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Nitinol Spring

SKU #HS-620
Availability: In Stock
Qty.
What's so special about a piece of coiled wire? Plenty!

Description

What's so special about a piece of coiled wire? Plenty. Our spring is made of nitinol, an amazing metal that can be twisted or straightened but will always return to its original shape when dipped into hot water (~50°C). Talk about discrepant events - this wire is practically magic! An alloy of nickel and titanium, nitinol (Ni-Ti) falls into a sophisticated class of materials known as shape memory alloys that "remember" their original shape. Perfect for classroom demonstrations. Comes with a Teacher's Guide. Wire is 0.75 mm thick, with a 20 mm inner diameter and 45 cm overall length. If you're looking for straight memory wire, please see our Nitinol Memory Wire (HS-6, HS-9 and HS-610), sold by the foot or in 3 inch sample packs.

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Reviews

2 reviews
fun!
Review star icon Review star icon Review star icon Review star icon Review star icon Sep 14, 2018
I like to wrap it in a tight coil and watch it leap out of hot water. My students want to see it again and again!
Heidi Reinhardt

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Magical!
Review star icon Review star icon Review star icon Review star icon Review star icon Aug 26, 2016
The video is good but this is awesome in person. I straightened the wire out as best I could and slowly submerged it in hot tap water. It is so strange but it made me smile. Great for close up science.
Mark Carter

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