1、_ SAE TechnLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSXEOLVKHGE 6$(WRDGYDQFHWKHVWDWHRIWHFKQLFDODQGHQJLQHHULQJV ciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any SDWHQWLQIULQJHPHQWDULVLQJWKHUHIURPLVWKHVROHUHVSRQVLELO
2、LWRIWKH XVHU 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 publication may be reproduced, stor
3、ed 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 (outside USA) Fax: 724-776-0790
4、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/AMS3655C AEROSPACE MATERIAL SPECIFICATION AMS3655 REV. C Issued 1961-01 Reaffirmed 1999-01 Revised 2016-09 Supersed
5、ing AMS3655B Tubing, Electrical Insulation Thin Wall, Extruded Polytetrafluoroethylene (PTFE) RATIONALE Minor changes are a result of 5 year review. 1. SCOPE 1.1 Form This specification covers extruded polytetrafluoroethylene (PTFE) in the form of flexible tubing. 1.2 Application This tubing has bee
6、n used typically as an electrical insulating sheath in service up to 500 F (260 qC), but usage is not limited to such applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardou
7、s materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all
8、personnel involved. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified.
9、When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. SAE INTERNATIONAL AMS3655C Page 2 of 8 2.1 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohock
10、en, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D876 Non-Rigid Vinyl Chloride Polymer Tubing Used for Electrical Insulation ASTM D1675 Testing Polytetrafluoroethylene Tubing 2.2 U.S. Government Publications Copies of these documents are available online at http:/quicksearch.dla.mil. MIL-STD
11、-104 Limit for Electrical Insulation Color MIL-STD-2073-1 Standard Practice for Military Packaging 3. TECHNICAL REQUIREMENTS 3.1 Material Shall be flexible tubing made from extruded polytetrafluoroethylene (PTFE). 3.2 Color Shall be natural, ranging from colorless translucent to semi opaque white. W
12、hen ordered in colors, the colors shall be in accordance with MIL-STD-104 or as agreed upon by purchaser and vendor. 3.3 Properties Tubing shall conform to requirements shown in Table 1; tests shall be performed on the tubing supplied and in accordance with specified ASTM methods, insofar as practic
13、able. SAE INTERNATIONAL AMS3655C Page 3 of 8 Table 1 - Properties Paragraph Property Requirement Test Method 3.3.1 Tensile Strength at 200% elongation 2500 to 6000 psi (17.2 to 41.4 MPa) ASTM D876 73.4 qF 3.6 F (23 C 2 C) 3.3.2 Elongation, minimum 200% ASTM D876 73.4 qF 3.6 F (23 qC 2 C) 3.3.3 Diele
14、ctric Breakdown Voltage, minimum average Nominal Nominal Wall Thickness Wall Thickness Inch Millimeters 0.009 0.23 0.012 0.30 0.016 0.41 0.020 0.51 0.025 0.64 0.030 0.76 0.035 0.89 0.040 1.02 8000 volts 10000 volts 13000 volts 16000 volts 18000 volts 20000 volts 20000 volts 20000 volts ASTM D876 73.
15、4 qF 3.6 F (23 qC 2 C) 3.3.4 Specific Gravity 2.14 - 2.21 ASTM D1675 3.3.5 Strain Relief (shrinkage), maximum 1.0% ASTM D1675 572 qF 5 F (300 qC 3 C) 3.3.6 Volatile Loss, maximum 0.05% ASTM D1675 572 qF 5 F (300 qC 3 C) 3.4 Quality Tubing, as received by purchaser, shall be uniform in quality and co
16、ndition, smooth, and free from foreign materials and from imperfections detrimental to usage of the tubing. 3.5 Sizes and Tolerances Shall be as shown in Table 2; tolerances apply at 68 to 86 F (20 to 30 C), measured in accordance with ASTM D1675. SAE INTERNATIONAL AMS3655C Page 4 of 8 Table 2A - Si
17、zes and tolerances, inch/pound units Size No. ID, Inch Nominal ID, Inch Minimum ID, Inch Maximum Wall Thickness Inch Nominal Wall Thickness Tolerance Inch 30 0.012 0.010 0.015 0.009 0.002 28 0.015 0.013 0.019 0.009 0.002 26 0.018 0.016 0.022 0.009 0.002 24 0.022 0.020 0.027 0.010 0.003 23 0.026 0.02
