Optimization of 55SiCrA Square Steel Shear Blades
May 12, 2026
Using 55SiCrA square steel (produced by Baosteel) to manufacture shears traditionally involves conventional annealing processes. However, these methods are characterized by high energy consumption, long cycles, and low production efficiency.
By implementing a Quenching and Tempering (Q&T) Spheroidizing preparatory heat treatment, we achieve a uniform spheroidized structure. This effectively eliminates the graphitization tendency typically caused by the high silicon content in 55SiCr steel.
For shearing plates under 6mm in thickness, the service life of shear blades increased from 6,000 cuts to 25,000 cuts. This significant improvement in durability offers a clear economic advantage.
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