What material is best suited for connections in high-temperature applications within gas systems?

Stainless steel is the best-suited material for connections in high-temperature applications within gas systems due to its excellent strength, corrosion resistance, and ability to withstand elevated temperatures without losing structural integrity. In gas systems, connections often need to endure not only high temperatures but also the potential for exposure to corrosive gases.

Stainless steel retains its mechanical properties and does not deform or become brittle when exposed to heat, making it an ideal choice for ensuring safe and reliable connections in environments where temperature fluctuations are common. This property is crucial for maintaining the performance and safety of gas furnaces and other related systems.

Other materials like rubber, plastic, and aluminum may not perform as effectively in high-temperature conditions. Rubber can degrade and lose its elasticity when exposed to heat, plastic can melt or warp, and while aluminum has a reasonable thermal resistance, it may not provide the same level of structural integrity or resistance to corrosion as stainless steel in high-temperature applications. Thus, stainless steel stands out as the most reliable option for maintaining secure connections in gas systems operating under such challenging conditions.