B2K meansstability in surface hardness the best machinability, and perfect roundness
in free cutting wires from  the dedicated confidence in controlling raw materials and 
on production accuracy.

Class

Grade

Surface Hardness

Application

Bright Annealed

Normal Cold Machinability

Higher Cold Machinability

Austenite

AISI304

W1

1/4H

1/2H

Shaft
& PIN

AISI316

AISI303

AISI303C

Martensite

AISI420J2     AISI420F

W1

1/4H

1/2H