18、3 0.030 0.010 0.003 22 0.028 0.025 0.032 0.010 0.003 21 0.032 0.029 0.036 0.010 0.003 20 0.034 0.032 0.040 0.012 0.003 19 0.038 0.036 0.044 0.012 0.003 18 0.042 0.040 0.049 0.012 0.003 17 0.047 0.045 0.054 0.012 0.003 16 0.053 0.051 0.061 0.012 0.003 15 0.059 0.057 0.067 0.012 0.003 14 0.066 0.064 0
19、.074 0.012 0.003 13 0.076 0.072 0.082 0.012 0.003 12 0.085 0.081 0.091 0.012 0.003 11 0.095 0.091 0.101 0.012 0.003 10 0.106 0.102 0.112 0.012 0.003 9 0.118 0.114 0.124 0.015 0.003 1/8 0.125 0.120 0.130 0.015 0.003 8 0.133 0.129 0.141 0.015 0.003 7 0.148 0.144 0.158 0.015 0.003 6 0.166 0.162 0.178 0
20、.015 0.003 5 0.186 0.182 0.198 0.015 0.003 4 0.208 0.204 0.224 0.015 0.003 3 0.234 0.229 0.249 0.015 0.003 1/4 0.255 0.250 0.260 0.015 0.003 2 0.263 0.258 0.278 0.015 0.003 1 0.294 0.289 0.311 0.015 0.003 5/16 0.321 0.313 0.334 0.015 0.003 0 0.330 0.325 0.347 0.015 0.003 3/8 0.387 0.375 0.399 0.015
21、0.003 7/16 0.451 0.438 0.464 0.018 0.004 1/2 0.515 0.500 0.530 0.018 0.004 5/8 0.643 0.625 0.662 0.020 0.004 3/4 0.772 0.750 0.795 0.025 0.005 SAE INTERNATIONAL AMS3655C Page 5 of 8 Table 2B - Sizes and tolerances, SI units Size No. ID Millimeters Nominal ID Millimeters Minimum ID Millimeters Maximu
22、m Wall Thickness Millimeter Nominal Wall Thickness Tolerance Millimeter 30 0.30 0.25 0.38 0.23 0.05 28 0.38 0.33 0.48 0.23 0.05 26 0.46 0.41 0.56 0.23 0.05 24 0.56 0.51 0.68 0.25 0.08 23 0.66 0.58 0.76 0.25 0.08 22 0.71 0.64 0.81 0.25 0.08 21 0.81 0.74 0.91 0.25 0.08 20 0.86 0.81 1.02 0.30 0.08 19 0
23、.96 0.91 1.12 0.30 0.08 18 1.07 1.02 1.24 0.30 0.08 17 1.19 1.14 1.37 0.30 0.08 16 1.35 1.30 1.55 0.30 0.08 15 1.50 1.45 1.70 0.30 0.08 14 1.68 1.62 1.88 0.30 0.08 13 1.93 1.83 2.08 0.30 0.08 12 2.16 2.06 2.31 0.30 0.08 11 2.41 2.31 2.56 0.30 0.08 10 2.69 2.59 2.84 0.30 0.08 9 3.00 2.90 3.15 0.38 0.
24、08 1/8 3.18 3.05 3.30 0.38 0.08 8 3.38 3.28 3.58 0.38 0.08 7 3.76 3.66 4.01 0.38 0.08 6 4.22 4.11 4.52 0.38 0.08 5 4.72 4.62 5.03 0.38 0.08 4 5.28 5.18 5.69 0.38 0.08 3 5.93 5.82 6.32 0.38 0.08 1/4 6.48 6.35 6.60 0.38 0.08 2 6.68 6.55 7.06 0.38 0.08 1 7.47 7.34 7.90 0.38 0.08 5/16 8.15 7.95 8.48 0.3
25、8 0.08 0 8.38 8.26 8.81 0.38 0.08 3/8 9.83 9.52 10.13 0.38 0.13 7/16 11.46 11.12 11.78 0.46 0.10 1/2 13.08 12.70 13.46 0.46 0.10 5/8 16.33 15.88 16.81 0.51 0.10 3/4 19.61 19.05 20.19 0.64 0.13 SAE INTERNATIONAL AMS3655C Page 6 of 8 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection Th
26、e vendor of tubing shall supply all samples for vendors tests and shall be responsible for performing all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the tubing conforms to the requirements of this specification. 4.2
27、Classification of Tests 4.2.1 Acceptance Tests Tests for requirements shown in Table 3 are acceptance tests and shall be performed on each lot. Table 3 - Acceptance tests Requirement Paragraph Reference Tensile Strength 3.3.1 Elongation 3.3.2 Dielectric Breakdown Voltage 3.3.3 Specific Gravity 3.3.4
28、 Tolerances 3.5 4.2.2 Preproduction Tests Tests for all technical requirements are preproduction tests and shall be performed prior to or on the initial shipment of tubing to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirm
29、atory testing to be required. 4.2.2.1 For direct U.S. Military procurement, substantiating test data and, when requested, preproduction test material shall be submitted to the cognizant agency as directed by the procuring activity, contracting officer, or request for procurement. 4.3 Sampling and Te
30、sting Shall be as follows: 4.3.1 For Acceptance Tests Sufficient tubing shall be taken at random from each lot to perform all required tests. The number of determinations for each requirement shall be as specified in the applicable test procedure or, if not specified therein, not less than three. 4.
