670×200×170mmBasic Size
Process Characteristics:Through material improvement and rolling process optimization, the fatigue strength has reached the design value of crankshaft for China VI engines, and the substitution of iron for steel has been realized; product features: the first ductile iron crankshaft for China VI engines.
Material Requirements:Material designation: QT1000-5; tensile strength of the body ≥1000 Mpa; elongation: ≥5%; hardness: HB270-HB320; strengthening process: undercut fillet rolling + journal quenching.