ZCC.CT APKT160408-PM YBD252 Carbide Milling Inserts for Cast Iron
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ZCC.CT APKT160408-PM YBD252 Inserts
Tough CVD Coated Carbide for Interrupted Cast Iron Machining
Product Overview
"Which milling insert grade is best for roughing to semi-finishing ductile iron when dealing with interrupted cuts and abrasive scales?"
The ZCC.CT APKT160408-PM YBD252 is the industrial answer to demanding Cast Iron (ISO K) applications. While the YBD152 is optimized for pure speed, the YBD252 grade provides the added toughness required for heavy-duty milling, ductile iron (GGG), and components with uneven surfaces. Featuring a thick CVD Al2O3 + TiCN coating, this insert withstands the intense abrasive wear of iron dust while the PM (Medium Duty) chipbreaker ensures reliable chip evacuation and edge security during high-feed operations.
Key Features
- ✔ Superior Edge Toughness: Specialized substrate designed to resist chipping during heavy interrupted milling.
- ✔ Abrasive Wear Resistance: Thick CVD coating protects the carbide from the high-silicon content found in gray and nodular iron.
- ✔ PM Geometry: A stable cutting edge with balanced rake angles reduces power consumption while maintaining strength.
Technical Specifications
Parallelogram
11° Relief
Tolerance
Screw Clamp
16mm Edge
4.76mm Thick
0.8mm Radius
Medium Cut
| ISO Model | Metric (mm) | Imperial (inch) |
|---|---|---|
| APKT 160408 | 16.5 x 4.76 x 0.8 | 0.650" x 3/16" x 0.031" |
Recommended Cutting Parameters (YBD252)
| Material Group | Speed (Vc) | Feed (fz) |
|---|---|---|
| Gray Cast Iron (GG) | 200 - 400 m/min | 0.15 - 0.45 mm/z |
| Ductile Iron (GGG) | 150 - 300 m/min | 0.12 - 0.38 mm/z |
Compatible Cutters: EMP01 / EMP02 / FMA07 Series
Optimized for BAP400R style 90° square shoulder face mills and end mills.
Shop ZCC.CT Toolholders →Primary Applications
- Rough Machining of Nodular and Gray Iron
- Face Milling Large Casting Bases
- Machining Automotive Components (Cylinder Blocks)
- Heavy Interrupted Cut Milling
Machine Compatibility
Fits all standard APKT1604 toolholders. Recommended for high-torque CNC machines and rigid setups due to the toughness of the YBD252 grade.
ZCC.CT Grade Material Comparison
YBD252 vs. YBD152: While YBD152 is your first choice for high-speed, stable finishing in gray iron, YBD252 is the mandatory choice for reliability. If your workpiece has cast skin, sand inclusions, or involves heavy interruptions, YBD252 provides the fracture toughness YBD152 lacks. It is the "safety first" grade for medium machining of all cast iron types.
Customer Success Stories
"The best insert for our ductile iron housings. We used to chip edges every 5 parts, now we run full shifts with YBD252."
— Robert B., USA"Hervorragende Standzeit in GGG50. Die PM-Geometrie bricht die Späne sehr gut."
— Hans W., Germany"Ottima resistenza all'usura abrasiva. Prezzo molto competitivo."
— Paolo G., Italy"Reliable ZCC quality. Consistent performance in gray iron mass production."
— Sato M., JapanFrequently Asked Questions
Can YBD252 handle steel?
YBD252 is specialized for Cast Iron. While it can cut steel in a pinch, its coating and substrate are optimized for the abrasive silicon in iron. For steel, use YBC301 or YBC302.
Is coolant required for YBD252?
CVD coatings handle heat well. Dry milling is often preferred for Gray Iron to prevent thermal shock, but Ductile Iron may benefit from an air blast or MQL.
Material Pro Tip: Beating the Scale
When milling raw castings with APKT160408-PM YBD252, ensure your depth of cut (Ap) is deep enough to penetrate beneath the abrasive surface scale. This allows the tough substrate to work against clean metal, significantly extending tool life compared to "grazing" the surface.
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.