Mitsubishi DCMT11T304 UE6020 Carbide Turning Insert for Steel (10pcs)
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DCMT11T304 UE6020
General Steel Specialist | UE6020 CVD Coating | 55° Diamond Profile
Maximum Versatility for Steel Alloys
UE6020 Grade (The Steel Workhorse): Mitsubishi’s UE6020 is a premier CVD-coated carbide grade designed for the stable machining of carbon and alloy steels (P10–P35 range). The multi-layer coating (TiCN+Al2O3+TiN) provides an exceptional thermal barrier, allowing for high-speed operation while protecting the substrate from plastic deformation.
DCMT Geometry (Positive Chipbreaker): The 55-degree diamond shape with a 7-degree positive relief angle ensures low cutting resistance. This geometry "shears" the steel cleanly, significantly improving surface finish and reducing heat buildup in the workpiece.
0.4mm Precision Radius: The "04" radius is the universal choice for finishing. It provides high dimensional accuracy and low radial force, making it ideal for precision profiling and finishing passes on components with tight tolerances.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T304 | 9.525 mm | 3.97 mm | 0.40 mm |
| Imperial | DCMT32.51 | 3/8" | 5/32" | 0.0157" (1/64") |
Recommended Machining Parameters
*Optimized for high-speed continuous turning in carbon and alloy steels.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Carbon Steel (1045/S45C) | 180 - 350 m/min | 0.08 - 0.22 mm/r | 0.30 - 2.00 mm |
| Alloy Steel (4140/SCM440) | 150 - 280 m/min | 0.08 - 0.18 mm/r | 0.30 - 1.50 mm |
Compatible Tooling
Ensure maximum rigidity 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. It offers the best wear resistance and highest cutting speeds.
US735 (Stainless Specialist): If you switch to Stainless Steel or encounter heavily interrupted cuts (hexagons/flats), switch to US735 for its superior fracture toughness.
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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.