Nitinol 1-Way Memory Spring Af 45; W0.75D6.5H41

A longer version of our popular 16mm spring, Nitinol pre-trained 1-way memory helical/coil spring contracts and exerts force when heated to 45C. Once cooled to room temperature, the spring requires almost no resistance to stretch it. Recommended maximum expansion when cold: 300mm (excluding hooks). Characteristics This variant of the NiTi spring contracts when heated and can be mechanically expanded when cooled with little resistance. Spring wire gauge: 0.75 mm Spring OD: 6.5 mm ( 5.0mm mandrel ) Fully contracted ( hot ) length: 41 mm Fully extended ( cold ) length: up to 300 mm Weight: 3.1 grams