Alloy C-4 is an austenitic nickel-molybdenum-chromium alloy with a low carbon, silicon, and iron content. This alloy has a significantly lower tendency to form precipitation in the temperature range between 650 and 1,040 °C(1,202 - 1,904 °F), improving its resistance to inter-crystalline corrosion. When machined perfectly, no knife line attack occurs in the heat-affected zones of awelding edge. Alloy C-4 is characterized by: Very good resistance in a broad field of corrosive media, in particular under strongly oxidizing conditions. Excellent resistance to pitting, crevice and stress corrosion.
Thread Pipe Half Coupling is an accessory commonly used in industrial pipe connections. Also known as a pipe hoop. Usually the plumber is also called direct in the process of use. Usage: A pipe hoop is a short pipe used to connect two pipes. Also known as the outer connector. Because of its convenient use, the pipe hoop is widely used in civil construction, industry, agriculture and other fields.