Alloy DS is a heat resistant Ni-Cr-Fe alloy with Si addition for the employment at high temperatures where sufficient strength and corrosive resistance are required. Alloy DS is heat resistant upto 1100° Celsius when in fresh air. This alloy is especially resistant against changing oxidizing / reducing conditions as well as the formation of sigma phase in the critical temperature range of 590-870° Celsius. Furthermore it is green rot. Due to high strength and heat resistance to alloy DS, smaller sections than usual can be manufactured from this material.