898×225×212mmBasic size
Process characteristics:weight: 10% lighter than forged steel; cost: 15% lower than forged steel; product features: ductile iron crankshaft for heavy-duty 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.