Fireman Stan

Nickel and Copper alloys are widely used at high tempatures. Monel for example can withstand roughly 2000 F before becoming a puddle of molten metal. Stainless steel is about 1200 F, and there are several other metals made of Tantalum and Tungston that have an melting point of over 4600 F. Then of course if you have the money you could go for Carbon-Carbon Composites, But... that's expensive. Hope any of this helped. Carbon-Carbon is very light weight. And can withstand about 3000 F.