ZCC.CT TCMT16T304-52 YBC251 Carbide Turning Inserts for Steel Machining
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ZCC.CT TCMT16T304-52 YBC251 Turning Insert
Advanced CVD Coating for Versatile Steel Semi-Finishing
Product Overview
"Which carbide insert provides the best balance of toughness and wear resistance for semi-finishing alloy and carbon steels under general conditions?"
The ZCC.CT TCMT16T304-52 YBC251 is a premier triangular insert engineered for ISO P (Steel) applications. Utilizing the YBC251 grade—which features a thick Al2O3 and TiCN CVD coating—this tool offers an exceptional balance of edge strength and wear resistance. The -52 chipbreaker is specifically designed for semi-finishing, providing stable chip control even at fluctuating depths of cut, making it the most versatile choice for general CNC workshop environments.
Industrial-Grade Advantages
Technical Specifications
ISO Model Designation Decoding
Triangular
7° Relief
Tolerance
Hole/Chip
16mm Edge
3.97mm Thk
0.4mm Rad
Semi-Finish
| Standard | Model Number | Dimensions (Size-Thick-Rad) |
|---|---|---|
| Metric (ISO) | TCMT16T304-52 | 16.5mm - 3.97mm - 0.4mm |
| Imperial (ANSI) | TCMT32.51-52 | 3/8" I.C. - 1/8" Thk - 1/64" Rad |
Recommended Cutting Parameters (YBC251)
| Workpiece Material | Speed (Vc m/min) | Feed (f mm/rev) |
|---|---|---|
| Carbon Steel (HB180-225) | 180 - 350 | 0.10 - 0.35 |
| Alloy Steel (HB225-325) | 150 - 300 | 0.10 - 0.30 |
Compatible Boring Bars / Turning Holders:
Primary Applications
- General Engineering: Perfect for 45# steel, 40Cr, and other common structural steels.
- Semi-Finishing: Optimized for removing medium stock while maintaining a clean surface finish.
- CNC Lathe Operations: Suitable for both longitudinal turning and facing.
Device Compatibility
Compatible with all major CNC turning centers (Mazak, Haas, DMG Mori, Okuma) and conventional lathes using standard 7-degree positive triangular tool pockets.
ZCC.CT Steel Grade Comparison Tip
| Grade | Strategy | Best For... |
|---|---|---|
| YBC151 | Finishing | High Speed / Dry Cutting |
| YBC251 (Current) | Versatility | General Purpose / Semi-Finish |
| YBC351 | Roughing | Heavy Interruption / Stability |
Machinist Testimonials
"Unbeatable Versatility"
We use the YBC251 for almost all our alloy steel jobs. It handles minor interruptions way better than the high-speed grades.
— David K., Germany 🇩🇪"Great Chip Control"
The -52 breaker is excellent. No birdnesting even on our older manual lathes. Highly recommend for 4140 steel.
— James W., USA 🇺🇸"Solid and Consistent"
Consistenza fantastica tra i lotti. Lo usiamo per pezzi meccanici di precisione e non ci delude mai.
— Marco P., Italy 🇮🇹Expert Technical FAQ
Q: Is this insert suitable for stainless steel?
A: While YBC251 can machine some stainless steels in a pinch, ZCC.CT's YBM series (like YBM251) is specifically optimized for the work-hardening properties of stainless steel.
Q: What makes the -52 chipbreaker special?
A: The -52 geometry features a medium-sized chip-breaking groove that provides low cutting resistance, which is vital for maintaining accuracy on longer workpieces.
Q: How does this compare to Sandvik or Kennametal equivalents?
A: This is equivalent to Sandvik's GC4325 or Kennametal's KCP25B, offering similar productivity at a significantly more competitive industrial price point.
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.