Sandvik Coromant 5853518 R390 Milling Insert Carbide

Product Description

The SANDVIK COROMANT 5853518 is a solid carbide indexable milling insert designed for demanding material removal applications in stainless steel, superalloys, and titanium. This right-hand, single-sided parallelogram insert carries the ANSI and ISO designation R390-17 04 31E-PM S40T and is manufactured to the S40T grade. It features a CVD-applied multilayer coating of TiCrN, Al2O3, and TiN for elevated wear resistance and thermal stability at the cutting zone. The PM chip breaker geometry promotes positive rake cutting action, reducing cutting forces on difficult-to-machine workpiece materials. Cutting edge style is corner rounded with a corner radius of 3.10 mm.

This insert is intended for use in R390 series face milling and shoulder milling cutter bodies. It is suited to roughing and semi-finishing operations on stainless steel and high-temperature superalloys and titanium alloys where heat generation and built-up edge are primary concerns. The insert accommodates a maximum depth of cut of 15.70 mm and delivers two usable cutting edges per insert. Typical applications include aerospace component machining, medical part production, and general stainless fabrication where CVD-grade carbide inserts are specified.

Key Features

• Solid carbide substrate with CVD multilayer TiCrN, Al2O3, and TiN coating for heat and wear resistance
• S40T manufacturer grade optimized for stainless steel (M40) and superalloys and titanium (S35)
• Positive rake angle of 22 degrees with 19-degree relief angle reduces cutting forces on tough materials
• PM chip breaker geometry controls chip flow in difficult-to-machine alloys
• Corner radius of 3.10 mm with corner rounded cutting edge style for smooth surface finish
• Maximum depth of cut of 15.70 mm supports aggressive stock removal in R390 milling applications
• Screw-held, single-sided insert with right-hand orientation for repeatable indexing

Compatibility

Designed for use with R390 series cutter bodies as specified by ANSI code R390-17 04 31E-PM S40T and ISO code R390-17 04 31E-PM S40T. Cutter series compatibility is confirmed for the R390 platform.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the manufacturer-specified torx or hex key for the clamping screw and do not exceed the recommended seating torque for the cutter body. Inspect the insert pocket and clamping screw for wear or damage before seating a new insert.