1、AEROSPACE MATERIAL SPECIFICATION AMS2242 REV. G Issued 1945-10 Revised 2008-06 Reaffirmed 2014-12 Superseding AMS2242F Tolerances Corrosion and Heat Resistant Steel, Iron Alloy, Titanium. And Titanium Alloy Sheet, Strip, and Plate RATIONALE AMS2242G has been reaffirmed to comply with the SAE five-ye
2、ar review policy. _ 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 infringe
3、ment arising therefrom, 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 2014 SAE International All rights reserved.
4、 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. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) T
5、el: +1 724-776-4970 (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/AMS2242G 1. SCOPE This specification covers established manufac
6、turing tolerances applicable to sheet, strip, and plate of corrosion and heat resistant steels, iron alloys, titanium, and titanium alloys ordered to inch dimensions. These tolerances apply to all conditions, unless otherwise noted. The term “excl” is used to apply only to the higher figure of the s
7、pecified range. 2. THICKNESS Thickness for sheet and strip is measured at any place on widths less than 1 inch, at any place 0.375 inch and over from an edge on widths 1 inch and over, and for plate at least 0.375 inch but not over 3 inches from an edge. 2.1 Sheet Table 1 includes crown tolerances.
8、TABLE 1 Specified Thickness Inch Thickness Tolerance, Inch Plus and Minus For Width Ranges Shown Inches 24 to 48 incl Thickness Tolerance, Inch Plus and Minus For Width Ranges Shown Inches Over 48 Up to 0.005, incl 0.001 - Over 0.005 to 0.007, incl 0.0015 - Over 0.007 to 0.016, incl 0.002 - Over 0.0
9、16 to 0.026, incl 0.003 0.003 Over 0.026 to 0.040, incl 0.004 0.004 Over 0.040 to 0.058, incl 0.004 0.005 Over 0.058 to 0.072, incl 0.005 0.006 Over 0.072 to 0.083, incl 0.005 0.007 Over 0.083 to 0.098, incl 0.006 0.008 Over 0.098 to 0.114, incl 0.007 0.009 Over 0.114 to 0.130, incl 0.008 0.010 Over
10、 0.130 to 0.145, incl 0.010 0.012 Over 0.145 to 0.1875, excl 0.012 0.014 2.2 Strip Table 2 includes crown tolerances. TABLE 2 Specified Thickness Inch Thickness Tolerance Inch Plus and Minus For Width Ranges ShownInches 3/16 to 6, incl Thickness Tolerance Inch Plus and Minus For Width Ranges Shown I
11、nches Over 6 to 12, incl Thickness Tolerance Inch Plus and Minus For Width Ranges ShownInches Over 12 to 24 excl 0.005 to 0.010, incl 0.10T 0.10T 0.10T Over 0.010 to 0.011, incl 0.0015 0.0015 0.0015 Over 0.011 to 0.013, incl 0.0015 0.0015 0.002 Over 0.013 to 0.017, incl 0.0015 0.002 0.002 Over 0.017
12、 to 0.020, incl 0.0015 0.002 0.0025 Over 0.020 to 0.029, incl 0.002 0.0025 0.0025 Over 0.029 to 0.035, incl 0.002 0.003 0.003 Over 0.035 to 0.050, incl 0.0025 0.0035 0.0035 Over 0.050 to 0.069, incl 0.003 0.0035 0.0035 Over 0.069 to 0.100, incl 0.003 0.004 0.005 Over 0.100 to 0.125, incl 0.004 0.004
13、5 0.005 Over 0.125 to 0.161, incl 0.0045 0.0045 0.005 Over 0.161 to 0.1875, excl 0.005 0.005 0.006 2.3 Plate Minus tolerances shall be 0.010 inch for all widths for all thicknesses up to 10.000 inches, inclusive, in all alloys; plus tolerances shall be as in Table 3. For circles, the plus thickness
