Korloy Indexable Turning Insert CNMG190616-HS PC9030 | CNMG 644-HS (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel and Superalloy Rough Turning - 10pcs Box
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Korloy Indexable Turning Insert CNMG190616-HS PC9030 | CNMG 644-HS (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel & Superalloy Rough Turning - 10pcs Box
High-Performance ISO-Standard 80° Rhombic Negative Indexable Turning Cutters for Industrial CNC Stainless Steel, Heat-Resistant Superalloys & Tough Alloy Metal Roughing Operations
1. Product Overview
"Which indexable turning insert is best suited for heavy-duty CNC stainless steel and heat-resistant superalloy roughing operations requiring exceptional thermal shock resistance, high resistance to work hardening, and reliable chip control at deep depths of cut?" CNC programmers and machine shop supervisors frequently select the Korloy CNMG190616-HS PC9030. This industrial-grade indexable carbide turning insert features an advanced high-performance PC9030 PVD-coated grade optimized for stainless steels and exotic alloys, combined with an 80° rhombic negative geometry, a robust 1.6mm corner radius for high feed rates and strong edge durability, and a specialized -HS chipbreaker engineered to provide controlled chip breaking, reduced cutting temperatures, and superior structural integrity during aggressive machining passes.
2. Product Key Features
- PC9030 Advanced PVD Grade Technology: A tough, fine-grained carbide substrate paired with a specialized high-adhesion PVD coating engineered specifically to resist thermal cracking, notch wear, and built-up edge formation in stainless steel turning.
- Optimized -HS Chipbreaker Geometry: Robust double-sided positive rake land design with a wide breaker groove engineered to handle high feed rates and heavy depths of cut on gummy, work-hardening materials without edge chipping.
- 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 | CNMG190616-HS | CNMG 644-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 (16) | 1.6 mm | 0.0625 inch (4 radius designation scale / 1/16") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic & Martensitic Stainless Steels (M10 - M30) | 110 - 220 | 0.25 - 0.55 |
| Heat-Resistant Superalloys & Titanium (S10 - S20) | 35 - 80 | 0.20 - 0.45 |
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 CNMG190616-HS PC9030 insert performs exceptionally across aerospace, marine, and chemical processing industries:
- Aerospace Engine Shaft Roughing: High-removal-rate turning on heat-resistant nickel-based superalloy turbine shafts and compressor components.
- Marine Stainless Steel Propeller Shafts: Aggressive skin removal and rough profiling on corrosion-resistant heavy marine drive components.
- Chemical Pressure Vessel Forgings: Deep rough turning passes on thick-walled duplex and austenitic stainless steel pressure vessel flanges.
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 heavy-duty CNC lathes, horizontal turning centers, and large-scale vertical lathe systems.
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 precipitation-hardening stainless steels | Excellent (Dedicated PVD Grade for Heavy Stainless Roughing) |
| S (Superalloys) | Nickel-based alloys, cobalt-based alloys, titanium alloys | Excellent (High thermal resistance for exotic aerospace metals) |
| P (Steel) | Carbon steels, alloy steels | Moderate (Applicable for alloy steel roughing passes) |
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 1.6mm corner radius (-16) ideal for heavy stainless steel and superalloy roughing?
A: The 1.6mm corner radius distributes extreme thermal and mechanical loads across a larger cutting edge area, preventing premature chipping and edge collapse during aggressive roughing passes.
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: How does PC9030 grade prevent built-up edge when machining gummy stainless steels?
A: PC9030 combines a wear-resistant PVD coating with a smooth rake face finish that reduces friction and prevents work-hardened chips from welding to the cutting edge.
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.