1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE6$(WRDGYDQFHWKHVWD te 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 therefrom, LVWKHVROHUH
2、VSRQVLELOLWRIWKHXVHU 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 reproduc
3、ed, 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 (outside USA) Fax: 724-7
4、76-0790 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/AMS5070J AEROSPACE MATERIAL SPECIFICATION AMS5070 REV. J Issued 1942-03 Reaffirmed 2011-05 Revised 2016-03
5、Superseding AMS5070H Steel, Bars and Forgings 0.18 - 0.23C (SAE 1022) (Composition similar to UNS G10220) RATIONALE AMS5070J is a Five Year Review and update of this specification that revises grain size testing, the mechanical property testing specification and reporting. 1. SCOPE 1.1 Form This spe
6、cification covers a carbon steel in the form of bars up through 3.000 inches (76.2 mm), forgings, and forging stock. 1.2 Application This product has been used typically for parts requiring low strength and high ductility, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The is
7、sue 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. When the referenced document has been cancelled an
8、d no superseding document has been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available 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. AMS2
9、231 Tolerances, Carbon Steel Bars AMS2259 Chemical Check Analysis Limits, Wrought Low-Alloy and Carbon Steels AMS2370 Quality Assurance Sampling and Testing, Carbon and Low-Alloy Steel Wrought Products and Forging Stock AMS2372 Quality Assurance Sampling and Testing Carbon and Low-Alloy Steel Forgin
10、gs SAE INTERNATIONAL AMS5070J Page 2 of 6 AMS2806 Identification Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat Resistant Steels and Alloys AMS2808 Identification Forgings 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P
11、.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM A370 Mechanical Testing of Steel Products ASTM E112 Determining Average Grain Size ASTM E350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron 3. TECHNICAL R
12、EQUIREMENTS 3.1 Composition Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E350, by spectrochemical methods, or by other analytical methods acceptable to purchaser. Table 1 - Composition Element min max Carbon 0.18 0.23 Mangane
13、se 0.70 1.00 Silicon 0.15 0.35 Phosphorus - 0.040 Sulfur - 0.050 3.1.1 Aluminum, vanadium and columbium are optional grain refining elements and need not be determined or reported unless used to satisfy the average grain size requirements of 3.3.2.2. 3.1.2 Check Analysis Composition variations shall
14、 meet the applicable requirements of AMS2259. 3.2 Condition The product shall be supplied in the following condition: 3.2.1 Bars Cold finished. Bar shall not be cut from plate (also see 4.4.2). 3.2.2 Forgings Normalized. 3.2.3 Forging Stock As ordered by the forging manufacturer. SAE INTERNATIONAL A
15、MS5070J Page 3 of 6 3.3 Properties Bars and forgings shall conform to the following requirements: 3.3.1 Tensile Properties Shall be as follows, determined in accordance with ASTM A370: 3.3.1.1 Bars Shall be as shown in Table 2. Table 2A - Minimum tensile properties, inch/pound units Nominal Diameter
16、 or Least Distance Between Parallel Sides Inches Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 4D % Up to 0.875, incl 70 60 18 Over 0.875 to 1.250, incl 65 55 16 Over 1.250 to 2.000, incl 60 50 15 Over 2.000 to 3.000, incl 55 45 15 Table 2B - Minimum tensile properties, SI uni
17、ts Nominal Diameter or Least Distance Between Parallel Sides Millimeters Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 4D % Up to 22.22, incl 483 414 18 Over 22.22 to 31.75, incl 448 379 16 Over 31.75 to 50.80, incl 414 345 15 Over 50.80 to 76.20, incl 379 310 15 3.3.1.1.1 Ten
18、sile property requirements for product outside the range covered by Table 2 shall be agreed upon between purchaser and producer. 3.3.1.2 Forgings Shall be as shown in Table 3. Table 3 - Minimum tensile properties Property Value Tensile Strength 55 ksi (379 MPa) Yield Strength at 0.2% Offset 36.0 ksi
19、 (248 MPa) Elongation in 4D 22% SAE INTERNATIONAL AMS5070J Page 4 of 6 3.3.1.2.1 For each 2.0 ksi (14 MPa) in excess of 55 ksi (379 MPa) tensile strength, a reduction in elongation of 1% to a minimum elongation of 10% is permissible. 3.3.2 Average Grain Size Average grain size shall be determined by
20、 either 3.3.2.1 or 3.3.2.2. 3.3.2.1 Shall be ASTM No. 4 or finer determined in accordance with ASTM E112. 3.3.2.2 The product of a heat shall be considered to have an ASTM No. 4 or finer austenitic grain size if one or more of the following are determined by heat analysis (see 8.4): 3.3.2.2.1 A tota
21、l aluminum content of 0.020 to 0.050%. 3.3.2.2.2 An acid soluble aluminum content of 0.015 to 0.050%. 3.3.2.2.3 A vanadium content of 0.02 to 0.08%. 3.3.2.2.4 A columbium content of 0.02 to 0.05%. 3.4 Quality The product, as received by purchaser, shall be uniform in quality and condition, sound, an
