ASTM A536 65-45-12 Ductile Cast Iron
ASTM A536 65-45-12 is a kind of ductile iron according to the American standard.
The yield strength is not less than 448MPa, the tensile strength is not less than 310MPa, and the elongation (L0=50mm tensile test bar) is not less than 12%. It is equivalent to China’s QT450-10.
Malleable cast iron
Malleable cast iron, referred to as tough iron. Obtained from white cast iron after annealing treatment, graphite is distributed in clusters. Its structural properties are uniform, wear-resistant, and have good plasticity and toughness. Used to manufacture parts with complex shapes and capable of withstanding strong dynamic loads.
An iron-carbon alloy with a carbon content of more than 2%. Industrial cast iron generally contains 2% to 4% carbon. Carbon is mostly present in the form of graphite in cast iron, and sometimes in the form of cementite.
White cast iron
The content of carbon and silicon is low, and the carbon mainly exists in the form of cementite, and the fracture is silvery white. Large shrinkage during solidification, easy to produce shrinkage holes and cracks. It has high hardness and high brittleness and cannot bear impact load. It is mostly used as blanks of malleable cast iron and making wear-resistant parts.
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