This part specifies the technical requirements, test methods and inspection rules, marking, packaging, storage and transportation of metal shear blades and disc shear blades. This section is mainly applicable to the manufacture and acceptance of circular blades of integral disc shears. Other blades can also be used with reference.
YB/T 4070.2-2006 Referenced Document
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration*, 2009-05-01 Update
GB/T 223.13 Methods for chemical analysis of iron,steel and alloy The ammonium ferrous sulfate titration method for the determination of vanadium content
GB/T 223.26 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method*, 2008-05-13 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 4070.2-2006 history
2006YB/T 4070.2-2006 Technical specifications of blade for metal shearing. Circular shear blade
1992YB/T 4070.2-1992 All shear blade technical conditions Disc shear blade