Mitsubishi DCMT11T308 UE6020 Carbide Turning Insert for Steel (10pcs)
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DCMT11T308 UE6020
High-Strength Steel Specialist | UE6020 CVD Grade | 0.8mm Radius
Optimized for High-Feed Steel Machining
UE6020 Grade (Advanced CVD Coating): The UE6020 is Mitsubishi’s premier choice for general steel turning (P10-P30). It utilizes a thick TiCN + Al2O3 + TiN coating layers that offer a superior thermal barrier. This grade is engineered to resist crater wear and plastic deformation, ensuring long tool life during high-speed continuous machining of carbon and alloy steels.
DCMT Geometry (Positive Chipbreaker): The 55-degree diamond shape with a 7-degree positive relief angle reduces cutting resistance. This "free-cutting" geometry is critical for reducing heat generation and preventing work-hardening, even during deeper cuts.
0.8mm Radius (The Robust Choice): The "08" nose radius is designed for durability. It allows for higher feed rates than the 0.4mm version and provides a stronger edge that can withstand slight scale or surface irregularities in semi-roughing applications.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T308 | 9.525 mm | 3.97 mm | 0.80 mm |
| Imperial | DCMT32.52 | 3/8" | 5/32" | 0.0315" (1/32") |
Recommended Machining Parameters
*The 0.8mm radius allows for increased feed rates. Ensure workpiece stability for maximum results.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045/S45C) | 180 - 320 m/min | 0.15 - 0.35 mm/r | 0.50 - 2.50 mm |
| Alloy Steel (4140/SCM440) | 150 - 280 m/min | 0.12 - 0.30 mm/r | 0.50 - 2.00 mm |
Compatible Tool Holders
Maximum rigidity for semi-roughing with 11-series SDJCR/L or SDUCR/L holders:
Shop SDJCR 11 HoldersPro-Tip: UE6020 vs. US735
UE6020 (Steel Specialist): Your first choice for carbon steel production. It offers the highest wear resistance for continuous long-path turning.
US735 (Stainless Specialist): If your job involves Stainless Steel or heavy interrupted cuts (like turning a shaft with a keyway), switch to US735 for its superior fracture toughness.
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