.1.4 ASTM Publications Available from ASTM International, 100 Barr H
41、arbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus ASTM D2247 Standard Practice for Testing Water Resistance of Coatings in 100% Relative Humidity 2.1.5 American Welding Society Publicatio
42、ns Available from American Welding Society, 550 N.W. LeJeune Road, Miami, Florida 33126, Tel: 800-443-9353, www.asw.org. AWS D1.1/D1.1M Structural Welding Code - Steel 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this S
43、AE Technical Report. 2.2.1 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. SAE J246 Spherical and Flanged Sleeve (Compression) Tube Fittings SAE J343 Tests and
44、Test Procedures for SAE 100R Series Hydraulic Hose and Hose Assemblies SAE J356 Welded Flash-Controlled Low-Carbon Steel Tubing Normalized for Bending, Double Flaring, and Beading SAE J515 Specification for Hydraulic O-Ring Materials, Properties, and Sizes for Metric and Inch Stud Ends, Face Seal Fi
45、tting and Four-Screw Flange Tube Connections SAE J524 Seamless Low-Carbon Steel Tubing Annealed for Bending and Flaring SAE J525 Welded and Cold Drawn Low-Carbon Steel Tubing Annealed for Bending and Flaring SAE J526 Welded Low-Carbon Steel Tubing SAE J527 Brazed Double Wall Low-Carbon Steel Tubing
46、SAE J1273 Recommended Practices for Hydraulic Hose Assemblies SAE J1290 Automotive Hydraulic Brake System - Metric Tube Connections SAE J2551-2 Issued FEB2013 Page 6 of 16 SAE J1677 Tests and Procedures for Steel and Copper Nickel Tubing SAE J1926-1 Connections for General Use and Fluid Power - Port
47、s and Stud Ends with ASME B1.1 Threads and O-Ring Sealing - Part 1: Threaded Port with O-Ring Seal in Truncated Housing SAE J1926-2 Connections for General Use and Fluid Power - Ports and Stud Ends with ASME B1.1 Threads and O-Ring Sealing - Part 2: Heavy-Duty (S Series) Stud Ends SAE J1926-3 Connec
48、tions for General Use and Fluid Power - Ports and Stud Ends with ASME B1.1 Threads and O-Ring Sealing - Part 3: Light-Duty (L Series) Stud Ends SAE J2094 Vehicle and Control Modifications for Drivers with Physical Disabilities Terminology SAE J2435 Welded Flash Controlled, SAE 1021 Carbon Steel Tubi
49、ng, Normalized for Bending, Double Flaring, and Beading SAE J2467 Welded and Cold-Drawn, SAE 1021 Carbon Steel Tubing Normalized for Bending and Flaring SAE J2592 Carbon Steel Tubing for General Use - Understanding Nondestructive Testing for Carbon Steel Tubing 2.2.2 ISO Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 272 Fasteners -
