Mitsubishi DCMT11T308 US735 Carbide Turning Insert for Stainless Steel (10pcs)
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DCMT11T308 US735
High-Strength CVD Carbide | Stainless Steel Workhorse | 0.8mm Radius
Engineered for High-Load Stainless Machining
US735 Grade (CVD Coating Technology): The US735 is Mitsubishi’s most reliable grade for stainless steel turning. It utilizes a thick TiCN + Al2O3 CVD coating that provides an effective thermal barrier against the heat-prone nature of stainless alloys. Its high fracture toughness allows it to handle interrupted cuts and rough surface scales without edge failure.
DCMT Geometry (Positive Chip Control): The 55-degree diamond shape with a 7-degree relief angle ensures low cutting resistance. This geometry is designed to "shear" the material, reducing the work-hardening effect on the workpiece—a critical factor when machining materials like 304 and 316 stainless.
0.8mm Radius (High Edge Strength): The "08" radius is the robust choice. It provides a larger contact area which dissipates heat more effectively and allows for higher feed rates than 0.4mm inserts, making it ideal for semi-finishing passes.
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 productivity and feed rates. Ensure stable setup for maximum tool life.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| 300 Series Stainless | 70 - 160 m/min | 0.10 - 0.30 mm/r | 0.50 - 2.50 mm |
| Duplex Stainless Steel | 40 - 100 m/min | 0.08 - 0.25 mm/r | 0.50 - 2.00 mm |
Compatible Tool Holders
Maximum productivity for external profiling and internal boring with 11-series holders:
Shop SDJCR 11 HoldersPro-Tip: US735 vs. NX2525
US735 (CVD Carbide): The impact and heat specialist. Choose this for Stainless Steels and high-load applications. It survives where other grades fail.
NX2525 (Cermet): Designed for mirror-finishes on Carbon Steels only. Never use Cermet on stainless steel, as the chemical affinity will lead to rapid cratering and edge failure.
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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.