KORLOY CNMG120404-GS PC9030 Indexable Carbide Turning Inserts | CNMG431-GS (ANSI Equivalent) PVD Coated Inserts for Stainless Steel and Alloy Steel Machining - 10pcs/box
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KORLOY CNMG120404-GS PC9030 Indexable Carbide Turning Inserts | CNMG431-GS (ANSI Equivalent) PVD Coated Inserts for Stainless Steel and Alloy Steel Machining - 10pcs/box
High-Performance ISO-Standard 80° Rhombic Negative Indexable Turning Cutters Featuring PC9030 PVD Multi-Layer Coated Carbide Substrate and -GS General/Stainless Chipbreaker for Superior Stainless Steel Turning
1. Product Overview
"Which indexable turning insert is best suited for general to finishing machining of austenitic stainless steels and alloy steels while preventing built-up edge and maximizing tool longevity?" CNC machinists and manufacturing engineers consistently select the KORLOY CNMG120404-GS PC9030. This industrial-grade turning insert features an advanced PC9030 PVD multi-layer coated carbide substrate paired with an optimized -GS general/stainless chipbreaker geometry. It delivers exceptional fracture toughness, superb thermal crack resistance, and reliable chip control across continuous and light interrupted cutting conditions. Built upon a rigid 80° rhombic negative profile with 4 indexable cutting edges and a precise 0.4mm corner radius, it guarantees supreme operational reliability.
2. Product Key Features
- PC9030 PVD Coated Grade: Engineered with a specialized Physical Vapor Deposition (PVD) nano-structured coating optimized for high resistance to adhesive wear and chemical reaction when machining stainless steels.
- -GS Chipbreaker & 0.4mm Radius: Features a positive rake groove design providing smooth, low-resistance chip flow, combined with a precision 0.4mm corner radius for exceptional surface finish quality.
- Double-Sided Indexable Economy: Rhombic negative configuration provides 4 total indexable cutting edges (2 per side), maximizing cost-efficiency on the shop floor.
- Standard Industrial Packaging: Supplied in secure factory containers containing 10 pieces for efficient tool management.
3. Technical Specifications & Model Breakdown
Review the comprehensive technical parameters, metric-to-imperial cross-references, and ISO nomenclature breakdown below.
Metric vs. Imperial Designation Comparison
| Specification Parameter | Metric Standard (ISO) | Imperial Equivalent (ANSI) |
|---|---|---|
| Primary Insert Model | CNMG120404-GS | CNMG431-GS |
| Inscribed Circle (IC) | 12.7 mm | 0.500 in (1/2") |
| Insert Thickness (S) | 4.76 mm | 0.1875 in (3/16") |
| Corner Radius (r) | 0.4 mm | 0.0157 in (~1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic Stainless Steels (e.g., 304, 316) | 130 - 260 | 0.15 - 0.35 |
| Alloy Steels & Low Carbon Steels | 160 - 320 | 0.18 - 0.40 |
Need matching MCLNR/L or PCLNR/L external turning toolholders for your CNMG 1204 inserts?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY CNMG120404-GS PC9030 insert is optimized for general turning across industrial manufacturing sectors:
- Chemical & Valve Manufacturing: External profiling and facing of stainless steel valve bodies, flanges, and piping fittings.
- General Mechanical Engineering: Medium to rough turning of alloy steel shafts, gear blanks, and structural components.
- Energy & Pump Production: Machining corrosion-resistant pump shafts and turbine containment rings.
5. Compatibility
Engineered for universal integration with standard ISO negative toolholding systems:
- Toolholders: Fully compatible with standard MCLNR/L, PCLNR/L, and CCLNR/L lever-lock and pin-and-clamp external turning toolholders designed for CNMG 1204 geometry.
- Machine Equipment: Fully compatible with heavy-duty CNC lathes, turning centers, and horizontal boring mills.
6. Material Comparison & Workpiece Matrix
Examine grade application suitability across ISO workpiece material classifications.
| ISO Material Category | Target Materials | PC9030 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic and duplex stainless steels (e.g., 304, 316L, 2205) | Optimal (Primary PVD Coated Grade for Stainless Steel Turning M15–M35) |
| P (Steel) | Alloy steels and carbon structural steels (e.g., 4140, C45) | Highly Suitable (Excellent Performance for Alloy Steel General Machining) |
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 downtime.
Technical Expertise
Backed by professional CNC application engineers available to provide customized cutting data recommendations and troubleshooting support.
8. Frequently Asked Questions (FAQ)
Q: How many inserts are included in each box?
A: Each standard factory box contains exactly 10 pieces of CNMG120404-GS PC9030 inserts.
Q: What benefits does the PC9030 grade provide for stainless steel?
A: PC9030 utilizes a specialized PVD nano-coating combined with a tough carbide substrate that resists thermal deformation and edge chipping during stainless steel turning.
Q: Which toolholders fit this CNMG 1204 insert?
A: It fits standard ISO negative turning toolholders designed for CNMG 1204 geometry, such as MCLNR or PCLNR external toolholder bars.
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.