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 2017 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:/standards.sae.org/AMS4044N AEROSPACE MATERIAL SPECIFICATION AMS4044 REV. N Issued 1949-06 Revised 2017-07 Superse
5、ding AMS4044M Aluminum Alloy, Sheet and Plate 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr Annealed (7075-O) or when specified, “As Fabricated“ (7075-F) (Composition similar to UNS A97075) RATIONALE AMS4044N replaces reference AS1990 with ANSI H35.1 and revises Properties (3.3.), Quality (3.4.1) Reports (4.4.1),
6、and Identification (5.1.1), and is a Five-Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of sheet and plate from .008 to 2.000 inches, incl (0.20 to 50.80 mm, incl) in thickness, supplied in the annealed (O) condition (see 8.4)
7、. 1.2 Application These products have been used typically for formed structural parts which will be subsequently heat treated, but usage is not limited to such applications. 1.2.1 Certain design and processing procedures may cause these products to become susceptible to stress-corrosion cracking aft
8、er heat treatment; ARP823 recommends practices to minimize such conditions. 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 producer may work to a subsequent revision of a
9、document unless a specific document issue is specified. 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 AMS4044N Page 2 of 7 2.1 SAE Publications Available from SAE International,
10、 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. AMS2355 Quality Assurance, Sampling and Testing, Aluminum Alloys and Magnesium Alloy, Wrought Products (Except Forging Stock), and Rolled, Forged, or Flash Wel
11、ded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials ARP823 Minimizing Stress-Corrosion Cracking in Wrought Heat-Treatable Aluminum Alloy Products ARP1917 Clarification of Terms Used in Aerospace Metals Specifications 2.2 ASTM Publications Available from ASTM International, 100 Barr Harb
12、or Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B594 Ultrasonic Inspection of Aluminum-Alloy Products for Aerospace Applications ASTM B660 Packaging/Packing of Aluminum and Magnesium Products ASTM B666/B666M Identification of Aluminum and Magnesium Al
13、loy Products 2.3 ANSI Accredited Publications Copies of these documents are available online at http:/webstore.ansi.org/. ANSI H35.1/H35.1M Alloy and Temper Designation Systems for Aluminum ANSI H 35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H 35.2M Dimensional Tolerances for Aluminum
14、 Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Shall conform to the percentages by weight as shown in Table 1, determined in accordance with AMS2355. Table 1 - Composition Element Min Max Silicon - 0.40 Iron - 0.50 Copper 1.2 2.0 Manganese - 0.30 Magnesium 2.1 2.9 Chromium 0.18 0.
15、28 Zinc 5.1 6.1 Titanium - 0.20 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.2 Condition SAE INTERNATIONAL AMS4044N Page 3 of 7 3.2.1 Annealed in accordance with AMS2772. 3.2.2 When specified, material may be provided in the “as fabricated” (F) temper. Requirements o
16、f 3.3.1 do not apply to the F temper. 3.3 Properties The product shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size. 3.3.1 As Annealed (-O Temper) Condition. 3.3.1.1 Tensile Properties Shall be as shown in Table 2. Table 2 Table 2A - Tensile
17、properties in annealed condition, inch/pound units Nominal Thickness Inches Tensile Strength ksi, max Yield Strength at 0.2% Offset, ksi, max Elongation in 2 Inches or 4D, %, min 0.008 to 0.014, incl 40.0 21.0 9 Over 0.014 to 0.499, incl 40.0 21.0 10 Over 0.499 to 2.000, incl 40.0 - 10 Table 2B - Te
18、nsile properties in annealed condition, SI units Nominal Thickness Millimeters Tensile Strength MPa, max Yield Strength at 0.2% Offset, MPa, max Elongation in 50.8 mm or 4D, %, min 0.20 to 0.36, incl 276 145 9 Over 0.36 to 12.67, incl 276 145 10 Over 12.67 to 50.80, incl 276 - 10 3.3.1.2 Bending Pro
