ZCC.CT SNMG190608-15 YBC251 Carbide Turning Inserts for Steel Roughing
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ZCC.CT SNMG190608-15 YBC251 Turning Insert
Heavy-Duty Steel Roughing with Advanced CVD Coating
Product Overview
"Which carbide insert is most reliable for stable roughing of carbon and alloy steels in large-scale CNC operations?"
The ZCC.CT SNMG190608-15 in YBC251 grade is a powerhouse for steel machining (ISO P). It features a robust -15 chipbreaker designed for large depth-of-cuts and high feed rates. The YBC251 grade utilizes a thick Al2O3 and TiN CVD coating over a tough substrate, providing an ideal balance between wear resistance and impact toughness.
Key Features
- Optimized for Roughing: Rugged edge design handles heavy mechanical loads.
- High MRR: Maximize material removal rates with the stable -15 geometry.
- Heat Resistance: CVD coating protects the substrate during high-speed dry cutting.
- Extended Tool Life: Superior resistance to plastic deformation.
Technical Specifications
Square
0° Relief
Tolerance
Hole/Chip
19.05mm
6.35mm
0.8mm Rad
Roughing
| Parameter | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Model Number | SNMG190608-15 | SNMG642-15 |
| Inscribed Circle | 19.05 mm | 0.75 inch |
| Thickness | 6.35 mm | 0.25 inch |
Recommended Cutting Parameters
| Workpiece Material | Speed (Vc m/min) | Feed (f mm/rev) |
|---|---|---|
| Carbon Steel | 180 - 320 | 0.30 - 0.70 |
| Alloy Steel | 120 - 260 | 0.25 - 0.60 |
Compatible Tool Holders: Optimized for use with PSSNR / MSSNR 3232P19 series tool holders.
Applications & Compatibility
Primary Industry: Heavy machinery, automotive components, and energy sector. Suitable for large diameter shafts, gear blanks, and structural steel components.
Machine Type: CNC Turning Centers, Lathes, and Multi-Tasking machines.
ZCC.CT Grade Matrix (Steel)
Finishing / High Speed
General Roughing (Standard)
Heavy Interrupted Cut
Why Choose ZCC.CT YBC251?
Market-leading price-to-performance ratio with global industrial certification.
"Solid performance on 4140 alloy. The -15 chipbreaker handles deep cuts without vibration."
— Robert S., USA
"Beste Standzeit bei der Schruppbearbeitung von Stahl."
— Klaus M., Germany
"Excellent product and fast shipping to Milan."
— Giovanni F., Italy
Industrial FAQ
Q: Is the YBC251 grade suitable for stainless steel?
A: While YBC251 can machine some stainless steels, it is primarily optimized for ISO P (Steel). For ISO M (Stainless), we recommend YBM251.
Q: What does the -15 designation stand for?
A: The -15 is the chipbreaker style, specifically engineered by ZCC.CT for high-strength roughing applications.
Grade Comparison Tip: Use YBC251 for general purpose; switch to YBC151 if you need higher speeds at the cost of toughness. Troubleshooting: If crater wear occurs, decrease cutting speed. If the edge chips, decrease the feed rate or switch to YBC351.
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.