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SASAerospace
AnSAEIntemationa/Group
AEROSPACE
MATERIAL
SPECIFICATION
SAEAMS2242G
Issued
ReaffirmedRevised
1945-10
2006-04
2008-06
SupersedingAMS2242F
Tolerances
CorrosionandHeatResistantSteel,IronAlloy,
Titanium,andTitaniumAlloySheet,Strip,andPlate
RATIONALE
AMS2242GresultsfromaFiveYearReviewandupdateofthisspecificationandaddslengthandwidthtolerancesforplateover1inchinthickness.
1.SCOPE
Thisspecificationcoversestablishedmanufacturingtolerancesapplicabletosheet,strip,andplateofcorrosionandheatresistantsteels,ironalloys,titanium,andtitaniumalloysorderedtoinchdimensions.Thesetolerancesapplytoallconditions,unlessotherwisenoted.Theterm"excl"isusedtoapplyonlytothehigherfigureofthespecifiedrange.
2.THICKNESS
Thicknessforsheetandstripismeasuredatanyplaceonwidthslessthan1inch,atanyplace0.375inchandoverfromanedgeonwidths1inchandover,andforplateatleast0.375inchbutnotover3inchesfromanedge.
2.1Sheet
Table1includescrowntolerances.
TABLE1
SpecifiedThicknessInch
ThicknessTolerance,Inch
PlusandMinus
ForWidthRangesShown
Inches
24to48incl
ThicknessTolerance,Inch
PlusandMinus
ForWidthRangesShown
Inches
Over48
Upto0.005,incl
0.001
Over0.005to0.007,incl
0.0015
Over0.007to0016,incl
0.002
Over0.016to0.026,incl
0.003
0.003
Over0.026to0.040,incl
0.004
0.004
Over0.040to0.058,incl
0.004
0.005
Over0.058to0.072,incl
0.005
0.006
Over0.072to0083,incl
0.005
0.007
Over0.083to0.098,incl
0.006
0.008
Over0.098to0.114,incl
0.007
0.009
Over0.114to0130,incl
0.008
0.010
Over0.130to0145,incl
0.010
0.012
Over0.145to01875,excl
0.012
0.014
SAETechnicalStandardsBoardRulesprovidethat:ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser."
SAErevlewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copynght◎2008SAEInternational
Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying.recording,orotherwise,withoutthepriorwrittenpermissionofSAE.
TOPLACEADOCUMENTORDER:Tel:877-606-7323(insideUSAandCanada)
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Fax:724-776-0790
Email:CustomerService@
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SAEAMS2242G—2—
2.2Strip
Table2includescrowntolerances.
TABLE2
ThicknessTolerance
ThicknessTolerance
ThicknessTolerance
Inch
Inch
Inch
PlusandMinus
PlusandMinus
PlusandMinus
ForWidthRangesShown
ForWidthRangesShown
ForWidthRangesShown
Inches
Inches
Inches
3/16to
Over6
Over12
SpecifiedThickness6.
to12,
to24
Inchincl
incl
excl
0.005to0010,incl010T
010T
010T
Over0.010to0.011,inc0.0015
0.0015
0.0015
Over0.011to0.013,incl0.0015
0.0015
0.002
Over0.013to0017,incl0.0015
0.002
0.002
Over0.017to0.020,incl0.0015
0.002
0.0025
Over0.020to0.029,incl0.002
0.0025
0.0025
Over0.029to0.035,incl0.002
0.003
0.003
Over0.035to0.050,incl0.0025
0.0035
0.0035
Over0.050to0.069,incl0.003
0.0035
0.0035
Over0.069to0100,incl0.003
0.004
0.005
Over0.100to0.125,incl0.004
0.0045
0.005
Over0.125to0.161,incl0.0045
0.0045
0.005
Over0.161to0.1875,exc0.005
0.005
0.006
2.3Plate
Minustolerancesshallbe0.010inchforallwidthsforallthicknessesupto10.000inches,inclusive,inallalloys;plustolerancesshallbeasinTable3.Forcircles,theplusthicknesstolerancesinTable3applytothediameterofthecirclecorrespondingtothewidthrangesshown.Forplatesofirregularshape,theplusthicknesstolerancesapplytothegreatestwidthcorrespondingtothewidthrangesshown.
