Korloy Indexable Turning Insert DCMT11T304-HMP PC9030 | DCMT 32.51-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for Stainless Steel and Alloy Finishing - 10pcs Box
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Korloy Indexable Turning Insert DCMT11T304-HMP PC9030 | DCMT 32.51-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for High-Precision Stainless Steel Finishing - 10pcs Box
High-Performance ISO-Standard 55° Rhombic Positive Indexable Turning Cutters for Industrial CNC Stainless Steel & Alloy Steel Precision Finishing Operations
1. Product Overview
"Which indexable turning insert is best suited for precision CNC stainless steel and alloy steel finishing operations requiring tight dimensional tolerances, exceptional surface finish quality, and reliable chip control?" CNC programmers and machine shop supervisors frequently select the Korloy DCMT11T304-HMP PC9030. This industrial-grade indexable carbide turning insert features an advanced high-performance PC9030 PVD-coated grade optimized for stainless steel and difficult-to-cut materials, combined with a 55° rhombic positive geometry, a sharp 0.4mm corner radius for fine contouring, and a specialized -HMP chipbreaker engineered to provide smooth chip flow, minimized cutting forces, and superior surface integrity during light finishing and profiling processes.
2. Product Key Features
- PC9030 Advanced PVD Grade Technology: A specialized fine-grained carbide substrate combined with a tough, wear-resistant multi-layer PVD coating engineered specifically to resist thermal shock, built-up edge, and flank wear across stainless steel turning applications.
- Optimized -HMP Chipbreaker Geometry: Positive rake angle design with sharp cutting edges and a specialized ground breaker groove engineered to reduce cutting resistance and control stringy chips during light finishing passes.
- ISO Standard Compliance: Manufactured strictly under international cutting tool standards to guarantee secure screw clamping and exact interchangeability across standard positive 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 | DCMT11T304-HMP | DCMT 32.51-HMP |
| Inscribed Circle / Size | 9.525 mm (11T series / 3/8" scale) | 3/8" nominal (3 series / 9.525mm equivalent scale) |
| Insert Thickness (T3) | 3.97 mm (5/32" thickness class) | 0.156 inch (2.5 series / 5/32" scale) |
| Corner Radius (04) | 0.4 mm | 0.0157 inch (~1 radius designation scale / 1/64") |
Recommended Cutting Parameters (Feed & Speed)
| Workpiece Material Group | Cutting Speed (vc) m/min | Feed Rate (f) mm/rev |
|---|---|---|
| Austenitic Stainless Steels (M10 - M30) | 120 - 240 | 0.06 - 0.20 |
| Low Alloy Steels & Carbon Steels (P15 - P30) | 150 - 280 | 0.08 - 0.22 |
Need matching SDJCR/L external turning tool holders or SDUCR/L boring bars for your 11T3 DCMT inserts?
Explore Compatible Turning Tool Holders & Boring Bars4. Product Application Scenarios
The Korloy DCMT11T304-HMP PC9030 insert performs exceptionally across precision machining and industrial fabrication sectors:
- Stainless Steel Shaft Turning: High-precision finishing passes on austenitic stainless steel drive shafts and industrial rollers.
- Valves & Fluid Fittings: Tight-tolerance profiling and facing operations on corrosion-resistant fluid control components.
- Aerospace & Automotive Components: Smooth contouring on heat-resistant alloy and alloy steel precision machine parts.
5. Compatibility
Designed to integrate seamlessly into standard positive industrial turning systems:
- Tool Holders & Boring Bars: Fully compatible with SDJCR/L, SDUCR/L, and SDNCN positive external tool holders and internal boring bars configured for DCMT 11T3 series inserts.
- CNC Machinery: Optimized for CNC lathes, turning centers, and multi-axis automated manufacturing cells requiring robust screw-down positive clamping.
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 and precipitation-hardening stainless steels | Excellent (Dedicated PVD Grade for Stainless Steel Finishing) |
| P (Steel) | Carbon steels, alloy steels, structural steels | Good (High toughness and wear resistance in steel finishing) |
| K (Cast Iron) | Gray cast iron, nodular iron | Moderate (Recommended for light continuous finishing passes) |
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 -HMP chipbreaker ideal for stainless steel finishing with DCMT11T304 inserts?
A: The -HMP geometry provides a sharp, polished positive rake face designed to curl and break stringy stainless steel chips efficiently at lower feed rates, preventing workpiece scratching.
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: Why is PC9030 grade effective for high-precision steel and stainless steel turning?
A: PC9030 combines a tenacious micro-carbide substrate with an advanced PVD multi-layer coating that offers exceptional resistance to thermal shock and abrasive wear during continuous cutting.
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.