14、tolerances in Table 3 apply to the diameter of the circle corresponding to the width ranges shown. For plates of irregular shape, the plus thickness tolerances apply to the greatest width corresponding to the width ranges shown. TABLE 3 Specified Thickness Inches Thickness Tolerance, Inch, Plus For
15、Width Ranges Shown Inches Over 10 to 84, incl Thickness Tolerance, Inch, Plus For Width Ranges Shown Inches Over 84 to 120, incl Thickness Tolerance, Inch, Plus For Width Ranges Shown Inches Over 120 to 144, incl Thickness Tolerance, Inch, Plus For Width Ranges ShownInches Over 144 0.1875 to 0.375,
16、excl 0.045 0.050 - - 0.375 to 0.750, excl 0.055 0.060 0.075 0.090 0.750 to 1.000, excl 0.060 0.065 0.085 0.100 1.000 to 2.000, excl 0.070 0.075 0.095 0.115 2.000 to 3.000, excl 0.125 0.150 0.175 0.200 3.000 to 4.000, excl 0.175 0.210 0.245 0.280 4.000 to 6.000, excl 0.250 0.300 0.350 0.400 6.000 to
17、8.000, excl 0.350 0.420 0.490 0.560 8.000 to 10.000, incl 0.450 0.540 0.630 - SAE INTERNATIONAL AMS2242G Page 2 of 9_ 3. WIDTH 3.1 Sheet 3.1.1 Stretcher Leveled, Resquared TABLE 4 Specified Thickness Inch Width Tolerance Inch, Plus Only For Width Ranges ShownInches 24 to 48, excl Width Tolerance Inc
18、h, Plus Only For Width Ranges ShownInches 48 and Over Up to 0.131, excl 1/16 1/8 0.131 to 0.150, incl 1/8 1/8 Over 0.150 to 0.170, incl 3/16 3/16 Over 0.170 to 0.1875, excl 1/4 1/4 3.1.2 Not Resquared, Flat or in Coils TABLE 5 Specified WidthInches Width Tolerance, InchPlus Only 24 to 48, excl 1/16
19、48 and over 1/8 3.2 Strip 3.2.1 Rolled Edge or Approximately Square Edge Produced by Rolling or Filing After Slitting TABLE 6 Specified Width Inches Specified Thickness Inch Width Tolerance, Inch Plus and Minus Up to 0.28125, incl Up to 0.0625, incl 0.005 Over 0.28125 to 0.750, incl Up to 0.09375, i
20、ncl 0.005 Over 0.750 to 5.000, incl Up to 0.125, incl 0.005 Over 5.000 to 9.000, incl 0.008 to 0.125, incl 0.010 Over 9.000 to 20.000, incl 0.015 to 0.105, incl 0.010 Over 20.000 0.023 to 0.080, incl 0.015 3.2.2 Slit Edge TABLE 7 Specified Width Inches Width Tolerance, InchPlus and Minus For Thickne
21、ss Ranges Shown Inch Up to 0.068, incl Width Tolerance, InchPlus and Minus For Thickness Ranges Shown Inch Over 0.068 to 0.099, incl Width Tolerance, Inch Plus and Minus For Thickness Ranges Shown Inch Over 0.099 to 0.160, incl Width Tolerance, InchPlus and Minus For Thickness Ranges Shown Inch Over
22、 0.160 to 0.1875, excl 0.1875 to 0.500, incl 0.005 0.008 0.010 - Over 0.500 to 6.000, incl 0.005 0.008 0.010 0.016 Over 6.000 to 9.000, incl 0.005 0.010 0.016 0.020 Over 9.000 to 12.000, incl 0.010 0.010 0.016 0.020 Over 12.000 to 20.000, incl 0.016 0.016 0.020 0.031 Over 20.000 to 24.000, incl 0.02
23、0 0.020 0.020 0.031 SAE INTERNATIONAL AMS2242G Page 3 of 9_ 3.3 Plate Minus tolerance shall be 1/4 inch for all widths and lengths in all thicknesses; plus tolerances shall be as shown in Table 8. TABLE 8 Specified Width Inches Specified Length Inches Width Tolerance, Inches Plus For Thickness Range
24、s Shown Inch 3/16 to 3/8 excl Width Tolerance, Inches Plus For Thickness Ranges Shown Inch 3/8 to 1/2 incl Width Tolerance, Inches Plus For Thickness Ranges Shown Inches Over 1/2 to 1 incl Width Tolerance, Inches Plus For Thickness Ranges Shown Inches Over 1 Up to 48, incl 1/8 3/16 5/16 7/16 Over 48
