GMWORLDWIDEENGINEERINGSTANDARDS GMW16607

?Copyright2017GeneralMotorsCompanyAllRightsReserved

January2017 Page

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GeneralMotorsCompany

ProvidedbyIHSunderlicensewithGeneralMotorsCompany

NoreproductionexnetworkingpermittedwithoutlicensefromIHS

Licensee-ZHEJIANGINSTOFSTANDARDIZATION5956617

NotforResale.2017/32301:04:02

?Copyright2017GeneralMotorsCompanyAllRightsReserved

January2017 Page

#

of5

Licensee-ZHEJIANGINSTOFSTANDARDIZATION5956617

NotforResale.2017/32301:04:02

GeneralMotorsCompany

ProvidedbyIHSunderlicensewithGeneralMotorsCompany

NoreproductionornetworkingpermittedwithoutlicensefromIHS

GM

WORLDWIDEENGINEERINGSTANDARDS

MaterialSpecification

GMW16607

PolypropyleneHomopolymer一GlassFiberReinforced,

ChemicallyCoupled,HeatStabilized

Scope

MaterialDescription.Thisspecificationcoversthepropertiesofinjectionmoldable,glassfiberreinforced,chemicallycoupled,heatstabilizedpolypropylenehomopolymer.

Symbols.ThematerialabbreviationsaccordingtoISO11469areshowninTable1.

Applicability.Typicalapplicationsincludefanshrouds,underhoodparts,andbrackets.

Remarks.Theclassificationintogroupsisaccordingtothedifferentrangesofglassfibercontent.

References

Note:Onlythelatestapprovedstandardsareapplicableunlessotherwisespecified.

ExternalStandards/Specifications.

ISO75-1

ISO294

ISO1183

ISO11359-1

ISO75-2

ISO294-4

ISO1873-2

ISO11359-2

ISO75-3

ISO527-1

ISO3167

ISO11469

ISO179/1eA

ISO527-2

ISO3451-1

ISO188

ISO1133

ISO4577

2.2GMStandards/Specifications.

GMW3013

GMW3221

GMW14270

GMW16853

GMW3059

GMW3232

GMW14444

GMW3205

GMW3235

GMW15634

Requirements

MaterialsapprovedtothisspecificationshallmeettherequirementsofGMW3013,GeneralRequirementsforHandlingofTechnicalTermsofDeliveryforPlastics.

RequirementsonDelivery.Importantphysical,mechanical,andthermalpropertiesthatcharacterizethematerialaresummarizedinTable1.

Note:Foreachproduct,therequirementstoTable1shallbedocumentedbycertificationstatementaccordingtoGMW3013.Thecolorshallbespecifiedondrawings,inmaterialspecificationsandotherwise.

RequirementsonTestSpecimens.

Unlessotherwisespecified,injectionmoldingoftestspecimensshallbeaccomplishedperISO294withtheconditionsforinjectionmoldingfromISO1873-2.TestmethodsandspecimendimensionsarealsotobeinaccordancewithISO1873-2.TestmethodsandspecimendimensionsarealsotobeinaccordancewithISO1873-2withthefollowingadditions:

?UseISO3167,TypeA,thickness4mm,fortensileandflexuralproperties.

Alltestsshallbeperformedonspecimens40hminimumaftermoldingandimmediatelyfollowingaconditioningperiodof24hminimuminacontrolledatmosphereperGMW3221,CodeA,unlessotherwisespecified.Alltestsshallbeperformedonunannealedspecimens.Inaddition,testspecifiedattemperaturesbeloworabove+23°C±2°Cshallbeconductedatthespecifictemperatureusingspecimensconditionedatspecifiedtemperaturefor4hminimum.

EmissionsTestingofInteriorMaterialsandParts.ForallCodeEdesignatedpartsperGMW14444,referenceGMW16853foremissionstestingofinteriormaterialsandparts.

ThevaluesspecifiedinTable1shallbemetbytestspecimensinnaturalorblack.Forintegrallycoloredgradeswhereotheradditivesystems(e.g.,stabilizer)areused,theimpactvaluesshallnotdecreasemorethan10%fromthespecifiedminimumvalue.

ChemicalRequirements.Allpartsmanufacturedfrommoldingcompoundsshallberesistanttothemediatheycontactattheirplaceofuse.

CompoundProperties.SeeTable1.Thefollowingarealsorequiredforfullspecificationapproval.Theminimumnumberoflotspertestrequiredisone(1)innatural:

TensileModulus

Poisson'sRatio

StressStrainCurveat+23°C,+85°C,-30°C.

PerformanceRequirements.Performancerequirementsshallbespecifiedonpartdrawingsorincomponentspecifications.

Table1:CompoundProperties(BlackorNatural)

