ZCC.CT SNMG190612 YBC251 Carbide Turning Inserts for Steel Machining
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ZCC.CT SNMG190616 YBC251 Turning Insert
Premium Industrial CVD Coated Carbide for High-Efficiency Steel Roughing
Product Overview
"Which CNC insert is most durable for heavy roughing of alloy steel with stable chip control and high feed rates?"
The ZCC.CT SNMG190616 YBC251 is a robust industrial solution engineered for the high-demand world of steel turning (ISO P). Utilizing the YBC251 grade—a multi-layer CVD coating (TiCN + Thick Al2O3)—this insert provides an exceptional balance between wear resistance and edge toughness. With a 1.6mm (R1.6) corner radius, it is specifically designed for heavy-duty roughing operations where edge strength is paramount to prevent chipping during high-depth-of-cut machining.
Key Performance Advantages
Technical Specifications
Square
0° Relief
Tolerance
Hole/Chip
19.05mm
6.35mm
1.6 Radius
| Standard | Metric Designation | Imperial Designation |
|---|---|---|
| ISO / ANSI | SNMG190616 | SNMG644 |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc m/min) | Feed Rate (fn mm/rev) |
|---|---|---|
| Carbon Steel / Alloy Steel | 120 - 280 | 0.30 - 0.70 |
| Steel Castings | 100 - 220 | 0.25 - 0.65 |
Compatible Tool Holders (SNMG 1906 Series):
Industrial Applications
- Heavy Roughing: Ideal for large components requiring high depth of cut.
- Interrupted Machining: High-toughness substrate handles impacts on welded or irregular surfaces.
- Steel Alloys: Exceptional in 4140, 1045, and 8620 steel types.
System Compatibility
Precision-ground to fit all standard ISO pocket tool holders. Designed for high-stability lathes and CNC centers with high rigidity to support the 1.6mm corner radius forces.
ZCC.CT Turning Grade Matrix
| Grade | Substrate Type | Application Focus |
|---|---|---|
| YBC152 | CVD | Finishing - High Speed |
| YBC251 | CVD | Universal - Medium/Roughing |
| YBC351 | CVD | Heavy Interrupted Cuts |
Verified Customer Feedback
"Massive Productivity Boost"
Replaced our standard 0.8mm inserts with these 1.6mm SNMGs. We increased our feed rate by 50% without any edge failure in cast steel.
— Gary M., USA 🇺🇸"Perfekt für schwere Bearbeitung"
Die YBC251 Beschichtung hält sehr lange bei hohen Temperaturen. Sehr stabil bei großen Schnitttiefen.
— Dieter K., Germany 🇩🇪"Ottima qualità"
Inserti professionali per asportazione pesante. Il raggio 1.6 è fantastico per sgrossatura.
— Alessandro V., Italy 🇮🇹Expert Industrial FAQ
Q: Is YBC251 better than YBC351 for heavy roughing?
A: YBC251 offers higher wear resistance at higher speeds. For severe interrupted cuts or low-speed impact roughing, YBC351 is tougher, but YBC251 is the better universal choice for high productivity.
Q: Why choose a 1.6mm radius over a 0.8mm?
A: The 1.6mm radius significantly increases edge strength and allows for a higher feed rate per revolution while maintaining better heat dissipation in the corner.
Q: Can I use this for stainless steel?
A: While optimized for ISO P (Steel), YBC251 can machine martensitic stainless steel. For austenitic stainless (304/316), the ZCC.CT YBM series is highly recommended.
Need Help With ZCC·CT Inserts?
Looking for a ZCC·CT equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This ZCC·CT insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.