ZCC.CT CNMG120408-PM YBM251 Carbide Turning Inserts for Stainless Steel
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ZCC.CT CNMG120408-PM YBM251: Industrial Carbide Turning Insert
Product Overview
The ZCC.CT CNMG120408-PM YBM251 is a high-performance turning insert specifically engineered for Stainless Steel (ISO M). Featuring the PM chipbreaker geometry, it offers exceptional chip control during medium-range cutting operations. The YBM251 grade utilizes an advanced CVD coating on a high-toughness substrate, ensuring stability even under fluctuating cutting temperatures and interrupted cuts.
Key Features
- ✔ Enhanced Thermal Stability: The CVD coating reduces chemical wear and heat buildup at the cutting edge.
- ✔ PM Chipbreaker Geometry: Designed for stable chip breaking in a wide range of feed rates and depths of cut.
- ✔ Grade YBM251: A balanced combination of wear resistance and toughness for general-purpose stainless machining.
Technical Specifications
Nomenclature Breakdown:
80° Rhombic
0° Relief
Tolerance
Hole/Chip
Edge 12.9mm
Thick 4.76
Radius 0.8
Chipbreaker
| Standard | Model Designation |
|---|---|
| Metric (ISO) | CNMG120408-PM |
| Imperial (ANSI) | CNMG 432-PM |
Recommended Cutting Data
| Material Group | Cutting Speed (Vc) m/min | Feed Rate (fn) mm/rev |
|---|---|---|
| Austenitic Stainless (304/316) | 140 - 240 | 0.15 - 0.50 |
| Duplex Stainless Steel | 80 - 160 | 0.15 - 0.40 |
Compatible External Tool Holders:
MCLNR/L 2020K12 | MCLNR/L 2525M12 | PCLNR/L 2525M12
View Compatible HoldersApplications & Compatibility
This insert is the primary choice for medium-duty turning in industries such as Aerospace, Oil & Gas, and Automotive. It is optimized for CNC Lathes and Turning Centers from manufacturers such as Mazak, Haas, DMG Mori, and Okuma.
ZCC.CT Grade Comparison
| Grade | Application Range |
|---|---|
| YBM151 | Finishing to light medium cutting at high speeds. |
| YBM251 | General purpose medium cutting; best balance of toughness/wear. |
| YBM351 | Roughing to heavy-duty interrupted cuts. |
Why Machine Shops Trust Us
We provide authentic ZCC.CT products directly from certified industrial supply chains, ensuring precision and reliability for your production line.
"The YBM251 grade is remarkably stable on duplex steel. Excellent tool life."
- Mark S., USA
"Ottima qualità. Rapporto qualità-prezzo imbattibile per l'acciaio inox."
- Giovanni R., Italy
"PMブレーカーの切りくず処理能力は非常に高いです。"
- Kenji T., Japan
FAQ - Frequently Asked Questions
Q1: Is the PM chipbreaker better than a general purpose one?
The PM is specifically optimized for medium turning of stainless steel, providing better chip evacuation than standard geometries.
Q2: Can I use this for dry cutting?
While the CVD coating handles heat well, we recommend using coolant when machining stainless steel to avoid chip welding.
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.