详情
Good toughness. Impact value is more than *0 times of the grey
iron materials .
Strong abilities to resist corruption. In the corrosion test,
corrosion of this is only 1/*0 of the steel tube, and
1/*0 of the grey iron pipe. Useful life is 2 times of grey
iron pipe , and 5 times of ordinary steel pipe.
Good plasticity. Elongation of this is 7% or higher, same as
the high carbon steel material, and grey iron material’s
elongation is zero.
• High strength. tensile strength is the same as the low
carbon steel material, three times of gray iron material.
• Because of the microstructure, nodular cast iron is better than
cast steel in weakening vibration ability.
• One important reason of choosing ductile iron is its lower
cost. Nodular cast iron’s lower cost makes this kind of material
more popular, more efficient, less machining cost.
The strength of the nodular cast iron and cast steel strength is
comparable. Ductile cast iron has higher yield strength, the
yield strength minimum of *0 k, and cast steel yield strength
only *6 k. In most municipal application fields, such as: water,
salt water, steam, etc., corrosion resistance and oxidation
resistance of ductile iron are more than cast steel.
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