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 ther
2、efrom, 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 International All rights reserved. No part of this
3、publication 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: +1 724-776-49
4、70 (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/J1065_201605 SURFACE VEHICLE INFORMATION REPORT J1065 MAY2016 Issued 1974-01 Rev
5、ised 2016-05 Superseding J1065 SEP2009 Nominal Reference Working Pressures for Steel Hydraulic Tubing RATIONALE This SAE Information Report has been revised as part of the SAE five-year review process. This document continues to recommend metric tubing for new designs. Despite the end of the five-ye
6、ar retention period, The Barlow Formula, The Boardman Formula and The Lame Formula included in Appendix A have been retained per a consensus of opinion that these formulas are still commonly used in the industry. All pressure rating data found in the charts included in this document were calculated
7、per the formula found in ISO 10763 and the main body of this document. Please note the changes as follows: a. Updated Applicable Documents and Related Publications lists b. Revised formula presentation 1. SCOPE This SAE Information Report is intended to provide design guidance in the selection of st
8、eel tubing and related tube fittings for general hydraulic system applications. The information presented herein is based on tubing products which conform to SAE and ISO standards listed in the reference section. 1.1 Purpose The purpose of this document is to provide nominal reference working pressu
9、res for selecting tube material, OD size and wall thickness for given hydraulic system working pressures based on the recommended 4 to 1 design factor of the applicable burst pressure rating. 1.2 Information Report Since many factors influence the pressure at which a hydraulic system will or will no
10、t perform satisfactorily, this document should not be used as a “standard” nor a “specification,” and the values shown herein should not be construed as “guaranteed” minimum or absolutes. This document is an information report only. Reference SAE J2551-1 for information concerning designing, bending
11、, fabrication and routing of fluid conductor metallic tube assemblies. 1.3 Minimum Tensile Strength Within the fluid power industry, many criteria are used for determining the pressure capability of steel tubing. In this document, consideration is given to specified minimum tensile strength of the m
12、aterials to calculate the nominal minimum burst pressure of the specified steel tubing. The actual tensile strength of the material can be easily determined by common methods of testing. SAE INTERNATIONAL J1065 MAY2016 Page 2 of 12 1.4 Straight Tube Sections The nominal reference working pressures l
13、isted in this document are for straight tube sections of the listed tubing materials only. Factors such as the thinning of tube walls due to forming operations, shock loads, and vibration characteristics of the system should also be considered when designing all hydraulic tubes and tube assemblies,
14、especially in high pressure applications. 1.5 Operating at 100% of the Reference Working Pressures When designing systems that operate at 100% of the charted reference working pressure, in conjunction with the materials being subjected to bending, cold forming, wall thinning, brazing, welding, side
15、loads, shock loads and extreme vibrations, the maximum yield strength of the material may be compromised, which may lead to premature failure of the tube material. Therefore, a good recommended practice is to design hydraulic systems to operate at a level less than the calculated maximum reference w
16、orking pressures of the materials used. This diminished level may vary from application to application, depending on the operating conditions, pressure spikes and designer discretion, 90% is commonly used. 1.6 Endurance Testing As it is impractical to specify in this report guaranteed allowable work
17、ing pressures that will satisfy all design criteria for every hydraulic system endurance testing in accordance with ISO 19879 is recommended. See SAE J2593 Information Report for the Installation of Fluid Conductors and Connectors for installation guidance, recommended assembly sequence and recommen
18、ded tightening torque values. 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
19、 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J356 Welded Flash-Controlled Low-Carbon Steel Tubing Normalized for Bending, Double Flaring, and Beading SAE J524 Seamless Low-Carbon Steel Tubing Annealed for
20、 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 Suitable for Bending, Flaring, Beading, Forming and Brazing SAE J527 Brazed Double Wall Low-Carbon Steel Tubing SAE J533 Flares for Tubing SAE J2435 We
21、lded Flash Controlled, SAE 1021 Carbon Steel Tubing, Normalized for Bending, Double Flaring, and Beading SAE J2467 Welded and Cold-Drawn, SAE 1021 Carbon Steel Tubing Normalized for Bending and Flaring SAE J2551-1 Recommended Practices for Fluid Conductor Carbon, Alloy and High Strength Low Alloy St
22、eel Tubing Applications-Part 1: Design and Fabrication 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 SAE INTERNATIONAL J1065 MAY2016 Page 3 of 12 SAE J2551-3 Recomm
23、ended Practice for Fluid Conductor 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-Criti
24、cally Annealed for Bending, Double 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, Stres
25、s Relieved Annealed for Bending and 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 Copies of these documents are available online at http:/webstore.ansi
26、.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 10763 Plain-end, seamless and welded steel tubes - Dimensions and nominal working pressures ISO 19879 Metallic tube conn
27、ections for fluid power and general use - Test methods for hydraulic fluid power connections 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this SAE Technical Report. 2.2.1 SAE Publications Available from SAE Internationa
