ZCC.CT SCMT120408-HR YBC152 square carbide roughing insert for steel lathe turning

ZCC.CT SCMT120408-HR YBC152 Carbide Turning Inserts for Steel Roughing

$79.14 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

ZCC.CT SCMT120408-HR YBC152 Turning Insert

Next-Gen CVD Grade for Maximum Removal Rates in Steel Roughing

Product Overview

"Which carbide insert grade provides the best tool life for heavy-duty roughing of carbon and alloy steels under high-speed conditions?"

The ZCC.CT SCMT120408-HR in the advanced YBC152 grade is a powerhouse for ISO P (Steel) machining. Featuring a specialized thick Al2O3 CVD coating, the YBC152 grade is engineered for high-speed stability and exceptional wear resistance. The HR Chipbreaker (Heavy Roughing) is characterized by its reinforced cutting edge and wide chip pocket, specifically designed to handle large Depths of Cut (DOC) and high feed rates without sacrificing tool integrity.

Key Performance Advantages

● YBC152 Grade Technology: Enhanced thermal stability ensures consistent performance during high-speed dry or wet machining.
● HR Heavy Roughing Geometry: The robust edge design prevents chipping even when encountering forging scales or casting skins.
● Square Stability: 90° S-shape provides high seating stability in the tool holder under heavy radial forces.

Technical Specifications

ISO Nomenclature Decoding

S
Square
C
7° Relief
M
Tolerance
T
Hole
12
12.7mm
04
4.76mm
08
0.8 Rad
HR
Roughing
Parameter Metric (ISO) Imperial (ANSI)
Insert Code SCMT120408-HR SCMT 432-HR
I.C. Size 12.7 mm 0.50 inch

Recommended Cutting Parameters

Steel Type Vc (m/min) fn (mm/r)
Soft Steel / Carbon Steel 220 - 480 0.25 - 0.70
Alloy Steel / Tool Steel 160 - 350 0.20 - 0.60

Seating & Compatibility:

Fits Standard SSDCN / SSBCR / SSGCR 1204 Holders

Find SCMT12 Holders →

ZCC.CT P-Grade Comparison Matrix

Grade Coating Ideal Conditions Speed Potential
YBC152 (This) CVD (Thick Al2O3) High Speed / Roughing Highest
YBC252 CVD General Purpose Medium-High
YBC352 CVD Heavy Interrupted Moderate

Trusted by Machinists Worldwide

★★★★★

"The HR chipbreaker is unmatched for roughing out large parts. YBC152 lasts 20% longer than the previous 151 grade in our alloy steel tests."

— Robert D., USA 🇺🇸
★★★★★

"YBC152 ist hervorragend für die Hochgeschwindigkeitsbearbeitung. Sehr stabil und zuverlässig."

— Dieter S., Germany 🇩🇪
★★★★★

"Unbeatable value. Using it for heavy roughing on forgings, it handles the intermittent crust very well."

— Marco V., Italy 🇮🇹
★★★★☆

"Very stable under load. Fast shipping and high quality from ZCC.CT."

— Tanaka H., Japan 🇯🇵

Machinist Support (FAQ)

Q: What is the difference between YBC151 and YBC152?

A: YBC152 is the upgraded generation featuring a thicker Al2O3 layer and improved substrate, offering significantly higher wear resistance at elevated temperatures.

Q: Is the HR chipbreaker suitable for finishing?

A: No, HR is designed for roughing (large DOC). For finishing, please look for the HF or HM chipbreakers which offer finer chip control at lower feed rates.

Q: Can these be used for stainless steel?

A: While they can machine stainless in a pinch, YBC grades are optimized for Steel (P). For Stainless Steel (M), we recommend ZCC.CT YBM grades.

Equivalent Models: Sandvik SCMT 432-PR/QR, Kyocera SCMT 432-HR, Mitsubishi SCMT 432-RP.

Troubleshooting: If chipping occurs, reduce feed rate (fn). If the cutting edge wears prematurely, ensure sufficient coolant or reduce cutting speed (Vc).

Workpiece Matrix: Carbon Steel (P10-P25), Alloy Steel (P10-P25), Cast Steel.

 

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

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.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

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.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

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.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

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.

What is your international shipping policy and typical lead time for orders?

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.

How do you guarantee the quality and tolerance precision of your CNC tools?

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.