Thread: Cheap tie rods at Tractor Supply
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Old Jun 18, 2013 | 11:38 PM
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onehundred80
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Default Re: Cheap tie rods at Tractor Supply
Originally Posted by syfi
With a Tensile Strength (PSI) of 80,000, a Yield Strength (PSI) of 70,000 and a Rockwell Hardness of B80, DOM is more then strong enough and comparable to solid steel. Plus it weighs less and makes for stronger threads.
Only Chromoly is stronger then DOM, and much more expensive.
I think you skipped the metallurgy class too often.
DOM is made from low carbon steel, basically a good mild steel, SAE 1020, 1025. It work hardens to a greater and lesser degrees and is not really heat treatable except by case hardening as the carbon content is too low. It has the benefit of being reasonably malleable for swagging and forming etc because it does not work harden too much depending on the alloy.
How you could call this stronger than solid steel is strange. As steel goes this is cheap to buy and easy to machine but not the easiest.
 
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