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.
HEXAGONAL NIPPLE double wire head It adopts a hexagonal head design, and can be tightened by tools when used with nuts. Hexagonal head bolts are usually used for one-time installation occasions, such as in automotive manufacturing, aerospace manufacturing, construction and other industries, which use a lot of such bolts. In the installation, the hand wrench can be tightened, more convenient and practical.