What is the Difference between Ductile Iron Casting and HT Casting? - Ningbo Fanhua Precision Casting Co., Ltd.

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What is the Difference between Ductile Iron Casting and HT Casting?

Ductile iron casting parts have good ductility, and ductile iron shape is spherical graphite.

It is widely used that ductile iron casting parts have high strength, ductility and toughness because ductile iron has smaller fragmentation to the metal matrix. The ductile iron casting is mainly used in the manufacture of more complex mechanical parts larger loads, such as crankshaft, connecting rod, gear, and camshaft and so on.

Ductile iron casting trademark in China grades by the "QT" plus two numbers. Where "QT" is the first letter of the pinyin word “Qiu Tie”, the two groups stand for the minimum tensile strength values and the minimum elongation values.

HT casting is made of gray iron a casting which is different from ductile iron casting, and its shape is flaky morphology. Because the presence of flake graphite separates the metal matrix organization and reduces the effective bearing area, their mechanical property is lower. With its good vibration resistance, wear resistance, ease of casting and machining, HT casting is mainly for manufactured to withstand the pressure bed, cabinet, frame, rails and other parts.

And what is another difference from ductile iron casting?Gray cast iron trademark in China grades as “HT” plus numbers, of which “HT” is the first letter of the pinyin word “Hui Tie”, the numbers stand for the minimum tensile strength.

All above are the difference between ductile iron casting and HT casting, and if you still have some questions, you can send an e-mail to me.

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