25、 to 60, incl 3/16 1/4 3/8 1/2 Over 60 to 84, incl Up to 144 incl 1/4 5/16 7/16 9/16 Over 84 to 108, incl 5/16 3/8 1/2 5/8 Over 108 3/8 7/16 5/8 3/4 Up to 48, incl 3/16 1/4 5/16 7/16 Over 48 to 60, incl 1/4 5/16 3/8 1/2 Over 60 to 84, incl 3/8 7/16 1/2 5/8 Over 84 to 108, incl Over 144 to 240 incl 7/
26、16 1/2 5/8 3/4 Over 108 1/2 5/8 11/16 13/16 Up to 48, incl 1/4 5/16 3/8 1/2 Over 48 to 60, incl 5/16 3/8 1/2 5/8 Over 60 to 84, incl 7/16 1/2 5/8 3/4 Over 84 to 108, incl Over 240 to 360 incl 9/16 5/8 3/4 7/8 Over 108 5/8 11/16 7/8 1 Up to 60, incl 7/16 1/2 5/8 3/4 Over 60 to 84, incl 1/2 5/8 3/4 7/
27、8 Over 84 to 108, incl 9/16 3/4 7/8 1 Over 108 Over 360 to 480, incl 3/4 7/8 1 1-1/8 Up to 60, incl 7/16 1/2 5/8 3/4 Over 60 to 84, incl 1/2 5/8 3/4 7/8 Over 84 to 108, incl 5/8 3/4 7/8 1 Over 108 Over 480 to 600, incl 3/4 7/8 1 1-1/8 Up to 60, incl 1/2 5/8 3/4 7/8 Over 60 to 108, incl Over 600 5/8
28、3/4 7/8 1 Over 108 7/8 1 1-1/8 1-1/4 4. LENGTH 4.1 Sheet 4.1.1 Stretcher Leveled, Resquared TABLE 9 Specified Thickness Inch Specified LengthInches Length Tolerance Inch Plus Only Up to 0.131, incl Up to 120, excl 1/16 Up to 0.131, excl 120 and over 1/8 0.131 to 0.150, incl All 1/8 Over 0.150 to 0.1
29、70, incl All 3/16 Over 0.170 to 0.1875, excl All 1/4 SAE INTERNATIONAL AMS2242G Page 4 of 9_ 4.1.2 Not Resquared TABLE 10 Specified Length Inches Length Tolerance,Inch Plus Only Up to 120, incl 1/4 Over 120 to 240, incl 1/2 4.2 Strip TABLE 11 Specified Length Inches Length Tolerance,Inch Plus Only U
30、p to 60, incl 3/8 Over 60 to 120, incl 1/2 Over 120 to 240, incl 5/8 4.3 Plate Minus tolerances shall be 1/4 inch for all lengths and widths in all thicknesses; plus tolerances shall be as shown in Table 12. TABLE 12 Specified Width Inches Specified Length Inches Length Tolerance, Inches Plus For Th
31、ickness Ranges Shown Inch 3/16 to 3/8 excl Length Tolerance, Inches Plus For Thickness Ranges Shown Inch 3/8 to 1/2 incl Length Tolerance, Inches Plus For Thickness Ranges Shown Inch Over 1/2 to 1 incl Length Tolerance, Inches Plus For Thickness Ranges Shown Inch Over 1 Up to 48, incl 3/16 1/4 3/8 1
32、/2 Over 48 to 60, incl 1/4 5/16 7/16 9/16 Over 60 to 84, incl Up to 144, incl 5/16 3/8 1/2 5/8 Over 84 to 108, incl 3/8 7/16 9/16 11/16 Over 108 7/16 1/2 11/16 13/16 Up to 48, incl 3/8 1/2 5/8 3/4 Over 48 to 60, incl 7/16 5/8 3/4 7/8 Over 60 to 84, incl 1/2 11/16 3/4 7/8 Over 84 to 108, incl Over 14
33、4 to 240, incl 9/16 3/4 7/8 1 Over 108 5/8 7/8 1 1-1/8 Up to 48, incl 1/2 5/8 3/4 7/8 Over 48 to 60, incl 5/8 3/4 3/4 7/8 Over 60 to 84, incl 11/16 3/4 7/8 1 Over 84 to 108, incl Over 240 to 360, incl 3/4 7/8 1 1-1/8 Over 108 7/8 1 1 1-1/8 Up to 60, incl 1-1/8 1-1/4 1-3/8 1-1/2 Over 60 to 108, incl
34、1-1/4 1-3/8 1-1/2 1-5/8 Over 108 Over 360 to 480, incl 1-3/8 1-1/2 1-5/8 1-3/4 Up to 60, incl 1-1/4 1-1/2 1-5/8 1-3/4 Over 60 to 108, incl 1-3/8 1-1/2 1-5/8 1-3/4 Over 108 Over 480 to 600, incl 1-1/2 1-5/8 1-3/4 1-7/8 Up to 108, incl 1-3/4 1-7/8 1-7/8 2 Over 108 Over 600 1-3/4 2 2-1/4 2-3/8 SAE INTE
35、RNATIONAL AMS2242G Page 5 of 9_ 5. STRAIGHTNESS 5.1 Sheet and Strip TABLE 13 Specified Width Inches Camber Tolerance, Inch, in Any 8 feet of Length Up to 1.500, incl 1/2 Over 1.500 to 24.000, excl 1/4 24.000 to 36.000, incl 1/8 Over 36.000 3/32 5.2 Plate Shall be of such straightness that the maximu
