Korloy Indexable Turning Insert CNMG190612-HS PC9030 | CNMG 643-HS (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel and Heat-Resistant Alloy Machining - 10pcs Box
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Korloy Indexable Turning Insert CNMG190612-HS PC9030 | CNMG 643-HS (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel & High-Temp Alloy Machining - 10pcs Box
High-Performance ISO-Standard 80° Rhombic Negative Indexable Turning Cutters for Industrial CNC Austenitic Stainless Steels, Superalloys & Corrosion-Resistant Metals
1. Product Overview
"Which indexable turning insert is best suited for CNC stainless steel and high-temperature alloy operations requiring exceptional thermal shock resistance, low cutting forces to prevent work hardening, and precise chip control during continuous to interrupted cutting?" CNC programmers and machine shop supervisors frequently select the Korloy CNMG190612-HS PC9030. This industrial-grade indexable carbide turning insert features an advanced high-performance PC9030 PVD-coated grade optimized for stainless steels and superalloys, combined with an 80° rhombic negative geometry, a balanced 1.2mm corner radius for optimal edge strength and surface finish, and a specialized -HS chipbreaker engineered to provide smooth chip evacuation, reduced heat generation, and superior surface integrity during precision turning and semi-finishing passes.
2. Product Key Features
- PC9030 Advanced PVD Grade Technology: A tough, fine-grained carbide substrate paired with a multi-layer nano-structured PVD coating engineered specifically to resist thermal cracking, notch wear, and built-up edge in stainless steel turning.
- Optimized -HS Chipbreaker Geometry: Positive sharp rake angle design with a wide breaker groove engineered to minimize cutting resistance and prevent work hardening in gummy materials.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure pin-and-clamp locking and exact interchangeability across standard negative external turning tool holders and boring bars.
- Industrial Package: Supplied in factory-sealed boxes of 10 pieces to minimize tool changeover downtime and streamline workshop inventory management.
3. Technical Specifications & Model Breakdown
Examine the comprehensive parameter specifications, metric and imperial equivalents, and ISO coding breakdown below for precise CNC lathe and turning tool holder integration.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | CNMG190612-HS | CNMG 643-HS |
| Inscribed Circle / Size | 19.05 mm (19 series / 3/4" scale) | 3/4" nominal (6 series / 19.05mm equivalent scale) |
| Insert Thickness (06) | 6.35 mm (1/4" thickness class) | 0.250 inch (4 series / 1/4" scale) |
| Corner Radius (12) | 1.2 mm | 0.0469 inch (3 radius designation scale / 3/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic & Duplex Stainless Steels (M10 - M30) | 140 - 240 | 0.20 - 0.45 |
| Nickel & Cobalt Superalloys (S10 - S30) | 50 - 110 | 0.15 - 0.35 |
Need matching MCLNR/L or PCLNR/L external turning tool holders for your 1906 CNMG inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy CNMG190612-HS PC9030 insert performs exceptionally across aerospace, petrochemical, and marine engineering sectors:
- Petrochemical Valve Shafts: Precision turning on corrosion-resistant stainless steel and duplex alloy industrial valves.
- Aerospace Engine Components: Semi-finishing passes on heat-resistant nickel-base superalloy turbine shafts and rings.
- Marine Drive Shaft Machining: High-integrity turning on large stainless steel marine propulsion components.
5. Compatibility
Designed to integrate seamlessly into standard negative industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with MCLNR/L, PCLNR/L, and MWLNR/L negative lever-lock and pin-lock external tool holders configured for CNMG 1906 series inserts.
- CNC Machinery: Optimized for CNC lathes, horizontal turning centers, and multi-axis turning-milling centers processing tough alloys.
6. Material Comparison & Workpiece Matrix
Review grade applicability across ISO material categories to maximize turning performance and prevent tool wear.
| ISO Material Category | Target Materials | PC9030 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and duplex stainless steels | Excellent (Dedicated PVD Grade for Stainless Steel Machining) |
| S (Superalloys) | Inconel, Waspaloy, Hastelloy, titanium alloys | Good (High thermal wear resistance for heat-resistant alloys) |
| P (Steel) | Low alloy steels | Moderate (Applicable for light steel turning applications) |
7. Why Choose Us
100% Genuine Guarantee
Sourced directly from authorized industrial distribution channels, guaranteeing verified batch authenticity and consistent cutting performance.
Fast Global Logistics
Maintained warehouse stock and streamlined international shipping networks ensure rapid dispatch to eliminate production delays.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: Why is the PC9030 PVD grade superior for stainless steel and superalloy turning?
A: PC9030 combines a tough carbide core with a specialized nano-structured PVD coating that resists high cutting temperatures, chemical cratering, and built-up edge common in gummy alloys.
Q: How many inserts are included in each factory package?
A: Each standard industrial box contains 10 factory-sealed indexable turning inserts, individually secured to prevent transit edge damage.
Q: What is the primary advantage of the -HS chipbreaker geometry?
A: The -HS chipbreaker provides a sharp positive rake design that minimizes cutting forces, preventing work hardening and maintaining excellent chip control in stainless steel.
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.