The performance, material selection, and applications of metal bellows are as follows:
Brass Bellows (H80 H -60℃～+100℃): Low elasticity, large hysteresis and aftereffect, good brazing properties. Suitable for use as measuring elements in non-corrosive media and instruments requiring low precision.
Tin Bronze Bellows (QSn6.5～0.1× -60℃～+100℃): Good elasticity, strength, and corrosion resistance; low hysteresis and elastic aftereffect; good brazing properties. Widely used as measuring elements.
Beryllium Bronze Bellows (QBe2 P -60℃～+150℃): Very low hysteresis and elastic aftereffect, high elastic stability, corrosion resistance, non-magnetic. Primarily used in high-precision measuring instruments.
Stainless Steel Bellows (1Cr18Ni9Ti G -194℃～+400℃): High bending fatigue strength and corrosion resistance; good weldability. It can be used as a measuring, sealing, connecting and compensating element in corrosive media.