Mitsubishi TCMT16T304 UC5115 | CVD Carbide Insert for Cast Iron
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TCMT16T304 UC5115
Mitsubishi Materials | The Specialist for Cast Iron Turning (ISO K)
The Mitsubishi TCMT16T304 UC5115 is a high-performance CVD coated carbide insert designed for high-speed machining of gray and ductile cast iron. Utilizing the advanced UC5115 grade, this insert provides extreme hardness and thermal stability. As a critical long-tail precision tool, it is the industry benchmark for reducing flank wear in abrasive cast iron turning applications.
CVD Multi-Layer Coating | High-Speed Performance | ISO K category
Code Identification Breakdown
Triangular Shape
7° Relief Angle
M-Class Precision
Countersink Hole
16.5mm Edge
3.97mm Thick
0.4mm Radius
Dimensional Comparison Table
| Attribute | ISO (Metric) Model | ANSI (Inch) Model |
|---|---|---|
| Model Reference | TCMT16T304 | TCMT 32.51 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Thickness (S) | 3.97 mm | 0.156" |
| Nose Radius (RE) | 0.4 mm | 0.016" |
UC5115 CVD Grade Technology
The UC5115 grade features a specialized thick CVD coating designed for the high-temperature environment of cast iron machining. It offers exceptional resistance to abrasive flank wear and plastic deformation. This makes it the premier choice for gray cast iron and high-tensile ductile iron turning.
Positive Chipbreaker Geometry
Designed with a positive 7° relief angle, this indexable turning insert reduces cutting forces significantly. The chipbreaker is optimized for stable iron turning, ensuring consistent chip evacuation even during high-velocity finishing and semi-finishing passes.
Technical Cutting Data
| Material Group | Cutting Speed ($v_c$) | Feed per Rev ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Gray Cast Iron (Class 30/35) | 180 - 450 m/min | 0.10 - 0.30 mm/rev | 0.5 - 3.0 mm |
| Ductile Iron (60-40-18) | 150 - 300 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.5 mm |
HOLDER COMPATIBILITY
Compatible with all standard STFCR/L boring bars and STGCR/L external tool holders (Size 16).
Shop Compatible Holders →
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.