An improved heat-resisting, machinable alloy for use as electric resistance material for high temperatures, as well as for manufacturing details of construction exposed to high temperatures

摘要

A heat-resisting, machinable alloy having a high electrical resistance and good mechanical strength and tenacity consists of 10-30 per cent. chromium, 2-9 per cent. aluminium, 14-30 per cent. cobalt and 0.01-0.35 per cent. carbon, the remainder being iron. The alloy may also contain one or more of niobium, molybdenum, titanium, vanadium and tungsten in total not more than 5 per cent. The alloy may also contain one or more de-oxidisers, namely barium, magnesium, calcium, zirconium, beryllium, strontium, thorium and cerium up to a total of 5 per cent. and may contain 2-3 per cent. of silicon. Specification 434,849 and Swedish Specification 68,180 are referred to.