SAE AMS 4201G-2020

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Copyright © 2020 SAE International
All rights reserved. No part of this 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.
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For more information on this standard, visit
https://www.sae.org/standards/content/AMS4201G/
AEROSPACE
MATERIAL SPECIFICATION
AMS4201™
REV. G
Issued 1980-01
Reaffirmed 2008-05
Revised 2020-08
Superseding AMS4201F
Aluminum Alloy Plate
6.2Zn - 2.3Cu - 2.2Mg - 0.12Zr (7050-T7651)
Solution Heat Treated, Stress Relieved, and Overaged
(Composition similar to A97050)
RATIONALE
AMS4201G adds AS6279 (3.6), prohibits unauthorized exceptions (3.7), and revises condition (3.2), properties (3.3.1.1),
reports (4.4.1), and identification (5.1.1), and results from a Five-Year Review and update of this specification.
1. SCOPE
1.1 Form
This specification covers an aluminum alloy in the form of plate 0.250 to 3.000 inches (6.35 to 76.20 mm) in nominal
thickness (see 8.5).
1.2 Application
This plate has been used typically for parts requiring a high level of mechanical properties and resistance to exfoliation
corrosion and moderate resistance to stress-corrosion cracking, but usage is not limited to such applications.
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. When the referenced document has been cancelled and 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.
AMS2355 Quality Assurance Sampling and Testing, Aluminum Alloys and Magnesium Alloys, Wrought
Products (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings
AMS2772 Heat Treatment of Aluminum Alloy Raw Materials
ARP1917 Clarification of Terms Used in Aerospace Metals Specifications
AS6279 Standard Practice for Production, Distribution, and Procurement of Metal Stock
Downloaded from SAE International by Univ of Toronto, Tuesday, August 03, 2021
SAE INTERNATIONAL AMS4201™G Page 2 of 6
2.2 ASTM Publications
Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959,
Tel: 610-832-9585, www.astm.org.
ASTM B557 Tension Testing of Wrought and Cast Aluminum and Magnesium Alloy Parts
ASTM B594 Ultrasonic Inspection of Aluminum-Alloy Wrought Products
ASTM B660 Packing/Packaging of Aluminum and Magnesium Products
ASTM B666/B666M Identification Marking of Aluminum and Magnesium Products
ASTM E399 Linear-Elastic Plane-Strain Fracture Toughness KIc of Metallic Materials
ASTM E1304 Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic Materials
ASTM G34 Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test)
ASTM G47 Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy
Products
2.3 ANSI Accredited Publications
Copies of these documents are available online at http://webstore.ansi.org/.
ANSI H35.1/H35.1M Standard Alloy and Temper Designation System for Aluminum
ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products
ANSI H35.2M Dimensional Tolerances for Aluminum Mill Products (Metric)
3. TECHNICAL REQUIREMENTS
3.1 Composition
Shall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355.
Table 1 - Composition
Element
Max
Silicon
0.12
Iron
0.15
Copper
2.6
Manganese
0.10
Magnesium
2.6
Chromium
0.04
Zinc
6.7
Titanium
0.06
Zirconium
0.15
Other Elements, each
0.05
Other Elements, total
0.15
Aluminum
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SAE INTERNATIONAL AMS4201™G Page 3 of 6
3.2 Condition
Solution heat treated, stretched to produce a nominal permanent set of 2%, but not less than 1-1/2% nor more than 3%,
and precipitation heat treated to the -T7651 temper (refer to ANSI H35.1/H35.1M) in accordance with AMS2772.
3.2.1 Plate shall receive no further straightening operations after stretching.
3.3 Properties
Plate shall conform to the following requirements, determined on the mill product in accordance with AMS2355, except as
specified in 3.3.6.
3.3.1 Tensile Properties
Shall be as specified in Table 2, when tested in accordance with ASTM B557.
Table 2A - Minimum tensile properties, inch/pound units
Nominal
Thickness
Inches
Specimen
Orientation
Tensile
Strength
ksi
Yield Strength
at 0.2% Offset
ksi
Elongation in
2 Inches or 4D
%
0.250 to 1.000, incl
Longitudinal
76.0
66.0
9
Long-Trans.
76.0
66.0
8
Over 1.000 to 1.500, incl
Longitudinal
77.0
67.0
9
Long-Trans.
77.0
67.0
8
Over 1.500 to 2.000, incl
Longitudinal
76.0
66.0
9
Long-Trans.
76.0
66.0
8
Over 2.000 to 3.000, incl
Longitudinal
76.0
66.0
8
Long-Trans.
76.0
66.0
7
Short-Trans.
70.0
60.0
1.5
Table 2B - Minimum tensile properties, SI units
Nominal
Thickness
Millimeters
Specimen
Orientation
Tensile
Strength
MPa
Yield Strength
at 0.2% Offset
MPa
Elongation in
50.8 mm or 4D
%
Elongation in
50.8 mm or 5D
%
6.35 to 25.40, incl
Longitudinal
524
455
9
8
Long-Trans.
524
455
8
7
Over 25.40 to 38.10, incl
Longitudinal
531
462
9
8
Long-Trans.
531
462
8
7
Over 38.10 to 50.80, incl
Longitudinal
524
455
9
8
Long-Trans.
524
455
8
7
Over 50.80 to 76.20, incl
Longitudinal
524
455
8
7
Long-Trans.
524
455
7
6
Short-Trans.
483
414
1.5
1.5
3.3.1.1 Mechanical property requirements for product outside the range covered by 1.1 shall be agreed upon between
purchaser and producer.
3.3.2 Corrosion Resistance Indicator Test
Resistance to stress-corrosion cracking and to exfoliation corrosion shall be acceptable if the plate conforms to the
requirements of 3.3.2.1, 3.3.2.2, and 3.3.2.3.
3.3.2.1 Electrical Conductivity (EC)
Shall be not lower than 37.0% IACS (International Annealed Copper Standard) (21.5 MS/m), determined on the surface of
the long-transverse tensile specimen.
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作者：Carl 分类：国外协会 价格：25星币 属性：6 页 大小：185.05KB 格式：PDF 时间：2024-09-07

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