基本信息
文件名称：GS?90009-2021高强度螺栓螺钉.pdf
文件大小：263.96 KB
总页数：7 页
更新时间：2025-06-16
总字数：约1.63万字
文档摘要
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GS90009:2021-03
BMWGroupStandardReleasedGS90009
2021-03
Replacementfor
GS90009:2001-05
Ver?ffentlicht
Name:Kirchhoff
Datum:11.01.2022
Highstrengthfasteners
Screwsandbolts
Author,StandardizationDepartment
RobertMaier
Print-outsarenotsubjecttothechangeservice.
Theuserofthisdocumentisunderobligationtoverifyitscurrentvalidity.
Continuedpage2to7
?BMWGroup-Allrightsreserved
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GS90009:2021-03
Contents
1Scopeandpurpose3
2Normativereferences3
3Symbolsandabbreviations3
4Requirements4
4.1General4
4.2Mechanicalproperties4
4.3Chemicalcomposition4
4.4Heattreatment5
4.5Temperingtemperature5
4.6Delta-Ferrite(δ-ferrite)5
4.7Surfacecarboncondition5
4.8Surfacetreatment5
4.9Frictioncoefficients,assemblyperformance6
5Testingandi