TABLE3
ThicknessTolerance
ThicknessTolerance,
ThicknessTolerance,
Inch,Plus
Inch,Plus
Inch,Plus
ForWidthRangesShown
ForWidthRangesShown
ForWidthRangesShown
ThicknessTolerance,
Inches
Inches
Inches
Inch,Plus
Over10
Over84
Over120
ForWidthRangesShown
SpecifiedThicknessInches
to84,
incl
to120,
ncl
to144,
incl
Inches
Over144
0.1875to0.375,exc
0.045
0.050
0.375to0750,excl
0.055
0.060
0.075
0.090
0.750to1.000,exc
0.060
0.065
0.085
0.100
1.000to2.000,excl
0.070
0.075
0.095
0.115
2.000to3.000,exc
0.125
0.150
0.175
0.200
3.000to4.000,exc
0.175
0.210
0.245
0.280
4.000to6.000,excl
0.250
0.300
0.350
0.400
6.000to8.000,excl8.000to10.000,incl
0.350
0.450
0.420
0.540
0.490
0.630
0.560
SAEAMS2242G—3—
3.WIDTH
3.1Sheet
3.1.1StretcherLeveled,Resquared
TABLE4
WidthTolerance
WidthTolerance
Inch,PlusOnly
Inch,PlusOnly
ForWidthRangesShown
ForWidthRangesShown
Inches
Inches
SpecifiedThickness
24to48,
48and
Inch
excl
Over
Upto0.131,excl
1/16
1/8
0.131to0.150,incl
1/8
1/8
Over0.150to0.170,incl
3/16
3/16
Over0.170to0.1875,excl
1/4
1/4
3.1.2NotResquared,FlatorinCoils
TABLE5
SpecifiedWidthInches
Width
Tolerance,InchPlusOnly
24to48.excl
48andover
1/16
1/8
3.2Strip
3.2.1RolledEdgeorApproximatelySquareEdgeProducedbyRollingorFilingAfterSlitting
TABLE6
SpecifiedWidth
Inches
SpecifiedThicknessInch
WidthTolerance,InchPlusandMinus
Up
to0.28125,
incl
Up
to
0.0625,
incl
0.005
Over
0.28125
to0.750,
incl
Up
to
0.09375,
incl
0.005
Over
0.750
to5.000,
incl
Up
to
0.125,
incl
0.005
Over
5.000
to9.000,
incl
0.008
to
0.125,
incl
0.010
Over
9.000
to20.000,
incl
0.015
to
0.105,
incl
0.010
Over
20.000
0.023
to
0.080,
incl
0.015
3.2.2SlitEdge
TABLE7
WidthTolerance,InchWidthTolerance,InchWidthTolerance,InchWidthTolerance,Inch
PlusandMinus
PlusandMinus
PlusandMinus
PlusandMinus
ForThickness
ForThickness
ForThickness
ForThickness
RangesShown
RangesShown
RangesShown
RangesShown
Inch
Inch
Inch
Inch
Upto
Over0.068
Over0.099
Over0.160
SpecifiedWidth
0.068,
to0.099,
to0.160,
to0.1875,
Inches
incl
incl
incl
excl
0.1875to0.500,inclOver0.500to6.000,incl
Over6.000to9.000,incl
Over9.000to12.000,inclOver12.000to20.000,inclOver20.000to24.000,incl
0.0100.0100.0160.0160.0200.020
0.0080.0080.0100.0100.0160.020
0.0160.0200.0200.0310.031
0.005
0.005
0.005
0.010
0.016
0.020
SAEAMS2242G—4—
3.3Plate
Minustoleranceshallbe1/4inchforallwidthsandlengthsinallthicknesses;plustolerancesshallbeasshowninTable8.
