D5S high-nickel austenitic ductile iron (nickel content 34%-37%) possesses advantages such as thermal shock

resistance, creep resistance, high-temperature corrosion resistance, high-temperature oxidation resistance, low

thermal expansion, and low-temperature impact toughness. It has become one of the important materials for

manufacturing turbocharger housings, exhaust manifolds, valve seats, valve bodies, pump bodies, and other

high-temperature corrosion-resistant components used in automotive, marine, and heavy machinery turbo engines.

Our company has developed precision-cast and sand-cast high-nickel austenitic ductile iron valve discs and valve

body castings, which have been used in exhaust systems for heavy-duty trucks, ships, and other applications.