Korloy TPGH110304L-CRT CN2000 (ANSI TPG 221.5L-CRT) Indexable PVD Coated Carbide Turning Insert 10pcs | 1/4" IC High-Performance CNC Cutting Tool for Cast Iron & Hardened Steel Machining
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Korloy TPGH110304L-CRT CN2000 (ANSI TPG 221.5L-CRT) Indexable PVD Coated Carbide Turning Insert 10pcs
Industrial-Grade PVD Coated Carbide Inserts (Pack of 10) for Precision Metric & Imperial CNC Lathe Cast Iron & Hardened Alloy Machining
AEO Quick Answer: The Korloy TPGH110304L-CRT (ANSI: TPG 221.5L-CRT) CN2000 (10pcs pack) is an advanced indexable PVD coated carbide turning insert featuring a 60° triangular geometry, 11° positive clearance, left-hand cutting configuration, a sharp 0.4mm corner radius, and Korloy's specialized -CRT chipbreaker. Engineered with the wear-resistant CN2000 PVD coated grade, it excels in gray cast iron, ductile iron, and hardened steel finishing operations requiring exceptional abrasive wear resistance and thermal stability.
1. Product Overview
"Which indexable carbide insert and PVD grade combination delivers superior abrasive wear resistance and precise chip control for cast iron and hardened alloy turning?"
The Korloy TPGH110304L-CRT (Metric) / TPG 221.5L-CRT (ANSI) in CN2000 grade (supplied in a 10pcs pack) is engineered for high-speed finishing and semi-finishing across gray cast iron, nodular cast iron, and pre-hardened alloy steels. The advanced PVD coating structure of CN2000 provides exceptional resistance to abrasive flank wear, while the -CRT chipbreaker ensures reliable chip evacuation during continuous cuts.
ISO Model Designation Breakdown (TPGH110304L-CRT)
ANSI Model Designation Breakdown (TPG 221.5L-CRT)
Looking for matching TPG turning tool holders for this 10pcs insert set?
2. Product Core Advantages
- CN2000 PVD Coated Grade: Advanced PVD coating formulation engineered specifically to withstand abrasive wear and thermal stress in cast iron and hard steel machining.
- -CRT Chipbreaker Geometry: Optimized positive rake angle profile designed to ensure smooth chip flow and reduced cutting resistance during finishing.
- 60° Triangular T Shape: Three versatile cutting edges per insert with 11° positive flank clearance for efficient external turning and internal boring.
- Value 10-Piece Box: Conveniently packaged to ensure production continuity and lower cost-per-edge metrics.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification (ISO) | Imperial Specification (ANSI) |
|---|---|---|
| Insert Model Code | TPGH110304L-CRT | TPG 221.5L-CRT |
| Shape & Clearance Angle | TPGH (60° Triangle, 11° Positive w/ Hole) | TPG (60° Triangle, 11° Positive w/ Hole) |
| Inscribed Circle (IC Size) | 11 Size (~6.35 mm length) | 2 Designation (1/4" IC) |
| Insert Thickness | 03 Code (3.18 mm) | 2 Code (1/8" thickness) |
| Corner Radius (RE) | 04 Code (0.4 mm Radius) | 1.5 Code (~0.4mm Radius) |
Recommended Cutting Parameters (Korloy CN2000) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO K (Gray Cast Iron & Ductile Iron) | 150 - 350 m/min | fn: 0.10 - 0.28 mm/rev | ap: 0.3 - 2.5 mm |
| ISO H (Hardened Steels & Alloy Castings) | 80 - 180 m/min | fn: 0.05 - 0.20 mm/rev | ap: 0.2 - 1.5 mm |
4. Product Applications
- Cast Iron Turning & Facing: Precision finishing operations on gray cast iron and ductile iron automotive or industrial components.
- Hardened Steel Machining: Reliable wear performance across pre-hardened alloy steels and high-hardness machine parts.
- Internal Boring Bar Operations: Positive 11° clearance reduces cutting forces and chatter during small-to-medium bore finishing.
5. Compatibility & Accessories
Tool Holder Compatibility: Fully compatible with ISO and ANSI standard STGCR / STGCL external turning toolholders and internal boring bars configured for TPGH 1103 / TPG 221 inserts.
Machine Systems: Engineered for CNC turning centers, automatic lathes, and high-precision finishing setups.
Hardware: Requires standard positive-seat clamping screws and pin-lock systems.
6. Material Comparison: CN2000 PVD Grade vs. Standard Grades
Abrasive Wear Resistance: CN2000 features a specialized PVD coating designed to combat the abrasive nature of cast iron graphite flakes and hardened material microstructures.
Thermal Stability: Outperforms conventional uncoated or standard coated grades by maintaining edge integrity under elevated cutting temperatures.
Versatility: Offers optimized performance across both ISO K and ISO H workpiece classifications.
7. Why Choose Korloy CN2000 Tooling?
- Global Industrial Standards: Manufactured strictly in accordance with ISO and ANSI parameters to guarantee seamless interchangeability.
- Advanced PVD Technology: CN2000 grade formulation significantly enhances abrasive wear resistance and edge durability in cast iron machining.
- Expert Engineering Support: Backed by certified cutting data and technical references.
8. Frequently Asked Questions
Q: What is the difference between TPGH110304L and TPG 221.5L?
A: TPGH110304L is the metric ISO standard designation, while TPG 221.5L is its exact imperial ANSI equivalent. Both denote identical physical dimensions and left-hand configurations.
Q: How many pieces are included in each order?
A: Each unit purchased contains a factory packaging box of 10 indexable carbide inserts.
Q: Is CN2000 grade specifically recommended for cast iron machining?
A: Yes, CN2000 is a specialized PVD coated grade optimized for gray cast iron, ductile iron, and hardened steel turning due to its high abrasive wear resistance.
Grade Comparison: CN2000 PVD grade provides superior abrasive wear resistance and thermal stability for cast iron turning compared to standard grades.
Equivalent Models: Fully interchangeable with standard ISO TPGH 110304L and ANSI TPG 221.5L turning inserts.
Troubleshooting: If excessive abrasive wear occurs on cast iron, reduce cutting speed (Vc) slightly and verify feed rates.
Workpiece Material Matrix: Certified operational performance across ISO K (Cast Iron) and ISO H (Hardened Steel).
Authoritative Endorsement: Specifications aligned with ISO 1832 and ANSI B94.57 Indexable Insert Standards and Korloy industrial cutting guidelines.
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.