Mitsubishi DCMT11T308-MV US735 Carbide Turning Insert for Stainless Steel
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DCMT11T308-MV US735
High-Impact Stainless Specialist | US735 CVD Toughness | MV Geometry
Built for Maximum Durability in Gummy Materials
US735 Grade (The Tough CVD): The US735 grade is specifically developed for the **M-Class (Stainless Steel)**. It features a high-toughness substrate and a CVD coating designed to resist "Notch Wear" and "Thermal Fatigue." This makes it the premier choice for machining stainless steel with **interrupted cuts** (like cross-holes or splines) where other grades might chip or crack.
MV Chipbreaker (Versatile Medium): The MV (Medium-V) chipbreaker is designed for stability. In the 11T3 size, it provides aggressive chip control, preventing the long, stringy chips common in austenitic stainless steel from wrapping around the tool or workpiece.
0.8mm Nose Radius (Impact Strength): The "08" (1/32") radius is engineered for strength. It can withstand significantly higher feed rates and deeper cuts than 0.4mm versions, while also being more resistant to mechanical shock in heavy semi-finishing applications.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCMT11T308-MV | 9.525 mm | 3.97 mm | 0.80 mm |
| Imperial | DCMT32.52-MV | 3/8" | 5/32" | 0.0315" (1/32") |
Recommended Machining Parameters
*US735 requires high volumes of coolant to prevent work-hardening of the stainless surface.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Austenitic (304/316) | 80 - 150 m/min | 0.10 - 0.30 mm/r | 0.40 - 2.50 mm |
| Duplex/Super Alloys | 40 - 90 m/min | 0.08 - 0.20 mm/r | 0.30 - 1.80 mm |
Compatible Tool Holders
Maximum performance for 11-series SDJCR/L or SDUCR/L holders:
Shop SDJCR 11 HoldersPro-Tip: US735 vs. NX2525
US735 (CVD Carbide): Your reliability choice. Use this for all stainless steels, interrupted cuts, and jobs where tool failure must be prevented at all costs.
NX2525 (Cermet): Only for final finishing on carbon steel. Never use Cermet on stainless steel, as the gummy material will cause massive built-up edge and shatter the tool.
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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.