
AISI D2 Cold-Work Tool Steel
AISI D2 is a high-carbon, high-chromium cold-work tool steel widely used for industrial slitter, shear and granulator blades.

AISI D2 is a high-carbon, high-chromium cold-work tool steel widely used for industrial slitter, shear and granulator blades.

Corrugated slitting is one of the most abrasive industrial cutting applications. The substrate is a multi-layer composite of kraft paper + adhesive + flute.

Crusher blades take the largest impact loads in industrial cutting. A 30 mm M16 nut in a granulator feed will shatter a D2 blade in 200 cycles.

Granulator rotor and bed knives see impact, contamination and abrasive fillers. The right grade, geometry and edge prep separates a 2-week knife from a 6-month.

Paper slitting looks simple until you account for the substrate GSM, the caliper variation, the trim, the lay-flat tension and the line speed.

Plate shear blades see impact, work-hardening substrate and variable stock thickness. The grade, hardness and chamfer choice drive a 10× difference in service.