Hard steel refers in particular to hardened steel, bearing steel, die steel and other materials that are known for their high hardness, high strength, almost no plasticity and other characteristics. When cutting these materials, a large cutting force and a high cutting temperature are required, and a normal cutting tool is at an increased risk of cracking and higher wear.

In order to prevent these issues and lower products costs, a cutting insert with a high hardness, wear resistance, heat resistance, and a certain bending strength and excellent thermal conductivity are required, such as a PCBN insert. Therefore, when we cut these materials, large cutting force and high cutting temperature are required. If you use normal cutting tools, you will find that blade cracking and wear are common problems. BNS301 and BNW30 and other PCBN inserts made by REALY feature a low PCBN content and a fine grain size. The PCBN content in these cutting inserts is about 50-74%, making them ideal for customers that need to cut hard steel.

SNMN/SNGN PCBN Inserts
(Square PCBN Inserts BNS-30 Series Cutting Tool)

CNMN/CNGN PCBN Inserts
( 80° Diamond PCBN Inserts BNS-30 Series Cutting Tool)

DNMN/DNGN PCBN Inserts
( 55° Diamond PCBN Inserts BNS-30 Series Cutting Tool)

DNMA/DNGA PCBN Tipped Inserts
(55° Diamond Inserts BNW-30 Series CNC Lathe Cutting Tool)

VNMA/VNGA PCBN Tipped Inserts
(35° Diamond Inserts BNW-30 Series CNC Cutting Tool)

SNMA/SNGA PCBN Tipped Inserts
(Square Inserts BNW-30 Series CNC Cutting Tool)

Please contact us with any special requirements you have for manganese steel cutting. Backed by years of experience, we will offer the right PCBN insert for your needs.