Iscar 5509996 CNMG431TF IC806 Turning Insert Solid Carbide

Product Description

The ISCAR 5509996 is a CNMG431TF IC806 grade solid carbide turning insert designed for precision metal cutting in demanding superalloy applications. Coated with TiAlN via a PVD process, this insert delivers heat and wear resistance needed when machining nickel-based, titanium, and other high-temperature alloys. It features an 80-degree diamond shape (Insert Shape Code C), a positive rake geometry, and a TF chip breaker that promotes controlled chip flow. The inscribed circle measures 0.5 inches, insert length is 0.508 inches (12.9 mm), and the corner radius is 0.0156 inches (1/64 inch). Held by clamp and pin, it fits standard CNMG toolholders. Machinists and CNC lathe operators working in aerospace, power generation, and precision manufacturing will recognize this geometry as a workhorse for finishing and semi-finishing passes on tough materials.

This insert is intended for external and internal turning operations on superalloys, corresponding to ISO material group S. The Isoturn series geometry and IC806 submicron carbide grade are matched specifically for the cutting forces and thermal loads generated by nickel alloys, titanium alloys, and heat-resistant steels. Maximum depth of cut reaches 4.00 mm (0.1575 inches), making it well suited for semi-finishing and light roughing passes. It is sold individually with a minimum order quantity of 10 units, as is standard for indexable insert procurement in production environments.

Key Features

• IC806 submicron solid carbide grade with TiAlN PVD coating for extended tool life in superalloy cutting
• CNMG 80-degree diamond shape with positive rake for reduced cutting forces on heat-resistant materials
• TF chip breaker geometry promotes reliable chip control during semi-finishing operations
• Maximum depth of cut of 4.00 mm (0.1575 inches) supports semi-finishing and light roughing
• Clamp and pin holding method compatible with standard CNMG toolholder systems
• Meets ISO 13399 standard for tool data representation and integration

Compatibility

Designed as an OEM-style indexable replacement for standard CNMG431 toolholders used in turning operations on superalloy workpiece materials (ISO material group S). Specific compatible toolholder model numbers were not provided in the available product data.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and all axes are at a safe position before indexing or replacing inserts. Use the appropriate torque wrench for the clamping screw to secure the insert without cracking the carbide substrate — refer to the toolholder manufacturer's torque specification. Inspect the insert pocket and seating surface for chips or debris before seating the new insert.