Korloy Indexable Turning Insert VNMG160408-HS PC9030 | VNMG 433-HS (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel and Superalloy Machining - 10pcs Box
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Korloy Indexable Turning Insert VNMG160408-HS PC9030 | VNMG 433-HS (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel & Alloy Finishing - 10pcs Box
High-Performance ISO-Standard 35° Rhombic Negative Indexable Turning Cutters for Industrial Austenitic Stainless Steels, Heat-Resistant Superalloys, and Precision Finishing Operations
1. Product Overview
"Which indexable turning insert is best suited for precision finishing and semi-finishing of stainless steel and high-temperature superalloys where excellent surface finish, low cutting forces, and reliable chip control are critical?" CNC programmers and precision manufacturing engineers frequently select the Korloy VNMG160408-HS PC9030. This industrial-grade indexable carbide turning insert features an advanced high-performance PC9030 specialized PVD-coated grade optimized for difficult-to-machine materials, combined with a 35° rhombic negative geometry providing 4 usable cutting edges (2 per side) for profiling and contouring, an optimal 0.8mm corner radius for fine surface finish generation, and a specialized -HS chipbreaker engineered with a sharp, positive rake groove profile to minimize work hardening, reduce cutting temperatures, and ensure smooth, continuous chip evacuation during delicate stainless steel turning operations.
2. Product Key Features
- PC9030 Advanced PVD Coated Grade Technology: A tough, deformation-resistant micro-grain carbide substrate combined with a high-performance nano-structured PVD coating engineered specifically to resist built-up edge (BUE), notch wear, and thermal cracking in stainless steels.
- Optimized -HS Chipbreaker Geometry: Precision sharp-edge finishing design featuring a polished rake face to minimize cutting resistance and prevent workpiece surface smearing or work-hardening.
- 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 | VNMG160408-HS | VNMG 432-HS |
| Inscribed Circle / Size | 16.07 mm (16 series scale equivalent) | 1/2" nominal scale equivalent (4 series) |
| Insert Thickness (04) | 4.76 mm (3/16" thickness class) | 0.1875 inch (3 series / 3/16" scale equivalent height class) |
| Corner Radius (08) | 0.8 mm | 0.0313 inch (2 radius designation scale / 1/32") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic & Martensitic Stainless Steels (M10 - M30) | 140 - 240 | 0.10 - 0.30 |
| Heat-Resistant Superalloys & Titanium Alloys (S10 - S25) | 50 - 110 | 0.08 - 0.22 |
Need matching MVJNR/L or PVJNR/L external turning tool holders for your 1604 VNMG inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy VNMG160408-HS PC9030 insert performs exceptionally across aerospace component manufacturing, medical device machining, chemical processing equipment, and precision shaft finishing:
- Aerospace Turbine & Enclosure Finishing: Precision finish turning of heat-resistant nickel-alloy and stainless steel rings.
- Medical & Food Processing Valve Shafts: Clean, burr-free finishing of 304 and 316L stainless steel components.
- Precision CNC Job Shops: High-integrity finishing passes requiring stringent dimensional tolerances and superior surface finish values (Ra).
5. Compatibility
Designed to integrate seamlessly into standard negative industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with MVJNR/L, PVJNR/L, and DVJNR/L negative lever-lock and pin-lock external tool holders configured for VNMG 1604 series inserts.
- CNC Machinery: Optimized for high-precision CNC lathes, Swiss-type turning setups (where applicable), and multi-tasking turning centers.
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 Optimized for Stainless Finishing) |
| S (Superalloys) | Inconel, Waspaloy, Monel, titanium alloys | Very Good (High thermal resistance and smooth chip breaking) |
| P (Steel) | Carbon and alloy steels | Moderate (CVD grades preferred for general heavy steel turning) |
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: What makes the VNMG160408-HS insert superior for stainless steel finishing compared to roughing geometries?
A: The sharp, positive rake -HS chipbreaker reduces cutting forces and prevents work-hardening, while the 0.8mm radius (-08) provides optimal surface finish in austenitic stainless steels.
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 the PC9030 grade prevent built-up edge (BUE) when machining sticky stainless materials?
A: PC9030 utilizes a specialized nano-structured PVD coating with ultra-smooth surface topography that resists chemical affinity and chip adhesion.
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.