TABLE8
SpecifiedWidthInches
SpecifiedLengthInches
WidthTolerance,Inches
Plus
ForThickness
RangesShown
Inch
3/16to3/8
excl
WidthTolerance.Inches
Plus
ForThickness
RangesShown
Inch
3/8to1/2
incl
WidthTolerance,Inches
Plus
ForThickness
RangesShown
Inches
Over1/2to1
incl
WidthTolerance,InchesPlus
ForThickness
RangesShown
Inches
Over1
Upto48,incl
Upto
1/8
3/16
5/16
7/16
Over48to60,inc
144
3/16
1/4
3/8
1/2
Over60to84,incl
incl
1/4
5/16
7/16
9/16
Over84to108,incl
5/16
3/8
1/2
5/8
Over108
3/8
7/16
5/8
3/4
Upto48,incl
Over
3/16
1/4
5/16
7/16
Over48to60,incl
144to
1/4
5/16
3/8
1/2
Over60to84,incl
240
3/8
7/16
1/2
5/8
Over84to108,incl
incl
7/16
1/2
5/8
3/4
Over108
1/2
5/8
11/16
13/16
Upto48,incl
Over
1/4
5/16
3/8
1/2
Over48to60,incl
240to
5/16
3/8
1/2
5/8
Over60to84,incl
360
7/16
1/2
5/8
3/4
Over84to108,incl
incl
9/16
5/8
3/4
7/8
Over108
5/8
11/16
7/8
1
Upto60,incl
Qver
7/16
1/2
5/8
3/4
Over60to84,incl
360to
1/2
5/8
3/4
7/8
Over84to108,incl
480,
9/16
3/4
7/8
1
Over108
incl
3/4
7/8
1
1-1/8
Upto60,incl
Over
7/16
1/2
5/8
3/4
Over60to84,incl
480to
1/2
5/8
3/4
7/8
Over84to108,incl
600,
5/8
3/4
7/8
1
Over108
incl
3/4
7/8
1
1-1/8
Upto60,incl
Over
1/2
5/8
3/4
7/8
Over60to108,incl
600
5/8
3/4
7/8
1
Over108
7/8
1
1-1/8
1-1/4
4.LENGTH
4.1Sheet
4.1.1StretcherLeveled,Resquared
TABLE9
SpecifiedThicknessInch
SpecifiedLengthInches
LengthTolerance
Inch
PlusOnly
Upto0.131,incl
Upto120,excl
1/16
Upto0.131,excl
120andover
1/8
0.131to0.150,incl
All
1/8
Over0.150to0.170,incl
All
3/16
Over0.170to0.1875,excl
All
1/4
SAE
AMS2242G—5—
4.1.2NotResquared
TABLE10
LengthTolerance,
SpecifiedLengthInch
InchesPlusOnly
Upto120,incl1/4
Over120to240,incl1/2
4.2Strip
TABLE11
LenathTolerance
SpecifiedLengthInch
InchesPlusOnly
Upto60,incl3/8
Over60to120,incl1/2
Over120to240,incl5/8
4.3Plate
Minustolerancesshallbe1/4inchforalllengthsandwidthsinallthicknesses;plustolerancesshallbeasshownin
Table12.
TABLE12
SpecifiedWidthInches
SpecifiedLength
Inches
LengthTolerance,
Plus
ForThicknessRangesShown
Inch
3/16to3/8
excl
Inches
LengthTolerance,Inches
Plus
ForThickness
RangesShown
Inch
3/8to1/2
incl
LengthTolerance,Inches
Plus
ForThickness
RangesShown
Inch
Over1/2to1
incl
LengthTolerance,Inches
Plus
ForThickness
RangesShown
Inch
Over1
Upto48,incl
Over48to60,indl
Upto
144,
3/16
1/4
1/4
5/16
3/8
7/16
1/2
9/16
Over60to84,incl
incl
5/16
3/8
1/2
5/8
Over84to108,incl
3/8
7/16
9/16
11/16
Over108
7/16
1/2
11/16
13/16
Upto48,incl
Over
3/8
1/2
5/8
3/4
Over48to60,incl
144to
7/16
5/8
3/4
7/8
Over60to84,incl
240,
1/2
11/16
3/4
7/8
Over84to108,incl
incl
9/16
3/4
7/8
1
Over108
5/8
7/8
1
1-1/8
Upto48,incl
Over
1/2
5/8
3/4
7/8
Over48to60,incl
240to
5/8
3/4
3/4
7/8
Over60to84.incl
360,
11/16
3/4
7/8
1
Over84to108,incl
incl
3/4
7/8
1
1-1/8
Over108
7/8
1
1
1-1/8
Upto60,incl
Over
1-1/8
1-1/4
1-3/8
1-1/2
Over60to108,incl
360to
1-1/4
1-3/8
1-1/2
1-5/8
Over108
480,
1-3/8
1-1/2
1-5/8
1-3/4
incl
Upto60,incl
Over
1-1/4
1-1/2
1-5/8
1-3/4
Over60to108,incl
480to
1-3/8
1-1/2
1-5/8
1-3/4
Over108
600,
1-1/2
1-5/8
1-3/4
1-7/8
incl
Upto108,inclOver108
Over
600
1-3/41-3/4
1-7/8
2
1-7/8
2-1/4
2
2-3/8
SAE
AMS
2242G—6—
5.STRAIGHTNESS
5.1SheetandStrip
TABLE13
SpecifiedWidthCamberTolerance,Inch,
InchesinAny8feetofLength
Upto1.500,incl1/2
Over1.500to24.000,excl1/4
24.000to36.000,incl1/8
Over36.0003/32
5.2Plate
Shallbeofsuchstraightnessthatthemaximumedgewisecurvature(depthofarc)shallnotexceed1/8inchinany5feetoflength.