31、3.1.1 When suitable test specimens cannot be cut from the product, a separate flat strip test sample shall be supplied upon request. This strip shall be prepared from tubing 1.000 inch 0.063 inch (25.40 mm 1.60 mm) in OD by 0.075 inch 0.008 inch (1.90 mm 0.20 mm) in wall thickness, mechanically slit
32、 and flattened into a strip while being extruded, and cured in the same manner as production tubing. 4.3.1.2 A lot shall be all tubing from the same batch of compound, processed in one continuous run, and presented for vendors inspection at one time. 4.3.1.3 When a statistical sampling plan has been
33、 agreed upon by purchaser and vendor, sampling shall be in accordance with such plan in lieu of sampling as in 4.3.1 and the report of 4.5 shall state that such plan was used. SAE INTERNATIONAL AMS3655C Page 7 of 8 4.3.2 For Preproduction Tests As agreed upon by purchaser and vendor. 4.4 Approval 4.
34、4.1 Sample tubing shall be approved by purchaser before tubing for production use is supplied, unless such approval be waived by purchaser. Results of tests on production tubing shall be essentially equivalent to those on the approved sample. 4.4.2 Vendor shall use ingredients, manufacturing procedu
35、res, processes, and methods of inspection on production tubing which are essentially the same as those used on the approved sample. If necessary to make any change in ingredients, in type of equipment for processing, or in manufacturing procedures, vendor shall submit for reapproval a statement of t
36、he proposed changes in ingredients and/or processing and, when requested, sample tubing. Production tubing made by the revised procedure shall not be shipped prior to receipt of reapproval. 4.5 Reports The vendor of tubing shall furnish with each shipment a report showing the results of tests to det
37、ermine conformance to the acceptance test requirements and stating that the tubing conforms to the other technical requirements. This report shall include the purchase order number, lot number, AMS3655C, vendors material designation, and quantity. 4.6 Resampling and Retesting If any specimen used in
38、 the above tests fails to meet the specified requirements, disposition of the tubing may be based on the results of testing three additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the tubin
39、g represented. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Identification Each package shall be permanently and legibly marked with not less than AMS3655C, size, color, quantity, lot number, purchase order number, manufacturers identification, and date of manufacture. 5.2
40、 Packaging 5.2.1 Packaging shall be accomplished to ensure that the tubing, during shipment and storage, will not be permanently distorted and will be protected against damage from exposure to weather or any other normal hazard. 5.2.1.1 Standard packages shall contain quantities as agreed upon by pu
41、rchaser and vendor. 5.2.1.2 Packaging of special sizes and lengths shall be as agreed upon by purchaser and vendor. 5.2.1.3 A lot of tubing may be packaged in small quantities and delivered under the basic lot approval provided lot identification is maintained. 5.2.2 Packages of tubing shall be prep
42、ared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the tubing to ensure carrier acceptance and safe delivery. 5.2.3 For direct U.S. Military procurement, packaging shall be in a
43、ccordance with MIL-STD-2073-1, Commercial Level, unless Level A is specified in the request for procurement. SAE INTERNATIONAL AMS3655C Page 8 of 8 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7.
44、REJECTIONS Tubing not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial
45、 changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes on
46、ly. 8.2 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information. 8.3 For direct U.S. Military pro
47、curement, purchase documents should specify not less than the following: Title, number, and date of this specification Size and color of tubing desired Quantity of tubing desired Level A packaging, if required (see 5.2.3). 8.4 Tubing meeting the requirements of this specification has been classified under Federal Supply Classification (FSC) 9330. PREPARED BY AMS COMMITTEE “P“
