Mitsubishi TNMA160408 UC5115 | CVD Carbide Cast Iron Insert
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TNMA160408 UC5115
Mitsubishi Materials | The Cast Iron Turning Authority
The Mitsubishi TNMA160408 UC5115 is a robust CVD coated carbide insert designed for high-efficiency turning of cast iron. Utilizing the UC5115 grade with thick Al2O3 coating technology, this insert offers extreme thermal protection and crater wear resistance. The 0.8mm radius combined with a flat-top (No Chipbreaker) design makes it a top-tier long-tail industrial tool for heavy-duty machining of gray and ductile iron.
High-Speed Cast Iron | K-Class Carbide | Enhanced Edge Strength
Designation Code Decipher
Triangular Shape
0° Relief Angle
M-Class Tolerance
Flat Top (No Breaker)
16.5mm Edge
4.76mm Thick
0.8mm Radius
International Standard Reference
| Feature | ISO (Metric) | ANSI (Inch) |
|---|---|---|
| Part Number | TNMA160408 | TNMA 332 |
| Inscribed Circle (IC) | 9.525 mm | 0.375" |
| Nose Radius (RE) | 0.8 mm | 0.031" |
UC5115 CVD Grade
The UC5115 grade is a specialized CVD turning insert material featuring a thick alumina coating layer. This provides exceptional resistance to high-temperature oxidation and flank wear when machining abrasive cast iron. It is optimized for stable turning in continuous cutting conditions.
TNMA Flat-Top Geometry
The TNMA flat-top geometry is designed without a chipbreaker to maximize the edge strength of this indexable turning insert. Because cast iron produces brittle, segmented chips, the flat-top design ensures the tool can handle heavy loads without the risk of chipbreaker erosion or edge deformation.
Recommended Cutting Parameters
| Material Group | Speed ($v_c$) | Feed ($f$) | DOC ($a_p$) |
|---|---|---|---|
| Gray Cast Iron (FC300) | 200 - 450 m/min | 0.15 - 0.50 mm/rev | 1.0 - 5.0 mm |
| Ductile Cast Iron (FCD) | 150 - 350 m/min | 0.15 - 0.45 mm/rev | 0.5 - 4.5 mm |
MATCHING TOOL HOLDERS
Perfectly suited for MTJNR/L or WTJNR/L top-clamp tool holders (Size 16).
Browse Size 16 Tool 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.