Scrap prices like Invar Scrap Prices and other materials can be found on the iScrap App by contacting the local scrap yards. Invar is a nickel and iron alloy found mainly in clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and anti-magnetic watches. Although it is not used as much as it used to be, scrapping Invar will still get you a good amount of cash depending on how much you have. To find scrap metal yards near you accepting scrap Invar, check out the iScrap App.
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The app will help you find yards near you as well as prices for Invar and other scrap metals. Pricing for Invar will vary depending on what yard you decide to bring it to and how much of it that you have. To get the best Invar prices contact more than one yard. Large loads of Invar can be picked up from your local yard. Fill out a container request right from the app and they will be in contact with you with information and Invar pricing. Check out the iScrap App and start scrapping today.
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Look for Invar 36FC. That stands for free cut. The stuff machines quite easily and nicely, not unlike 303. Note that Invar should be annealed after machining to get the best properties, but it's not that bad if you don't do it. If you get into Super Invar, send me a PM. That stuff is hell on wheels, though the COE can be zero at room temperature. Machines like an exotic- even with Moly-Dee you'll be replacing cutters at an expensive rate.
Just a note on design- if you aren't careful about avoiding bimetal situations with other materials, you'll never get the performance the Invar is capable of. Watch out for bolting things together and creating an "oil can" situation where the thermal motions are wildly far from what you'd expect! Best solution is often all invar or no invar.
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