Description
FATIGUE-PROOF is a trademarked name owned by Niagara LaSalle Corporation. It refers to a specific type of medium-carbon, free-machining steel known for its superior mechanical properties and high resistance to fatigue and wear. FATIGUE-PROOF has excellent machinability for a material of its strength. In standard practice, it will machine up to 25% faster than annealed alloy steels and up to 75% faster than heat treated alloy steels. Excellent dimensional stability is maintained. Tool use as well as surface finish is better.