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.
Need Help With KORLOY Inserts?
Looking for a KORLOY 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 KORLOY 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.