36、m edgewise curvature (depth of arc) shall not exceed 1/8 inch in any 5 feet of length. 6. FLATNESS The following tolerances do not apply to strip, dead soft sheet, or deep drawing sheet for which there are no established tolerances. In all cases, the “Variation from Flat” is the maximum deviation fr
37、om a horizontal flat surface. 6.1 Sheet, Not Stretcher Leveled The following table does not apply to cold worked tempers of austenitic grades. TABLE 14 Specified ThicknessInch Specified Width Inches Variation from Flat, Inch Up to 0.062, excl 24 to 36, incl 1/2 Over 36 to 60, incl 3/4 Over 60 1 0.06
38、2 to 0.1875, excl 24 to 60, incl 1/2 Over 60 to 72, incl 3/4 Over 72 1 6.2 Cold Worked Austenitic Sheet, 1/4 and 1/2 Hard Tempers TABLE 15 Specified Thickness Inch Specified Width Inches Variationfrom FlatInches 1/4 Hard Variation from Flat Inches 1/2 Hard Up to 0.016, incl 1/2 3/4 Over 0.016 to 0.0
39、30, incl 24 to 36, excl 5/8 7/8 Over 0.030 to 0.1875, excl 3/4 7/8 Up to 0.016, incl 5/8 1 Over 0.016 to 0.030, incl 36 to 48, incl 3/4 1-1/8 Over 0.030 to 0.1875, excl 1 1-1/8 SAE INTERNATIONAL AMS2242G Page 6 of 9_ 6.3 Sheet, Stretcher Leveled TABLE 16 Specified WidthInches Specified LengthInches
40、Variation From Flat,Inch 24 to 48, incl Up to 96, incl 1/8 Over 96 1/4 Over 48 All 1/4 6.4 Plate The requirements of Table 17 apply to plate up to 15 feet, inclusive, in length, or to any 15 feet of longer plates. If the longer dimension is under 3 feet, the variation from flat shall be not greater
41、than 1/4 inch in any direction. 6.4.1 Titanium plate, when specified to have “Special Flatness”, shall be creep flattened in a stress-free condition with deviation from flat not exceeding 0.060 inch in any 12 inches, with total deviation not exceeding 0.125 inch. SAE INTERNATIONAL AMS2242G Page 7 of
42、 9_ TABLE 17 Specified Thickness Inches Variation from Flat Inches For Width Ranges Shown Inches Up to 48, incl Variation from Flat Inches For Width Ranges ShownInches Over 48 to 60, excl Variation from Flat Inches For Width Ranges ShownInches 60 to 72, excl Variation from Flat Inches For Width Rang
43、es ShownInches 72 to 84, excl Variation from Flat Inches For Width Ranges Shown Inches 84 to 96, excl Variation from Flat Inches For Width Ranges Shown Inches 96 to 108, excl Variation from Flat Inches For Width Ranges ShownInches 108 to 120, excl Variation from Flat Inches For Width Ranges ShownInc
44、hes 120 to 144, excl Variation from Flat Inches For Width Ranges Shown Inches 144 and over 0.1875 to 0.250, excl 3/4 1-1/16 1-1/4 1-3/8 1-5/8 1-5/8 1-7/8 2 - 0.250 to 0.375, excl 11/16 3/4 15/16 1-1/8 1-3/8 1-7/16 1-9/16 1-7/8 - 0.375 to 0.500, excl 1/2 9/16 11/16 3/4 15/16 1-1/8 1-1/4 1-7/16 1-3/4
45、0.500 to 0.750, excl 1/2 9/16 5/8 5/8 13/16 1-1/8 1-1/8 1-1/8 1-3/8 0.750 to 1.000, excl 1/2 9/16 5/8 5/8 3/4 13/16 15/16 1 1-1/8 1.000 to 1.500, excl 1/2 9/16 9/16 9/16 11/16 11/16 11/16 3/4 1 1.500 to 4.000, excl 3/16 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 4.000 to 6.000, excl 1/4 3/8 1/2 9/16 5/8 3/4
46、 7/8 1 1-1/8 SAE INTERNATIONAL AMS2242G Page 8 of 9_ 7. NOTES 7.1 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 (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. 7.2 Te