19、duct shall withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter equal to the bend factor shown in Table 3 times the nominal thickness of the product with axis of bend parallel to the direction of rolling. Table 3 - Bending parameters in annealed
20、condition Nominal Thickness Inches Nominal Thickness Millimeters Bend Factor 0.008 to 0.020, incl 0.20 to 0.51, incl 1 Over 0.020 to 0.062, incl Over 0.51 to 1.57, incl 2 Over 0.062 to 0.091, incl Over 1.57 to 2.31, incl 3 Over 0.091 to 0.125, incl Over 2.31 to 3.18, incl 4 Over 0.125 to 0.249, incl
21、 Over 3.18 to 6.32, incl 5 Over 0.249 to 0.499, incl Over 6.32 to 12.67, incl 6 SAE INTERNATIONAL AMS4044N Page 4 of 7 3.3.2 Response to Heat Treatment (T62 Temper) Product in the O or F temper, after solution and precipitation heat treatment to the T62 temper (see H35.1/H35.1M) in accordance with A
22、MS2772, shall have the properties shown in Table 4. 3.3.2.1 Tensile Properties Shall be as shown in Table 4. Table 4 Table 4A -Tensile properties in T62 temper, inch/pound units Nominal Thickness Inches Tensile Strength ksi, min Yield Strength at 0.2% Offset ksi, min Elongation in 2 Inches or 4D, %,
23、 min 0.008 to 0.011, incl 74.0 63.0 5 Over 0.011 to 0.039, incl 76.0 67.0 8 Over 0.039 to 0.125, incl 78.0 68.0 9 Over 0.125 to 0.187, incl 79.0 69.0 9 Over 0.187 to 0.249, incl 80.0 69.0 9 Over 0.249 to 0.499, incl 78.0 67.0 9 Over 0.499 to 1.000, incl 78.0 68.0 7 Over 1.000 to 2.000, incl 77.0 67.
24、0 6 Table 4B - Tensile properties in T62 temper, SI units Nominal Thickness Millimeters Tensile Strength MPa, min Yield Strength at 0.2% Offset, MPa, min Elongation in 50.8 mm or 4D, %, min 0.20 to 0.28, incl 510 434 5 Over 0.28 to 0.99, incl 524 462 8 Over 0.99 to 3.18, incl 538 469 9 Over 3.18 to
25、4.75, incl 545 476 9 Over 4.75 to 6.32, incl 552 476 9 Over 6.32 to 12.67, incl 538 462 9 Over 12.67 to 25.40, incl 538 469 7 Over 25.40 to 50.80, incl 531 462 6 3.3.2.2 Bending Product shall withstand, without cracking, bending at room temperature through an angle of 180 degrees around a diameter e
26、qual to the bend factor shown in Table 5 times the nominal thickness of the product with axis of bend parallel to the direction of rolling. Table 5 - Bending parameters in T62 temper Nominal Thickness Inches Nominal Thickness Millimeters Bend Factor 0.008 to 0.020, incl 0.20 to 0.51, incl 7 Over 0.0
27、20 to 0.062, incl Over 0.51 to 1.57, incl 8 Over 0.062 to 0.091, incl Over 1.57 to 2.31, incl 9 Over 0.091 to 0.125, incl Over 2.31 to 3.18, incl 10 Over 0.125 to 0.249, incl Over 3.18 to 6.32, incl 11 Over 0.249 to 0.499, incl Over 6.32 to 12.67, incl 14 SAE INTERNATIONAL AMS4044N Page 5 of 7 3.3.3
28、 Response to Heat Treatment (T732 Temper) When specified, product in the O or F temper, after solution and precipitation heat treatment to the T732 temper (see H35.1/H35.1M) in accordance with AMS2772, shall have the properties shown in Table 6. (See 8.6) Table 6A -Tensile properties in T732 temper,
29、 inch/pound units Nominal Thickness Inches Tensile Strength ksi, min Yield Strength at 0.2% Offset ksi, min Elongation in 2 Inches or 4D, %, min Over 0.039 to 0.249, incl 67.0 56.0 8 Over 0.249 to 1.000, incl 69.0 57.0 7 Over 1.000 to 2.000, incl 69.0 57.0 6 Table 6B - Tensile properties in T732 tem
30、per, SI units Nominal Thickness Millimeters Tensile Strength MPa, min Yield Strength at 0.2% Offset, MPa, min Elongation in 50.8 mm or 4D, %, min Over 0.991 to 6.32, incl 462 386 8 Over 6.32 to 25.40, incl 476 393 7 Over 25.40 to 50.80, incl 476 393 6 3.3.4 Mechanical property requirements for produ
31、ct outside the range covered by Tables 2, 4 and 6 shall be agreed upon between purchaser and producer. 3.4 Quality The product, as received by purchaser, shall be uniform in quality and condition, sound, and free from foreign materials and from imperfections detrimental to usage of the product. 3.4.
