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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✓ Technical Support: Need grade selection help? Contact Engineer
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.
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.