ZCC.CT KNUX160405R11 YBM351 Stainless Steel Turning Inserts
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ZCC.CT KNUX160405R11 YBM351 Turning Insert
The Ultimate Solution for Stainless Steel Roughing & Interrupted Cutting
Product Overview
The ZCC.CT KNUX160405R11 in YBM351 grade is engineered to dominate the most challenging stainless steel environments. While the R11 geometry provides aggressive chip breaking, the YBM351 grade utilizes a unique CVD coating technology that combines high toughness with superior thermal stability. It is specifically optimized for M30-M40 range applications, making it the preferred choice for roughing and semi-finishing where tool edge security is paramount.
Core Performance Features
- ✔ YBM351 Grade: Exceptional resistance to thermal cracking and mechanical shock during interrupted cuts.
- ✔ CVD Al2O3-TiCN Coating: Provides a robust barrier against chemical wear and built-up edge (BUE).
- ✔ R11 Chipbreaker: Specifically designed for stable chip control in ductile stainless steels at high feed rates.
Technical Specifications
Decoding KNUX160405R11
Shape
Clearance
Tolerance
Special
Size
Thick
Right/Chip
| Parameter | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Edge Length | 16.5 mm | 0.650 in |
| Thickness | 4.76 mm | 0.187 in |
| Nose Radius | 0.5 mm | 0.020 in |
Cutting Parameters for Stainless Steel (M)
| Material State | Speed (Vc) | Feed (fn) |
|---|---|---|
| 304/316 Roughing | 120 - 200 m/min | 0.15 - 0.40 mm/rev |
| Interrupted Cut | 80 - 140 m/min | 0.12 - 0.30 mm/rev |
Primary Applications
- Pumps, valves, and flange components.
- Austenitic stainless steel (300 series).
- Duplex and super duplex stainless steel.
- High-temp alloys and heat-resistant steels.
Compatibility
- All CNC Lathes with ISO standard turrets.
- Heavy-duty rough turning operations.
- Optimized for Right-Hand (R) cutting directions.
ZCC.CT Stainless Steel Grade Matrix
| Grade | Application Range | Key Property |
|---|---|---|
| YBM351 (This) | M30 - M40 (Roughing) | Maximum Edge Toughness |
| YBM251 | M20 - M30 (Medium) | Universal Grade |
| YBM151 | M10 - M20 (Finishing) | High Wear Resistance |
Global Machinist Reviews
⭐⭐⭐⭐⭐
"YBM351 saved our flange project. The interrupted cut on cast stainless was destroying other inserts."
— Thomas H., USA 🇺🇸⭐⭐⭐⭐⭐
"Beste Wahl für 1.4301 Edelstahl. Sehr zäh und langlebig."
— Klaus S., Germany 🇩🇪⭐⭐⭐⭐⭐
"Excellent chip breaking with the R11. No more bird nests in the machine."
— Hiroshi Y., Japan 🇯🇵⭐⭐⭐⭐⭐
"ZCC.CT provides premium performance at a fair price. YBM351 is consistent."
— Roberto P., Italy 🇮🇹Frequently Asked Questions
Q: Is the R11 chipbreaker better than R12 for stainless?
A: R11 is generally more aggressive and suited for roughing/medium cuts where chip control is difficult. R12 is often used for medium-to-finishing.
Q: Can I use this for dry machining stainless steel?
A: While the CVD coating has high thermal resistance, coolant is highly recommended for stainless steel to prevent work hardening and BUE.
Q: What makes YBM351 different from YBC grades?
A: YBC is for Steel (P). YBM is for Stainless (M). The YBM substrate is much more ductile to handle the high heat and pressure of stainless steel turning.
Professional Tip: For stainless steel roughing, ensure your feed rate is high enough to stay under the work-hardened layer from the previous pass. YBM351 is built to handle the extra load.
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.