Specialty & High-Performance Materials

High-Temperature Materials

High-temperature materials keep strength, shape and oxidation resistance at elevated operating temperatures, from heat-resistant steels and nickel superalloys to refractory metals, graphite and ceramics. We help select the right material for furnaces, exhausts, fixtures and hot process equipment.

What it is

Material choice depends on temperature, load, atmosphere and thermal cycling: heat-resistant stainless steels (310, 253MA) to about 1,100 °C; nickel alloys (Inconel 600/601) for higher strength and oxidation resistance; molybdenum and tungsten in vacuum; graphite and ceramics for the most extreme temperatures.

Creep strength (resistance to slow deformation under load at temperature) is often the deciding property.

Typical applications

  • Furnace fixtures, trays and baskets
  • Heat treatment and brazing jigs
  • Exhaust and burner parts
  • Kiln and hot process components
  • High-temperature fasteners

Materials & grades

  • Heat-resistant stainless (309, 310, 253MA)
  • Nickel alloys (Inconel 600/601, Incoloy 800H)
  • Refractory metals (Mo, W)
  • Graphite and ceramics

Points to consider

  • Share maximum temperature, atmosphere and load for correct selection.
  • Thermal cycling causes fatigue and distortion; allow for expansion.
  • Oxidising versus vacuum environments change the best choice.
  • Cost rises steeply with temperature capability.

Frequently asked questions

What material is best for furnace fixtures?

Often heat-resistant stainless (310, 253MA) or nickel alloys (Inconel 601) depending on temperature, load and atmosphere.

What is creep?

Slow permanent deformation of a material under sustained load at high temperature; creep strength is key for hot parts.

Can stainless steel handle high temperatures?

Heat-resistant grades like 310 handle up to about 1,100 °C in air; common grades like 304 are lower.