Sandvik Coromant 5724728 CNMG431-PF 1525 Turning Insert

Product Description

The SANDVIK COROMANT 5724728 is a CNMG431-PF 1525 indexable turning insert engineered for finishing operations on steel, stainless steel, and cast iron. The insert is manufactured from carbide and carries a PVD-applied TiCN plus TiN coating that delivers high wear resistance with moderate toughness. It features an 80-degree diamond (rhombic) shape with a neutral hand orientation and a negative side clearance, making it compatible with standard CNMG-style toolholders. With four usable cutting edges per insert, it offers efficient cost-per-edge performance in high-volume turning applications. The T-Max P series designation places it within a well-established platform for external turning and profiling work. Licensed machinists and CNC lathe operators are the primary installers of this insert.

This insert is suited for finishing passes on steel workpieces (ISO material code P) as the primary application, with secondary capability on stainless steel (M) and cast iron (K). The PF chip breaker geometry is optimized for finishing cuts where controlled chip formation and a fine surface finish are the primary objectives. It is commonly used in both CNC turning centers and manual engine lathes equipped with a compatible CNMG negative-rake toolholder. The T-Max P series is a general-purpose external turning platform appropriate for both job-shop and production environments.

Key Features

• 80-degree diamond (rhombic) insert shape provides a strong cutting edge with versatile approach angle options
• PVD-applied TiCN plus TiN coating delivers high wear resistance suited for steel finishing applications
• PF chip breaker geometry targets finishing operations with controlled chip evacuation
• Four cutting edges per insert reduce tooling cost per edge in production turning
• Negative side clearance with clamp-and-pin holding method ensures rigid, repeatable seating in the toolholder
• Grade 1525 characteristics balance wear resistance and toughness for steel, stainless steel, and cast iron

Compatibility

Designed for use in CNMG-style negative-rake turning toolholders. ANSI insert code CNMG431 and ISO insert code CNMG120404 (ISO designation CNMG 12 04 04-PF 1525) identify compatible toolholder pockets. Holding methods include clamp and pin styles. No specific machine model compatibility data was provided by the manufacturer for this listing.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist with the machine spindle fully stopped and all energy sources locked out per facility lockout/tagout procedures. Seat the insert firmly into the toolholder pocket before tightening the clamp or pin to ensure proper contact with the locating surfaces. Inspect the insert pocket and clamping components for chips or damage before each index. Do not attempt to regrind or modify the cutting edges on this coated carbide insert.