This standard specifies the ordering content, size, shape, weight and allowable deviations, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of hot-rolled steel for automobile wheel retaining rings and locking rings. This standard applies to hot-rolled steel sections for automobile wheel retaining rings and lock rings (hereinafter referred to as section steel).
YB/T 039-2005 Referenced Document
GB/T 222 Permissible tolerances for chemical composition of steel products*, 2006-02-05 Update
GB/T 223.10 Methods for chemical analysis of iron,steel and alloy The cupferron separation-chrome azurol S photometric method for the determination of aluminium content
GB/T 223.3 Methods for chemical analysis of iron, steel and alloy--The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.4 Alloyed steel.Determination of manganese content.Potentiometric or visual titration method*, 2008-05-30 Update
GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method*, 2008-08-19 Update
YB/T 039-2005 history
2016YB/T 039-2016 Hot-rolled steel sections for wheel retaining rings and locking rings
2005YB/T 039-2005 Hot-rolled section steel for automobile retainer
1970YB/T 039-1993 Hot rolled steel for automobile wheel retaining rings
YB/T 039-2005 Hot-rolled section steel for automobile retainer has been changed from YB/T 040-1993 Hot-rolled section steel for automobile wheel lock ring.