Which material used in egr cooler tube?

EGR (Exhaust Gas Recirculation) cooler tubes are typically made from materials that can withstand high temperatures and corrosive exhaust gases. Common materials include stainless steel, which offers Excellent resistance to corrosion and thermal stress, and aluminum, which is lightweight and has good thermal conductivity. Some designs may also incorporate specialized coatings or alloys to enhance durability and performance.