6.FLATNESS
Thefollowingtolerancesdonotapplytostrip,deadsoftsheet,ordeepdrawingsheetforwhichtherearenoestablishedtolerances.Inallcases,the"VariationfromFlat"isthemaximumdeviationfromahorizontalflatsurface.
6.1Sheet,NotStretcherLeveled
Thefollowingtabledoesnotapplytocoldworkedtempersofausteniticgrades.
TABLE14
Variation
SpecifiedThickness
SpecifiedWidth
fromFlat,
Inch
Inches
Inch
Upto0.062,excl
24to36,inclOver36to60,inclOver60
1/2
3/4
1
0.062to0.1875,excl
24to60,inclOver60to72,inclOver72
1/2
3/4
1
6.2ColdWorkedAusteniticSheet,1/4and1/2HardTempers
TABLE15
Variation
Variation
fromFlat
fromFlat
SpecifiedThickness
SpecifiedWidth
Inches
Inches
Inch
Inches
1/4Hard
1/2Hard
Upto0.016,incl
24to36,excl
1/2
3/4
Over0.016to0030,incl
5/8
7/8
Over0.030to0.1875,excl
3/4
7/8
Upto0.016,incl
36to48,incl
5/8
1
Over0.016to0030,incl
3/4
1-1/8
Over0.030to0.1875,excl
1-1/8
SAE
AMS2242G—7—
6.3Sheet,StretcherLeveled
TABLE16
Variation
SpecifiedWidthSpecifiedLengthFromFlat,
InchesInchesInch
24to48,inclUpto96,incl1/8
Over961/4
Over48All1/4
6.4Plate
TherequirementsofTable17applytoplateupto15feet,inclusive,inlength,ortoany15feetoflongerplates.Ifthelongerdimensionisunder3feet,thevariationfromflatshallbenotgreaterthan1/4inchinanydirection.
6.4.1Titaniumplate,whenspecifiedtohave"SpecialFlatness",shallbecreepflattenedinastress-freeconditionwithdeviationfromflatnotexceeding0.060inchinany12inches,withtotaldeviationnotexceeding0.125inch.
SAE
1:
22426
-8-
TABLE17
VariationfromVariationfromVariationfromVariationfromVariationfromVariationfromVariationfromVariationfromVariationfrom
FlatInchesFlatInchesFlatInchesFlatInchesFlatInchesFlatInchesFlatInchesFlatInchesFlatInches
ForWidthForWidthForWidthForWidthForWidthForWidthForWidthForWidthForWidth
RangesShownRangesShownRangesShownRangesShownRangesShownRangesShownRangesShownRangesShownRangesShown
nchesInchesnchesInchesInchesnchesInchesInchesnches
UptoOver4860to72to84to96to108to120to144
SpecifiedThickness48,to60,72,84,96,108,120144,and
Inchesinclexclexclexclexelexclexclexclover
0.1875to0.250,exc3/41-1/161-1/41.3/81-5/81-5/81-7/82
0.250to0.375,exc11/163/415/161-1/81-3/81-7/161-9/161-7/8
0.375to0.500.excl1/29/1611/163/415/161-1/81-1/41-7/161-3/4
0.500to0.750.excl1/29/165/85/813/161-1/81-1/81-1/81-3/8
0.
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