SUMIBORON Work Material Hardness (HS)Flank Wear Width (mm)Cutting Speed vC (m/min) SUMIBORON / Coated SUMIBORON Grade Guidance Hardened Steel Cast Iron Exotic Alloy ROLL MACHINING ● Advantages of roll machining with SUMIBORON SUMIBORON enables the machining of high-hardness rolls that were previously difficult to machine with conventional tools, drastically improving machining efficiency. Recommended Grade Recommended Cutting Conditions 90 Work Material Recommended Cutting Conditions L 80 HSS Die SteelBNX20 BNS800BN7000 Category Hardness (HS) Cutting Speed vc (m/min)20406080100120140Feed Rate f(mm/rev)Depth of Cut ap(mm) Adamite ≥ 40 0.1 to 0.5 0.2 to 3.0 70 Hard Cast Iron Chiled Cast IronBN500High Aloy Cast Iron Chilledcast iron ≥ 60 0.1 to 0.5 0.2 to 3.0 60 DuctileCastBNX20IronAdamiteHigh-alloycast iron ≥ 60 0.1 to 0.5 0.2 to 3.0 50 HSS ≥ 70 0.1 to 0.4 0.1 to 3.0 Finishing to Medium to Roughing Roll stand (example for bar steel rolling) HARD FACING ALLOY MACHINING ● Advantages of hard facing alloy machining with SUMIBORON SUMIBORON enables the machining of high-hardness facing alloys that were previously difficult to machine with conventional tools, drastically improving machining efficiency. The first recommended grade is BN7000, followed by BNS800. Performance Recommended Cutting Conditions Whisker Reinforced Ceramic (vc = 50m/min) Work Material Recommended Cutting Conditions 0.1 Category Material Cutting Speed vc (m/min) Feed Rate f Depth of Cut ap50100200300(mm/rev)(mm) 0.05 BNS800 (vc = 300m/min) Ni-Based ColmonoySelf-Fluxing AlloyNo.6 0.05 to 0.2 0.1 to 3.0 0 0.2 BN7000 (vc = 300m/min)0.40.60.81.0 Co-BasedSelf-Fluxing AlloyStellite 0.05 to 0.2 0.1 to 1.0 Cutting Distance (km) Work Material: Colmonoy No.6 (NiCr-Based Self-Fluxing Alloy) Tool Cat. No.: SNGN090308 Cutting Conditions: f = 0.1mm/rev, ap = 0.2mm Dry ● BN7000 has a long tool life and minimal wear with high speed cutting HEAT-RESISTANT ALLOY MACHINING ● Advantages of heat-resistant alloy machining with SUMIBORON SUMIBORON provides long tool life in the finishing of heat-resistant alloys. Recommended Grade Recommended Cutting Conditions Work Material Recommended Cutting Conditions 400 BN350 Category Material Cutting Speed vc (m/min) Feed Rate f Depth of Cut ap50100150200(mm/rev)(mm) 200 Ni-Based InconelHeat-Resistant Aloy718 0.05 to 0.2 0.1 to 1.0 100 BN7000 50 Co-BasedHeat-Resistant AloyStellite 0.05 to 0.2 0.1 to 1.0 Carbide (Roughing, Med. Finishing) 30 0.1 0.2 0.3 0.4 Feed Rate f (mm/rev) ● SUMIBORON is ideal for finishing heat-resistant alloys. L10