Mitsubishi TPMH160304-MV US735 | Stainless Steel Carbide Insert
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TPMH160304-MV US735
Mitsubishi Materials | Heavy-Duty Stainless Steel Specialist
Heavy-Duty Precision for Stainless Boring
The Mitsubishi TPMH160304-MV US735 is a high-toughness PVD coated carbide insert designed for the most demanding stainless steel turning applications. The US735 grade is engineered with a specialized substrate that excels in the "M" material group, providing incredible resistance to Built-Up Edge (BUE) and thermal cracking. With its large 16mm edge length and the MV chipbreaker, it is the premier long-tail turning tool for finishing large internal diameters in 304, 316, and Duplex Stainless Steels.
US735 PVD Toughness | MV Finishing Geometry | Large Scale Precision
Technical Code Identification
Triangular Shape
11° Positive Relief
M-Class Tolerance
Countersink Hole
16.5mm Edge
3.18mm Thick
0.4mm Radius
Chipbreaker
ISO (Metric) vs ANSI (Inch) Comparison
| Feature Spec | ISO (Metric) | ANSI (Inch Equivalent) |
|---|---|---|
| Model Number | TPMH160304-MV | TPMH 321 MV |
| Inscribed Circle (IC) | 9.525 mm | 0.375" (3/8") |
| Thickness | 3.18 mm | 0.125" (1/8") |
US735 Grade Performance
The US735 grade utilizes an advanced PVD (Physical Vapor Deposition) coating over a high-toughness carbide substrate. This allows the insert to withstand the high mechanical stress and intermittent impacts common in large-diameter stainless steel machining. It is particularly effective at preventing notch wear and adhesion (welding) between the chip and the tool.
MV "Multi-Value" Chip Control
The MV chipbreaker is designed for finishing and light-medium turning. Its sharp cutting geometry reduces radial cutting forces, which is critical for maintaining concentricity in deep CNC boring. It forces tough stainless chips into small, compact curls, ensuring they flush out easily without damaging the surface finish.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Stainless Steel (304/316) | 80 - 150 m/min | 0.05 - 0.20 mm/rev | 0.2 - 2.5 mm |
| Precipitation Hardened (17-4PH) | 60 - 120 m/min | 0.05 - 0.15 mm/rev | 0.2 - 2.0 mm |
COMPATIBLE HOLDERS
Designed for high-rigidity STFPR/L 16 or STGPR/L 16 boring bars.
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