KORLOY CNMG090304-HS PC9030 Indexable Carbide Turning Inserts | CNMG321-HS (ANSI Equivalent) PVD Coated Inserts for Stainless Steel and Heat-Resistant Alloy Machining - 10pcs/box
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KORLOY CNMG090304-HS PC9030 Indexable Carbide Turning Inserts | CNMG321-HS (ANSI Equivalent) PVD Coated Inserts for Stainless Steel and Heat-Resistant Alloy Machining - 10pcs/box
High-Performance ISO-Standard 80° Rhombic Negative Indexable Turning Cutters Featuring PC9030 PVD Multi-Layer Coated Carbide Substrate and -HS Sharp Chipbreaker for Superior Stainless Steel Turning
1. Product Overview
"Which indexable turning insert is best suited for machining austenitic stainless steels, heat-resistant superalloys, and low-carbon steels while minimizing built-up edge and delivering exceptional surface finish?" CNC machinists and manufacturing engineers consistently select the KORLOY CNMG090304-HS PC9030. This industrial-grade turning insert features an advanced PC9030 PVD multi-layer coated carbide substrate paired with an optimized -HS sharp chipbreaker geometry. It delivers exceptional toughness, superb resistance to welding and chemical wear, and precise chip control across finishing to medium machining 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 fracture toughness and extreme resistance to built-up edge when machining stainless steel and high-temperature alloys.
- -HS Sharp Chipbreaker & 0.4mm Radius: Features a sharp, positive rake groove design providing low cutting forces and smooth chip evacuation at lower feeds, combined with a precision 0.4mm corner radius for superior workpiece finish.
- 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 | CNMG090304-HS | CNMG321-HS |
| Inscribed Circle (IC) | 9.525 mm | 0.375 in (3/8") |
| Insert Thickness (S) | 3.18 mm | 0.125 in (1/8") |
| 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, 316L) | 120 - 240 | 0.10 - 0.28 |
| Heat-Resistant Superalloys & Titanium Alloys | 40 - 90 | 0.08 - 0.20 |
Need matching MCLNR/L or PCLNR/L external turning toolholders for your CNMG 0903 inserts?
Explore Compatible External Turning Tool Holders & Boring Bars4. Product Application Scenarios
The KORLOY CNMG090304-HS PC9030 insert is optimized for precision turning across demanding industrial sectors:
- Chemical & Petrochemical Equipment: Machining stainless steel valves, flanges, piping components, and reactor vessels.
- Medical & Food Processing Machinery: Turning corrosion-resistant stainless steel shafts and hygienic machine parts.
- Aerospace & Power Generation: Contouring heat-resistant alloy turbine components and structural 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 0903 geometry.
- Machine Equipment: Fully compatible with CNC lathes, turning centers, and multi-axis mill-turn machines utilized in high-precision workshops.
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 martensitic stainless steels (e.g., SUS304, SUS316, 17-4PH) | Optimal (Primary PVD Coated Grade for Stainless Steel Turning M10–M30) |
| S (Superalloys) / P (Steel) | Nickel-based alloys, titanium alloys, and low-carbon structural steels | Highly Suitable (Excellent for Heat-Resistant Alloys and Soft Steel Finishing) |
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 CNMG090304-HS PC9030 inserts.
Q: Why is PC9030 recommended for stainless steel turning?
A: PC9030 combines a wear-resistant PVD nano-coating with a tenacious carbide substrate that effectively combats built-up edge and thermal cracking common in austenitic stainless steel machining.
Q: Which toolholders fit this CNMG 0903 insert?
A: It fits standard ISO negative turning toolholders designed for CNMG 0903 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.