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    SAE AMS 2231K-2015 Tolerances Carbon Steel Bars.pdf

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    SAE AMS 2231K-2015 Tolerances Carbon Steel Bars.pdf

    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 theref

    2、rom, 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 2015 SAE InternationalAll rights reserved. No part of this publi

    3、cation 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: +1 724-776-4970 (out

    4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS2231KAEROSPACEMATERIAL SPECIFICATIONAMS2231 REV. KIssued 1945-05Reaffirmed 2008-04Revised

    5、2015-07Superseding AMS2231JTolerancesCarbon Steel BarsRATIONALEAMS2231K results from a Five Year Review and update.1. SCOPEThis specification covers established inch/pound manufacturing tolerances applicable to carbon steel bars ordered to inch/pound dimensions. These tolerances apply to all conditi

    6、ons, unless otherwise noted. The term “excl” applies only to the higher figure of the specified range.1.1 No clear cut demarcation is available to differentiate between bar and wire products, therefore definitions of wire products are not included.2. DIAMETER OR THICKNESS2.1 Cold Finished2.1.1 Cold

    7、DrawnTable 1 includes tolerances for bars thathave been annealed, spheroidize annealed, normalized, normalized and tempered, or quenched and tempered before cold finishing. This table does not include tolerances for bars that, after cold finishing, are spheroidize annealed, normalized, normalized an

    8、d tempered, or quenched and tempered.2.1.1.1 Width governs the tolerances for both width and thickness of flats. For example, when the maximum carbon range is up to 0.28%, inclusive, for a flat 2.000 inch wide and 1.000 inch thick, the width tolerance is 0.005 inch and the thickness tolerance is the

    9、 same, namely, 0.005 inch.SAE INTERNATIONAL AMS2231K Page 2 of 5TABLE 1 Diameter, Thickness, or Width Tolerances, Inch, Minus Only for Maximum of Carbon Range, %Table 1A RoundsSpecified DiameterInchesUp to0.28 Carbon,inclOver 0.28to 0.55 Carbon,inclUp to 0.55 Carbon,incl, StressRelieved orAnnealed A

    10、fterCold FinishingOver 0.55 Carbon,With or Without StressRelieving or AnnealingAfter Cold Finishing,and All CarbonsQuenched and Temperedor Normalized andTempered Before ColdFinishingUp to 1.500, incl 0.002 0.003 0.004 0.005Over 1.500 to 2.500, incl 0.003 0.004 0.005 0.006Over 2.500 to 4.000, incl 0.

    11、004 0.005 0.006 0.007Table 1 B HexagonsSpecified ThicknessInchesUp to0.28 Carbon,inclOver 0.28to 0.55 Carbon,inclUp to 0.55 Carbon,incl, StressRelieved orAnnealed AfterCold FinishingOver 0.55 Carbon,With or Without StressRelieving or AnnealingAfter Cold Finishing,and All CarbonsQuenched and Tempered

    12、or Normalized andTempered Before ColdFinishingUp to 0.750, incl 0.002 0.003 0.004 0.006Over 0.750 to 1.500, incl 0.003 0.004 0.005 0.007Over 1.500 to 2.500, incl 0.004 0.005 0.006 0.008Over 2.500 to 3.125, incl 0.005 0.006 0.007 0.009Over 3.125 to 4.000, incl 0.005 0.008 - -Table 1C Squares and flat

    13、s Specified Thickness orWidthInchesUp to0.28 Carbon,inclOver 0.28to 0.55 Carbon,inclUp to 0.55 Carbon,incl, StressRelieved orAnnealed AfterCold FinishingOver 0.55 Carbon,With or Without StressRelieving or AnnealingAfter Cold Finishing,and All CarbonsQuenched and Temperedor Normalized andTempered Bef

    14、ore ColdFinishingUp to 0.750, incl 0.003 0.004 0.006 0.008Over 0.750 to 1.500, incl 0.004 0.005 0.008 0.010Over 1.500 to 3.000, incl 0.005 0.006 0.010 0.012Over 3.000 to 4.000, incl 0.006 0.008 0.011 0.016Over 4.000 to 6.000, incl 0.008 0.010 0.012 0.020Over 6.000 0.013 0.015 - -2.1.2 Turned and Pol

    15、ished RoundsTable 2 includes tolerances for bars that, before cold finishing, have been annealed, spheroidize annealed, normalized, normalized and tempered, or quenched and tempered. This table does not include tolerances for bars that, after cold finishing, are spheroidize annealed, normalized, nor

    16、malized and tempered, or quenched and tempered.SAE INTERNATIONAL AMS2231K Page 3 of 5Table 2 Diameter tolerances, inch, minus only for maximum of carbon range, %Specified DiameterInchesUp to0.28 Carbon,inclOver 0.28to 0.55 Carbon,inclUp to 0.55 Carbon,incl, StressRelieved orAnnealed AfterCold Finish

    17、ingOver 0.55 Carbon,With or Without StressRelieving or AnnealingAfter Cold Finishing,and All CarbonsQuenched and Temperedor Normalized andTempered Before ColdFinishingUp to 1.500, incl 0.002 0.003 0.004 0.005Over 1.500 to 2.500, incl 0.003 0.004 0.005 0.006Over 2.500 to 4.000, incl 0.004 0.005 0.006

    18、 0.007Over 4.000 to 6.000, incl 0.005 0.006 0.007 0.008Over 6.000 to 8.000, incl 0.006 0.007 0.008 0.009Over 8.000 to 9.000, incl 0.007 0.008 0.009 0.010Over 9.000 0.008 0.009 0.010 0.0112.1.3 Cold Drawn, Ground, and Polished RoundsSee Table 3.Table 3 Diameter tolerancesSpecified DiameterInchesToler

    19、ance, InchMinus OnlyUp to 1.500, incl 0.001Over 1.500 to 2.500, excl 0.00152.500 to 3.000, incl 0.002Over 3.000 to 4.000, incl 0.0032.1.4 Turned, Ground, and Polished RoundsSee Table 4.Table 4 Diameter tolerancesSpecified DiameterInchesTolerance, InchMinus OnlyUp to 1.500, incl 0.001Over 1.500 to 2.

