Crankshaft Material

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Ratshooter

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I'm thinking about machining a crankshaft from the solid. What have you used with good results.

My materials here are the common and dreaded hot and cold formed mystery metal. Looks like I'll be making a purchase of something or other. Your input will be appreciated.

Thanks in advance, TC
 
12L14 is a good stress proof steel. I used it to make a crankshaft for a two cylinder engine and it never moved at all. ---Brian
 
1144 or LaSalle's StressProof is excellent for this application, assuming not some turbo high-speed racing engine. 12L14 leaded free-machining steel is softer and rusts if you look at it sideways. LaSalle's ETD-150 is like 1144, but harder (stronger). McMaster-Carr sells all three in small quantities the US.
 

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