Property

TestMethod

Units

NominalGlassFiberFillerPercentage

10%

20%

30%

40%

50%

ISOSymbol

ISO11469

-

>PP-GF10<

>PP-GF20<

>PP-GF30<

>PP-GF40<

>PP-GF50<

Ash

ISO3451-1,MethodA,at+800°C

%bymass

10±2

20±2

30±3

40±3

50±3

Density

ISO1183,MethodA

g/cm3

TargetRange0.97±0.03

TargetRange1.05±0.03

TargetRange1.15±、0.03

TargetRange

1.24±0.03

TargetRange

1.34±0.03

MeltFlowRate(MFR)230/2.16

ISO1133

g/10minutes

TargetRange3to9

TargetRange3to9

TargetRange3to9

TargetRange3to9、

TargetRange3to9

MeltVolumeFlowRate(MVFR)230/2.16

ISO1133

cm3/10minutes

ReportResults

ReportResults

ReportResults

ReportResults

ReportResults

TensileModulus

ISO527-1

ISO527-2

MPa

2500to3800

3800to5000

5200to7200

8000to11000

10000to13000

TensileStrengthatBreak

ISO527-1ISO527-2,Specimen1A,5mm/minute

MPa

240

255

265

280

290

TensileStrengthatBreakafterHeatAging1

ISO527-1

ISO527-2

%Retention

>85

CharpyImpactStrengthUnnotchedat+23°C

ISO179/1eU

kJ/m2

>20

235

>40

245

>45

Property

TestMethod

Units

NominalGlassFiberFillerPercentage

10%

20%

30%

40%

50%

CharpyImpactStrengthUnnotchedat-30°C

ISO179/1eU

kJ/m2

>15

>20

>20

>25

>25

CharpyImpactStrengthNotchedat+23°C

ISO179/1eA

kJ/m2

23.5

25

26

27

27

CharpyImpactStrengthUnnotchedat+23°CafterHeatAgingNote1

ISO179/1eA

%

Retention

285

HeatDeflectionTemperature1.8MPaMethodA

ISO75-1

ISO75-2

ISO75-3Flatwise

°C

>115

>125

>135

>140

>140

Shrink,48hafterMolding,Longitudinal

ISO294-4

%

TargetRange0.2to0.8

TargetRange0.1to0.8

TargetRange0.1to0.6

TargetRange0.1to0.6

TargetRange0.1to0.6

Shrink,48hafterMolding.Transverse

ISO294-4

%

TargetRange0.6to1.2

TargetRange0.6to1.2

TargetRange0.5to1.2

TargetRange0.5to1.2

TargetRange0.5to1.2

CoefficientofLinearThermalExpansion(CLTE),Longitudinal,-30°Cto+30°C

ISO11359-1

ISO11359-2

10-6mm/mm°C

TargetRange20to50

TargetRange

15to60

TargetRange

10to55

TargetRange

10to40

TargetRange

10to30

CLTE,Transverse,-30to+30°C

ISO11359-1

ISO11359-2

106mm/mm°C

TargetRange50to100

TargetRange

60to90

TargetRange

40to60

TargetRange

25to60

TargetRange

25to60

EmissionTestingofInteriorMaterials:Forinitialapproval:Testone⑴lotinblack

GMW16853

Odor

GMW3205-B3

Rating

26

Fogging

GMW3235-BY1T2

mg

RequirementsseeGMW16853

Property

TestMethod

Units

NominalGlassFiberFillerPercentage

10%

20%

30%

40%

50%

Emissions

GMW15634

VolatileOrganicCompound(VOC)value

SemiVolatileOrganicCompound(SVOC)value

ug/g

ug/g

RequirementsseeGMW16853

RequirementsseeGMW16853

Flammability

GMW3232

mm/minute

Self-Extinguishingorw100

OxidationStability504h±3hat+150°C±3°Cinanaircirculatingoven

ISO4577

-

Novisibleindicationoflocaldiscolorationand/orbrittlenessbymaterialdegradation

Note1:Heatagingfor1000h±5hat+140°C±3°CaccordingtoISO188MethodA(airovenmethod).Agedspecimensshallhaveretention>85%relativetounagedspecimenstestedconcurrently.

ManufacturingProcess

Notapplicable.

RulesandRegulations

LegalRegulations.Allmaterialsmustsatisfyapplicablelaws,rules,regulationsandrecommendationsvalidinthecountryofusage.

Language.IntheeventofconflictbetweentheEnglishanddomesticlanguage,theEnglishlanguageshalltakeprecedence.

InspectionandRejection.SamplesofcomponentsormaterialsreleasedtoaGMmaterialspecificationshallbetestedforconformitywiththerequirementsofthismaterialspecificationandapprovedbytheresponsibleEngineeringdepartmentpriortocommencementofdeliveryofbulksupplies.

Anewapprovalmustbereceivedforanychanges,e.g.,properties,manufacturingprocess,locationofmanufacture,etc.Ifnototherwiseagreed,alltestinganddocumentationnormallyrequiredforinitialreleasemustbecompleted.

Itistheresponsibilityofthesuppliertoinformthecustomerinatimelymanner,withoutsolicitation,andtoincludedocumentationofallmodificationsofmaterialsand/orprocessesandtoapplyforanewrelease.

MaterialSafetyDataSheets/SafetyDataSheets(MSDS/SDS).Fornewproductsubmissions,orwhenachangeinchemicalcompositionofanexistingproducthasoccurred,acompletecopyoftheMaterialSafetyDataSheet/SafetyDataSheetmustbesubmittedincompliancewiththeGloballyHarmonizedSystemofClassificationandLabelingofChemicals(GHS)requirementsorothercountry-specificMSDS/SDSrequirements.

AllmaterialssuppliedtothisstandardmustcomplywiththerequirementsoftheInternationalMaterialDataSystem(IMDS)andGMW3059,RestrictedandReportableSubstances.

ApprovedSources

MaterialssuppliedtothisspecificationmustbeapprovedbyGeneralMotors.

AlistofapprovedmaterialscanbefoundintheGMApprovedMaterialsSourceList.Toaccessthislist,referenceGMW14270forlatestlocation.ThisGMMaterialFileisprovidedtothirdpartiestoreduceredundanttestingofmaterials.Ifapprovedmaterialalreadylistedisused,thepartsuppliercanuseGMMaterialFilereferenceforProductionPartApprovalProcess(PPAP)materialapproval.Ifthedecisionismadetouseanotyetapprovedmaterial,contactGMMaterialsEngineeringfordetailsontheapprovalprocess.ThematerialapprovalprocessmustbecompletedpriortoPPAPstartdateofthepartsuppliedtoGeneralMotors.

Notes

Glossary.Notapplicable.

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