Work Hardening Ni200

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dam718

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So I have a spool of Annealed 30AWG Ni200 on the way from TEMco. I've seen some folks talking about "tempered" Ni200, but I have yet to find a source for the tempered Ni200 here in the US.

So what I'm curious about is, wouldn't the same processes for work hardening any other type of wire also be effective on Ni200? Running it through some nylon pliers, twisting single strands, rawhide mallet? Same processes used by jewelry makers? I saw a RiP Trippers video where he used the twisting method on Kanthal (Although he was calling it straightening as opposed to work hardening).

Has anyone tried any of these methods on Annealed Ni200 to make it a bit easier to work with and screw down without breaking?
 

SLIPPY_EEL

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i could be totally wrong but i thought the way to harden a metal was to heat it up then plunge it into water, ive straightened a lot of thick kanthal wire out by dragging plastic along the length and ive only seen this to weaken the wire and im presuming ni200 is a softer metal as its nichrome :unsure:

i also believe that twisting or straightening wire by twisting a single strand weakens it
 
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Magaro

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Twisting or bending Nickel wire is an effective way to harden it. Twisting will allow you to get more plastic deformation in it more uniformly, resulting in a higher hardness, and you get a straight wire to boot. You'll never get it hard like a piece of piano wire, but it does harden noticeably. Hardened wire gets that way when they draw it down to size. Then it is heated at different temperatures and times to soften it to different levels. Once you fire your coil, it will soften, so be aware of that when wicking/rewicking.

Heating and quenching is an important way to harden iron-carbon alloys (steels) and a variety of others, but not pure Nickel.
 
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