Historically the most widely used material for bellows manufacturing. Good for temperatures up to approximately 300°F (150°C). Usually soft soldered to end fittings.
Somewhat more corrosion resistant than brass. Has slightly greater tensile strength. Usually soft soldered to end fittings. With proper care, may be brazed or arc welded. An excellent choice for many higher volume applications.
Heat treatable. Widely used where maximum stability and life expectancy are necessary. May be brazed and heat-treated after assembly for greatest stability. Maximum operating temperatures should not exceed about 400°F (204°C).
A copper-nickel alloys with higher corrosion resistance than brass, bronze and beryllium copper. High strength and excellent corrosion resistance in a range of acidic and alkaline environments. Maximum operating temperature about 400°F (204°C). May be brazed, arc or laser welded. Good for applications such as steam traps.
Alloys used for bellows manufacturing include types 316, 316L, 321, 347 and A-286. Excellent tensile strength and corrosion resistance. May be soldered, brazed and welded.
High nickel alloys with superior corrosion resistance. Higher tensile strength at elevated temperatures accommodates higher bellows stress change. Not age hardenable. May be brazed, arc or laser welded.
High nickel alloys with excellent corrosion resistance to most media. Has highest tensile strength at elevated temperatures of all bellows materials fabricated by Fulton. May be age hardened before or after assembly. May be brazed, arc or laser welded.