B2K meansstability in surface hardness the best machinability, and perfect roundnessin free cutting wires fromthe dedicated confidence in controlling raw materials andon production accuracy.ClassGradeSurface HardnessApplicationBright AnnealedNormal Cold MachinabilityHigher Cold MachinabilityAusteniteAISI304W11/4H1/2HShaft& PINAISI316AISI303AISI303CMartensiteAISI420J2 AISI420FW11/4H1/2H
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