Turning inserts and grades for hardened steel
Turning hardened steel calls for super-hard insert grades. Whatever your component or requirements for surface finish, you will find productive insert grades here that can withstand high temperatures and cutting forces and still retain their cutting edges.
CB7125
This CBN grade is your first choice for case and induction hardened steels. With its medium content of boron nitride, it is suitable for light to medium interrupted cuts.Benefits and features
High performance hard part turning inserts
The new generation CBN grades are specifically designed to handle typical hard part turning machining challenges, such as surface and dimensional tolerance demands with competitive tool life, in the most efficient way.
Achieve good surface finish in HPT
Hard part turning has been proven to reduce machining time and costs by 70% or more.
CBN insert with integral chip breaker
Increase productivity with a single cut strategy for hard-to-soft rough machining of automotive components such as gears, crown wheels, shafts and case-hardened components.
Find your solution for hard part turning
Whatever your component design or surface finish requirements, you will achieve high productivity and outstanding quality with our HPT solutions.
What’s new?
The new generation CBN grades CB7125 and CB7135 are designed to break new ground in medium to heavy interrupted hard part turning. The grades are optimized to handle high surface and dimensional tolerance demands in the most efficient way.CB7125 and CB7135
Benefits
Find your grade
Our hardened material insert grade assortment mainly consists of uncoated and PVD-coated CBN grades for various machining conditions. We also have complementary grades. Use the information below to find the right grade for your production.
| Application area | |||
 | |||
| Machining conditions: |  Good |  Average |  Difficult |
CB7105
First-choice CBN grade for low feed andcontinuous cuts in stable conditions athighest speed in case and inductionhardened steel.
CB7115
First-choice CBN grade for high feed and/or depth of cut in continuous to lightinterrupted cuts at high speed in caseand induction hardened steels.
CB7125
First-choice CBN grade designed to deliver stable and predictable tool life while machining case and induction hardened steels with light to medium interrupted cuts (chamfered component edges).
CB7135
First-choice CBN grade designed to deliver stable and predictable tool life while machining case and induction hardened steels with heavy interrupted cuts (un-chamfered component edges).
Complementary grades
Highlights
Gain an edge in steel turning
Dealing with the intense competition in manufacturing today means finding solutions to lower cost per part, but always without compromising process security. Find out how to make your steel turning operations more efficient.
Hard part turning with CB7105 and CB7115
The new grades are based on the newest generation Cubic Boron Nitride (CBN) material. This material enhances crater wear resistance and fracture resistance at high cutting speed in case hardened and induction hardened material.
Hard part turning with CB7125 and CB7135
New generation CBN grades optimized for medium to heavy interrupted cuts. These grades deliver longer and more stable tool life, good surface finish and consistent dimensional tolerances, even at higher cutting parameters.
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Sandvik Coromant UK
+44 (0)121 368 0305