Mitsubishi CCMT120404 UE6020 CVD Coated Carbide Turning Insert (10pcs)
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CCMT120404 UE6020
High-Stability Steel Turning | CVD Coated Carbide | 0.4mm Radius
Material Science & Geometry
UE6020 Grade (CVD Coated Carbide): The UE6020 is a high-performance **CVD (Chemical Vapor Deposition)** coated carbide specifically optimized for Steel Machining (ISO P20-P35). It features a multi-layer coating system: TiCN + Al2O3 + TiN. The thick Aluminum Oxide (Al2O3) layer acts as a thermal shield, protecting the carbide substrate from extreme heat during heavy-duty turning, ensuring maximum tool life in carbon and alloy steels.
CCMT 12 Size (Structural Mass): The 12mm size class is designed for larger SCLCR 12 tool holders and heavy boring bars. The larger surface area of the insert allows for better heat dissipation and greater resistance to the cutting forces encountered in deeper finishing and semi-finishing passes. The 0.4mm radius ensures a sharp, clean cut with low radial pressure.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMT120404 | 12.70 mm | 4.76 mm | 0.40 mm |
| Imperial | CCMT431 | 0.500" (1/2") | 0.187" (3/16") | 0.0157" (1/64") |
Recommended Cutting Parameters
*The 1204 thickness allows for more aggressive depths of cut compared to the 09T3 series. Use coolant for optimal chip control.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045) | 160 - 320 m/min | 0.08 - 0.25 mm/r | 0.40 - 2.50 mm |
| Alloy Steel (4140) | 140 - 280 m/min | 0.05 - 0.20 mm/r | 0.30 - 2.00 mm |
Required Tool Holder
Maximum stability for SCLCR/L 12 external tools and large-diameter boring bars:
Shop SCLCR 12 HoldersGrade Comparison: UE6020 vs NX2525
UE6020 (CVD Carbide): The best choice for Productivity & Durability in steel. Use this for general turning where you need a tool that can "survive" different steel grades and higher depths of cut.
NX2525 (Cermet): Choose cermet only for High-Gloss Finishing. It is more brittle than UE6020 but provides a "mirror" finish that carbide cannot match. Not recommended for heavy semi-roughing.
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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.