    20、500, excl 0.00152.500 to 3.000, incl 0.002Over 3.000 to 4.000, incl 0.003Over 4.000 to 6.000, incl 0.004 (See 2.1.4.1)Over 6.000 0.005 (See 2.1.4.1)2.1.4.1 For nonresulfurized steels (steels specified to maximum sulfur limits under 0.08%) or for steels thermally treated, the tolerances for sizes ove

    21、r 4.000 inches in specified diameter are increased by 0.001 inch.2.2 Hot Finished2.2.1 Rounds and SquaresSee Table 5. Out-of-round is the difference between maximum and minimum diameters of the bar, measured at the same cross section. Out-of-square section is the difference in the two dimensions at

    22、the same cross section of a square bar between opposite faces.SAE INTERNATIONAL AMS2231K Page 4 of 5Table 5 - Diameter or thickness tolerancesSpecifiedDiameter or ThicknessInchesTolerance, InchPlusTolerance, InchMinusOut-of-Roundor Out-of-SquareInchUp to 0.3125, incl 0.005 0.005 0.008Over 0.3125 to

    23、0.4375, incl 0.006 0.006 0.009Over 0.4375 to 0.625, incl 0.007 0.007 0.010Over 0.625 to 0.875, incl 0.008 0.008 0.012Over 0.875 to 1.000, incl 0.009 0.009 0.013Over 1 .000 to 1.125, incl 0.010 0.010 0.015Over 1.125 to 1.250, incl 0.011 0.011 0.016Over 1.250 to 1.375, incl 0.012 0.012 0.018Over 1.375

    24、 to 1.500, incl 0.014 0.014 0.021Over 1.500 to 2.000, incl 0.016 0.016 0.023Over 2.000 to 2.500, incl 0.031 0 0.023Over 2.500 to 3.500, incl 0.047 0 0.035Over 3.500 to 4.500, incl 0.063 0 0.046Over 4.500 to 5.500, incl 0.078 0 0.058Over 5.500 to 6.500, incl 0.125 0 0.070Over 6.500 to 8.250, incl 0.1

    25、56 0 0.085Over 8.250 to 9.500, incl 0.188 0 0.100Over 9.500 to 10.000, incl 0.250 0 0.1202.2.2 Square-Edge and Round-Edge FlatsSee Table 6 and Table 7.Table 6 Thickness tolerance, inch, plus and minus for thickness ranges, inchSpecified WidthInches0.203to0.230,excl0.230to0.250,excl0.250to0.500,inclO

    26、ver0.500to1.000,inclOver1.000to2.000,inclOver2.000to3.000,inclOver3.000Up to 1.000, incl 0.007 0.007 0.008 0.010 - - -Over 1.000 to 2.000, incl 0.007 0.007 0.012 0.015 0.031 - -Over 2.000 to 4.000, incl 0.008 0.008 0.015 0.020 0.031 0.047 0.047Over 4.000 to 6.000, incl 0.009 0.009 0.015 0.020 0.031

    27、0.047 0.047Over 6.000 to 8.000, incl - 0.015 0.016 0.025 0.031 0.047 -Table 7 - Width toleranceSpecified WidthInchesToleranceInch, PlusToleranceInch, MinusUp to 1.000, incl 0.016 0.016Over 1.000 to 2.000, incl 0.031 0.031Over 2.000 to 4.000, incl 0.063 0.031Over 4.000 to 6.000, incl 0.094 0.063Over

    28、6.000 to 8.000, incl 0.125 0.0943. WIDTHIncluded in Section 2.4. LENGTHNo requirements for AMS.SAE INTERNATIONAL AMS2231K Page 5 of 55. STRAIGHTNESS5.1 Cold FinishedStraightness shall be as shown in Table 8. Table 8 Maximum deviation from straightness in 10 foot length Size, inch Length, feetCarbon

    29、0.28%or LessRoundsCarbon Over0.28%Squares,Hexagons andOctagonsCarbon 0.28%or LessRoundsCarbon Over0.28%Squares,Hexagons andOctagonsLess than 0.625 Less than 15 0.125 0.188 0.188 0.250Less than 0.625 15 and Over 0.125 0.188 0.313 0.3750.625 and Over Less than 15 0.063 0.125 0.125 0.1880.625 and Over

    30、15 and Over 0.125 0.188 0.188 0.2505.2 Hot FinishedRequirements may be specified by purchaser.6. FLATNESSRrequirements may be specified by purchaser.7. SPECIAL TOLERANCESThe requirements shown in Table 9 apply to cold finished hexagons when so specified on the purchase order.Table 9 - Hexagon tolera

    31、ncesSpecifiedThicknessInchesDistanceAcrossCornersInches, minSpecifiedThicknessInchesDistanceAcrossComersInches, minSpecifiedThicknessInchesDistanceAcrossCornersInches, min0.1875 0.210 0.500 0.564 0.750 0.8480.2188 0.245 0.5625 0.635 0.8125 0.9190.250 0.280 0.5938 0.670 0.875 0.9900.3125 0.351 0.625

    32、0.706 0.9375 1.0620.375 0.423 0.6875 0.775 1.000 1.1330.4375 0.492 1.0625 1.2038. NOTES8.1 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)

    33、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 ARP 1917.PREPARED BY AMS COMMITTEE “E”


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