Mitsubishi TCMT16T304 US735 | PVD Carbide Insert for Stainless Steel
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TCMT16T304 US735
Mitsubishi Materials | The Specialist for Stainless Steel & Interrupted Cutting
The Mitsubishi TCMT16T304 US735 is a high-toughness PVD coated carbide insert specifically engineered for stainless steel turning. Utilizing the legendary US735 grade, this insert excels in environments with high thermal shock and interrupted cuts. It is the premier choice for long-tail precision tools used in machining austenitic stainless steels (300 series) where edge reliability and resistance to built-up edge (BUE) are critical.
PVD Nano-Coating | M-Class Precision | Toughness Specialist
Nomenclature Breakdown
Triangular Shape
7° Relief Angle
M-Class Tolerance
Fixing Hole
16.5mm Edge
3.97mm Thick
0.4mm Radius
International Standard Conversion
| Parameter | Metric Model (ISO) | Inch Model (ANSI) |
|---|---|---|
| Model Reference | TCMT16T304 | TCMT 32.51 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Thickness (S) | 3.97 mm | 0.156" |
| Corner Radius (RE) | 0.4 mm | 0.016" |
US735 Grade Performance
The US735 grade is Mitsubishi's specialized PVD coated carbide designed for the "tough" side of the ISO M (Stainless) and ISO P (Steel) spectrum. It is characterized by high resistance to thermal cracking and chipping, making it unparalleled for interrupted cutting and machining materials that tend to stick to the edge.
Precision Chip Control
The TCMT positive geometry combined with the US735 coating significantly reduces cutting resistance. Its dedicated chipbreaker is designed for stable chip evacuation in gummy stainless steels, ensuring that long, stringy chips do not damage the workpiece surface or the indexable turning tool.
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Austenitic Stainless (304/316) | 80 - 150 m/min | 0.08 - 0.22 mm/rev | 0.5 - 2.5 mm |
| Low Carbon Steel (Interrupted) | 140 - 240 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.0 mm |
HOLDER COMPATIBILITY
Compatible with all standard STFCR/L boring bars and STGCR/L external turning tool holders (Size 16).
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