Korloy Indexable Turning Insert DCMT11T304-HMP PC5300 | 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 PC5300 | DCMT 32.51-HMP (Imperial Equivalent) PVD Coated Carbide Inserts for High-Precision Stainless Steel & Alloy Finishing - 10pcs Box
High-Performance ISO-Standard 55° Rhombic Positive Indexable Turning Cutters for Industrial CNC Stainless Steel & Heat-Resistant Alloy Precision Finishing Operations
1. Product Overview
"Which indexable turning insert is best suited for precision CNC stainless steel and high-temperature alloy finishing operations requiring exceptional thermal crack resistance, sharp cutting edges, and minimal work-hardening?" CNC programmers and machine shop supervisors frequently select the Korloy DCMT11T304-HMP PC5300. This industrial-grade indexable carbide turning insert features an advanced high-performance PC5300 PVD-coated grade optimized for stainless steels and heat-resistant superalloys, combined with a 55° rhombic positive geometry, a fine 0.4mm corner radius for tight contouring and low cutting forces, and a specialized -HMP chipbreaker engineered to provide smooth chip evacuation, reduced built-up edge (BUE), and superior surface integrity during precision finishing passes.
2. Product Key Features
- PC5300 Advanced PVD Grade Technology: A tough, deformation-resistant carbide substrate paired with a specialized nano-structured PVD coating engineered specifically to resist adhesive wear and thermal shock in stainless steel turning.
- Optimized -HMP Chipbreaker Geometry: Sharp positive rake angle design with a polished ground breaker groove engineered to minimize cutting resistance and prevent stringy chip wrapping during fine finishing.
- 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 & Martensitic Stainless Steels (M10 - M30) | 120 - 240 | 0.05 - 0.18 |
| Heat-Resistant Superalloys & Titanium Alloys (S10 - S25) | 40 - 90 | 0.04 - 0.15 |
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 PC5300 insert performs exceptionally across precision machining and specialized industrial sectors:
- Medical Implant & Surgical Tool Machining: High-precision fine finishing on 316L and titanium surgical grade alloy components.
- Aerospace Valve & Fitting Production: Tight-tolerance contouring on heat-resistant stainless steel and inconel tubing components.
- Food Processing Equipment: Smooth outer diameter finishing and profiling on austenitic stainless steel shafts and fittings.
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, Swiss-type turning machines, and turning centers requiring exceptional edge sharpness for gummy materials.
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 | PC5300 Performance Suitability |
|---|---|---|
| M (Stainless Steel) | Austenitic, martensitic, and precipitation-hardening stainless steels | Excellent (Dedicated PVD Grade for Stainless Finishing) |
| S (Superalloys) | Nickel-based alloys, cobalt alloys, titanium alloys | Good (High thermal stability for heat-resistant metals) |
| P (Steel) | Low alloy steels, carbon structural steels | Moderate (Suitable for light continuous finishing work) |
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: Why is the 0.4mm corner radius (-04) preferred for stainless steel finishing over larger radii?
A: The 0.4mm corner radius exerts lower radial cutting forces, minimizing workpiece deflection and chatter, which is essential for maintaining tight dimensional tolerances on thin-walled stainless steel parts.
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 PC5300 grade prevent built-up edge (BUE) when machining stainless steel?
A: PC5300 features a smooth, low-friction PVD nano-coating combined with high thermal resistance that prevents gummy stainless steel chips from welding onto the rake face.
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.