QT700-2 ductile iron is a part with high strength, wear resistance, and low toughness (low plasticity).
Material name: Nodular cast iron
Standard: GB 1348-2009
●Characteristics and scope of application: It is a pearlite nodular cast iron with high strength, wear resistance and low toughness (low plasticity). It is suitable for parts with high strength requirements, such as crankshafts, camshafts, main shafts of some grinders, milling machines, lathes, ball mill gear shafts, and small hydraulic turbine main shafts of diesel engines and gasoline engines.
Carbon C: 3.08～3.30
Silicon Si: 2.49～3.13
Manganese Mn: 0.55～0.61
Sulfur S: 0.017～0.022
Phosphorus P: 0.045～0.052
Tensile strength σb (MPa): ≥700
Conditional yield strength σ0.2 (MPa): ≥420
Elongation δ (%): ≥2
● Heat treatment specification and metallographic structure: Heat treatment specification: (to be determined by the supplier, the following is the heat treatment specification of a sample for reference) 800℃, normalizing Metallographic structure: graphite + pearlite + a small amount of ferrite
Contact Person: Ms. Juliet Zhu