28、l, 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 J514 Hydraulic Tube Fittings SAE J515 Specification for Hydraulic O-Ring Materials, Proper
29、ties, and Sizes for Metric and Inch Stud Ends, Face Seal Fitting and Four-Screw Flange Tube Connections SAE J518 Hydraulic Flanged Tube, Pipe, and Hose Connections, Four-Bolt Split Flange Type SAE J1231 Formed Tube Ends for Hose Connections and Hose Fittings SAE J1273 Recommended Practices for Hydra
30、ulic Hose Assemblies SAE INTERNATIONAL J1065 MAY2016 Page 4 of 12 SAE J1290 Automotive Hydraulic Brake System - Metric Tube Connections SAE J1453-1 Specification for O-Ring Face Seal Connectors: Part 1 - Tube Connection Details and Common Requirements for Performance and Tests SAE J1453-2 Specificat
31、ion for O-Ring Face Seal Connectors: Part 2 - Requirements, Dimensions, and Tests for Steel Unions, Bulkheads, Swivels, Braze Sleeves, Caps, and Connectors with ISO 6149-2 Metric Stud Ends SAE J1453-3 Specification for O-Ring Face Seal Connectors: Part 3 - Requirements, Dimensions, and Tests for Ste
32、el Unions, Bulkheads, Swivels, Braze Sleeves, Connectors, Caps, and Connectors with SAE J1926-2 Inch Stud Ends SAE J1677 Tests and Procedures for Carbon Steel and Low Alloy Steel Tubing SAE J2044 Quick Connect Coupling Specification for Liquid Fuel and Vapor/Emissions Systems SAE J2592 Carbon Steel
33、Tubing for General Use - Understanding Nondestructive Testing for Carbon Steel Tubing 2.2.2 ISO Publications Copies of these documents are available online at http:/webstore.ansi.org/ ISO 2944 Fluid power systems and components - Nominal pressures ISO 4397 Connectors and associated components - Nomi
34、nal outside diameters of tubes and nominal inside diameters of hoses ISO 4399 Connectors and associated components - Nominal pressures ISO 5598 Fluid power systems and components - Vocabulary ISO 6162-1 Hydraulic fluid power - Flange connectors with split or one-piece flange clamps and metric or inc
35、h screwsPart 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-Piece Flange Clamps and Metric or Inch Screws - Part 2: Flange Connectors for Use at Pressures of 35 MPa (350 Bar) to
36、40 MPa (400 bar), DN 13 to DN 51 ISO 6163 Round Flange, 8 and 12 screw connections ISO 6164 Four-screw, one-piece square-flange connections ISO 6605 Tests and test procedures ISO 8434-1 Metallic tube connections for fluid power and general use - Part 1: 24q Compression connectors ISO 8434-2 Metallic
37、 tube connections for fluid power and general use - Part 2: 37q 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: 24q Cone connectors with o-ring
38、weld-on nipples ISO 10583 Test methods for tube connections SAE INTERNATIONAL J1065 MAY2016 Page 5 of 12 2.2.3 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 app
39、lications - 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 2.2.4 ASTM Publications Available from ASTM International, 100 B
40、arr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org ASTM A 513 Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Tubing 3. TUBE SELECTION Tube material, size and wall thickness may be selected from Tables 1 through 10. NOTE: W
41、hen tubing information discrepancies between this document and associated tubing specifications occur, the current tubing and end connection specifications shall take precedence. 4. NOMINAL PRESSURES See Tables 1 through 5 for metric size tubing nominal reference working pressures. See Tables 6 thro
42、ugh 10 for inch size nominal reference working pressures. The nominal reference working pressures listed are based on a design factor ratio of 4 to 1. The nominal reference working pressures in all tables are derived from the calculated nominal static reference burst pressure and the calculated nomi
43、nal reference working pressure using the following formulas: Burst Pressure Pb = Rm dDln (Eq. 1)(Eq. 2) where: Pb is the nominal static reference burst pressure in MPa (megapascals) Pw is the nominal reference working pressure in MPa (megapascals) Rm is the minimum tensile strength in MPa (megapasca
44、ls) ln is the natural logarithm, also referred to as log e D is the nominal tube outside diameter in millimeters d is the nominal tube inside diameter in millimeters NOTE: These formulae and the derived nominal reference working pressures are only applicable to the listed tube materials, of which, a
45、ll have at least a 50% ratio of the minimum yield strength to the minimum tensile strength. When calculating nominal reference pressures for tube materials where this ratio falls below a 50% ratio, formulae listed in “Appendix A” should be used. Working Pressure - PwPb4-=SAE INTERNATIONAL J1065 MAY2
46、016 Page 6 of 12 Table 1 - Metric size tubing nominal reference working pressures in MPa (MPa X 145 = PSI) for SAE J526 and SAE J527 low carbon steel hydraulic tubing at 4 to 1 design factor material strength = 290 MPa minimum tensile (Reference for size dimensions from ISO 3304 and ISO 3305) Metric
47、 Size Tubing Nom Tube OD mm Nominal Wall Thick- ness in mm 0.5 Nominal Wall Thick- ness in mm 1.0 Nominal Wall Thick- ness in mm 1.5 Nominal Wall Thick- ness in mm 2.0 Nominal Wall Thick- ness in mm 2.5 Nominal Wall Thick- ness in mm 3.0 Nominal Wall Thick- ness in mm 4.0 Nominal Wall Thick- ness in
48、 mm 5.0 Nominal Wall Thick- ness in mm 6.0 Nominal Wall Thick- ness in mm 8.0 4 21 50 5 16 37 67 6 13 30 50 8 10 21 34 50 10 8 16 26 37 50 12 6.3 13 21 30 39 50 16 10 15 21 27 34 50 20 8 12 16 21 26 37 50 25 6 9 13 16 20 28 37 48 32 7 10 13 15 21 27 34 50 38 6 8 10 13 17 22 28 40 40 8 10 12 16 21 26
49、 37 50 6 8 9 13 16 20 2860 5 7 8 11 12 16 23 70 4 6 7 9 11 14 1980 5 6 8 10 12 16 Table 2 - Metric size tubing nominal reference working pressures in MPa (MPa X 145 = PSI) for SAE J356, SAE J524 and SAE J525 low carbon steel hydraulic tubing at 4 to 1 design factor material strength = 310 MPa minimum tensile (Reference for size dimensions from ISO 3304 and ISO 3305) Metric Size Tubing Nom Tub