22、d free from foreign materials and from imperfections detrimental to usage of the product. 3.4.1 Grain flow of die forgings, except in areas that contain flash-line end grain, shall follow the general contour of the forgings showing no evidence of reentrant grain flow. 3.5 Tolerances Bars shall confo
23、rm to all applicable requirements of AMS2231. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The SURGXFHURIWKHSURGXFWVKDOOVXSSODOOVDPSOHVIRUSURGXFHUVWHVWVDQGVKDOOEHUHVS RQVLEOHIRUWKHSHUIRUPDQFHRIDOOrequired tests. Purchaser reserves the right to sample and perform any confirmatory
24、 testing deemed necessary to ensure that the product conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1), average grain size (3.3.2), and tolerances (3.6), are acceptance tests and shall be performed on each heat or lot
25、 as applicable. If grain refining elements (3.3.2.2) are not present, the ASTM E112 grain size test (3.3.2.1) shall be conducted on each lot. 4.2.2 Periodic Tests If grain refining elements (3.3.2.2) are present, the ASTM E112 grain size test (3.3.2.1) shall be conducted on a periodic basis and shal
26、l be performed at a frequency selected by the producer (not to exceed one year) unless frequency of testing is specified by purchaser. Grain flow of die forgings (3.4.1) is a periodic test and shall be performed at a frequency selected by the producer unless a frequency of testing is specified by pu
27、rchaser. SAE INTERNATIONAL AMS5070J Page 5 of 6 4.3 Sampling and Testing Shall be as follows: 4.3.1 Bars and Forging Stock In accordance with AMS2370. 4.3.2 Forgings In accordance with AMS2372. 4.4 Reports 4.4.1 The producer of bars and forgings shall furnish with each shipment a report showing the
28、producer identity, results of tests for chemical composition of each heat and for tensile properties and, if measured, average grain size of each lot, and stating that the product conforms to the other technical requirements. This report shall include the purchase order number, heat and lot numbers,
29、 AMS5070J, size and quantity. If forgings are supplied, the size and melt source of stock used to make the forgings shall also be included. If the grain size requirement of 3.3.2.2 is met by the aluminum, vanadium and/or columbium content, the aluminum, vanadium and/or columbium content shall be rep
30、orted and a statement that the chemistry satisfies the grain size requirement shall be included. 4.4.1 If the ship size/shape is cut from a larger cross section, report the nominal metallurgically worked size (also see 3.2.1). 4.4.2 The producer of forging stock shall furnish with each shipment a re
31、port showing the producer identity, results of tests for composition, of each heat and the results of any additional property requirements imposed by the purchase order (see 8.5). This report shall include the purchase order number, heat number, AMS5070J, size and quantity. 4.5 Resampling and Retest
32、ing Shall be as follows: 4.5.1 Bars and Forging Stock In accordance with AMS2370. 4.5.2 Forgings In accordance with AMS2372. 5. PREPARATION FOR DELIVERY 5.1 Sizes Except when exact lengths or multiples of exact lengths are ordered, straight bars will be acceptable in mill lengths of 6 to 20 feet (1.
33、8 to 6.1 m), but not more than 10% of any shipment shall be supplied in lengths shorter than 10 feet (3 m). 5.2 Identification Shall be as follows: 5.2.1 Bars In accordance with AMS2806. 5.2.2 Forgings In accordance with AMS2808. SAE INTERNATIONAL AMS5070J Page 6 of 6 5.2.3 Forging Stock As agreed u
34、pon by purchaser and producer. 5.3 Protective Treatment Bars ordered cold drawn, cold rolled, ground, turned, or polished shall be protected from corrosion prior to shipment. 5.4 Packaging The product shall be prepared for shipment in accordance with commercial practice and in compliance with applic
35、able rules and regulations pertaining to the handling, packaging, and transportation of the product to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A producer shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7
36、. REJECTION Product 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 editori
37、al 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
38、only. 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 Terms used in AMS are clar
39、ified in ARP1917. 8.4 Grain size The average grain size resulting from using the appropriate test procedures per ASTM E112 will satisfy an ASTM No. 5 or finer grain size when the elements defined in 3.3.2.2 as grain refiners are present. Other technical societies have adopted the verification of fin
40、e grain steel based on chemistry alone. Included are ASTM International (Documents A6, A20, and A29); American Society of Mechanical Engineers (Documents SA6, SA20, and SA29); American Bureau of Shipping; CSA Group (Canada); EuroNorm documents; American Association of State Highway and Transportation Officials. 8.5 Purchase documents should specify not less than the following: AMS5070J Form and size or part number of product desired Quantity of product desired. PREPARED BY AMS COMM,77(
