Common materials used in the manufacture of brazing fixtures include low-carbon steel, stainless steel, high-temperature alloys, molybdenum, graphite, ceramics and . Among these, austenitic stainless steel (such as 1Cr18Ni9Ti) is the most commonly used material for the manufacture of brazing fixtures. It offers advantages such as good temperature resistance (generally usable at temperatures below 1100 °C under vacuum conditions), good machinability, good oxidation resistance and corrosion resistance, and relatively low cost; however, it has a high coefficient of thermal expansion, which must be taken into account during fixture design.

To reduce the weight of the fixture structure, a flanged structure made from high-stiffness sheet metal is often employed. When using thick-plate structures, lightweight features such as reduced-diameter holes should be incorporated to minimise structural weight whilst ensuring the fixture’s rigidity. Graphite and ceramic materials possess excellent high-temperature resistance, low coefficients of thermal expansion and good dimensional stability; furthermore, they are unlikely to react with or adhere to the workpiece, making them commonly used materials for fixtures and as barrier materials—such as ceramic fibre paper—during high-temperature brazing.

To achieve self-clamping of the workpiece during the brazing heating process, it is sometimes possible to utilise the differing coefficients of thermal expansion of various materials by combining different materials to manufacture the fixture. To prevent adhesion between the fixture and the workpiece, measures such as using high-temperature-resistant shims to isolate the ceramic fibre paper shims, ensuring the ceramic fibre paper does not cause contamination of the vacuum furnace, applying a flow-inhibiting agent (which can easily contaminate the vacuum furnace), or carrying out pre-oxidation treatment may be adopted.