32、1 When specified, each plate 0.500 to 2.000 inches (12.70 to 50.80 mm) shall be ultrasonically inspected in accordance with ASTM B594 and shall meet the requirements of ultrasonic class A. 3.5 Tolerances Shall conform to all applicable requirements of ANSI H 35.2 or ANSI H 35.2M. 4. QUALITY ASSURANC
33、E PROVISIONS 4.1 Responsibility for Inspection 4.2 The producer of the product shall supply all samples for producers tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure th
34、at the product conforms to the specified requirements. Classification of Tests 4.2.1 Acceptance Tests Composition (3.1), tensile properties as annealed (3.3.1.1) (not applicable to F temper), tensile properties after solution and precipitation heat treatment to T62 temper (3.3.2.1); tolerances (3.5)
35、 and, when specified by purchaser the tensile properties after solution and precipitation heat treatment to T732 temper (3.3.3), ultrasonic quality (3.4.1) are acceptance tests and, except for composition, shall be performed on each lot. 4.2.2 Periodic Tests Bending as annealed (3.3.1.2) (not applic
36、able to F temper); bending after solution, precipitation heat treatment to T62 temper (3.3.2.2) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser. SAE INTERNATIONAL AMS4044N Page 6 of 7 4.3 Sampling and Testing Sam
37、pling shall be in accordance with AMS2355. 4.4 Reports The producer of the product shall furnish with each shipment a report stating that the product conforms to the composition and showing the numerical results of tests on each lot to determine conformance to the tensile properties and, when perfor
38、med, to the periodic test requirements. This report shall include the purchase order number, lot number, AMS4044N, size, and quantity. The report shall also identify the producer, product form, producer lot number, and mill produced size. 4.4.1 When the product size is outside the range covered by T
39、ables 2, 4 and 6, the report shall contain a statement to that effect. 4.4.2 When material produced to this specification, is beyond the sizes allowed in the scope or tables or other exceptions are taken to the technical requirements listed in Section 3 (see 5.1.1), the report shall contain a statem
40、ent “This material is certified as AMS4044N(EXC) because of the following exceptions.” and the specific exceptions shall be listed. 4.5 Resampling and Retesting Shall be in accordance with AMS2355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B666/B666M. 5.1.1 When
41、 technical exceptions are taken (see 4.4.2), the material shall be marked with AMS4044N(EXC). 5.2 Protective Treatment Product shall be protected from damage during shipment and/or storage by a method determined by the producer unless specified by the purchaser. Typical examples of protective measur
42、es include but are not limited to interleaving with paper or oiling of surfaces. 5.3 Packaging Product shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the sheet to ensure
43、carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A producer shall include this specification number and its revision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Product not conforming to this specification, or to modifications authorized by purchaser, will b
44、e subject to rejection. SAE INTERNATIONAL AMS4044N Page 7 of 7 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 changes, have been made to the previous issue of this document. An
45、(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 only. 8.2 Terms used in AMS are clarified in ARP1917. 8.3 Dimensions a
46、nd 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. 8.4 Purchase documents should specify not less than
47、the following: AMS4044N Form and size of product required. Property and acceptance requirements from the cognizant engineering organization applicable to sizes outside the range shown in Tables 2, 4, and 6. Quantity of product required. Response to heat treat for T732 temper (if required) (see 3.3.3
48、) Ultrasonic quality (if required) (see 3.4.1) 8.5 Similar Specifications AMS-QQ-A-250/12E (QQ-A-250/12), Temper O and F, and ASTM B209, alloy 7075-O and -F are listed for information only and shall not be construed as acceptable alternates unless all requirements of this AMS are met. 8.6 T732 Temper values Mechanical properties were established under QQ-A-250/12 and AMS4078. PREPARED BY AMS COMMITTEE “D”
