Korloy TCMT110204-HMP NC3030 Tough Steel Turning Insert for Interrupted Cuts (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy TCMT110204-HMP NC3030 is a high-toughness Triangular Indexable Turning Insert designed for the reliable machining of Carbon Steel, Alloy Steel, and Mild Steel, especially under unstable or interrupted cutting conditions. Utilizing the advanced NC3030 CVD Grade, this insert features a specialized substrate that absorbs impact, preventing premature edge failure. The HMP (Medium-Finishing) Chipbreaker provides a wide range of chip control, making it a versatile tool for general workshops.
Maximum Toughness: NC3030 is the "Safety Grade." If you are machining parts with cross-holes, keyways, or if your machine lacks extreme rigidity, the NC3030 grade provides the extra impact resistance needed to finish the job without chipping.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Designation | TCMT110204-HMP |
| Corner Radius (r) | 0.4 mm |
| Grade | NC3030 (High-Toughness CVD Coating) |
| Primary Application | Steel Turning (General to Interrupted) |
Core Performance Benefits:
- Impact Resistance: The optimized substrate is specifically designed to handle the shocks of interrupted cutting without fracturing.
- Thermal Shielding: Multi-layer CVD coating protects the cutting edge from heat, extending tool life during medium-speed operations.
- Excellent Chip Control: The HMP geometry features a positive rake angle that reduces cutting force and breaks chips into manageable "C" shapes.
- Versatile Performance: Reliable across a wide range of steel grades, from soft A36 to tougher 4140 alloys.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Mild Steel / Carbon Steel | 150 - 280 m/min | 0.10 - 0.25 mm/rev | 0.5 - 2.5 mm |
| Alloy Steel (Medium Hardness) | 120 - 220 m/min | 0.10 - 0.22 mm/rev | 0.5 - 2.0 mm |
| Cast Steel | 100 - 200 m/min | 0.12 - 0.28 mm/rev | 0.8 - 3.0 mm |
Compatible Tooling Systems:
Precision matched for 11-sized triangular toolholders:
- Internal Boring Bars: S12M-STUCR11 / S16Q-STUCR11
- External Toolholders: STGCR 1616H11 / STGCR 2020K11
Machinist Tip: NC3030 vs NC3020
When stability is your priority:
The Problem Solver. Choose NC3030 for interrupted cuts, heavy scale, or when using old/less rigid machinery. It’s built to survive impacts that would shatter harder grades.
The Efficiency King. Switch to NC3020 only if you have stable, continuous cuts and a high-speed CNC setup. NC3020 offers better wear resistance at higher RPMs.
Pro Advice: If you notice the cutting edge "chipping" or "flaking" during steel turning, it’s a sign to switch from NC3020 to this NC3030 grade. The increased toughness will keep the tool in the cut longer.
Packaging: 10 pieces per box.
Korloy TCMT110204-HMP price, NC3030 vs NC3020 toughness, best insert for interrupted steel cuts, TCMT110204 steel machining parameters, durable carbide inserts for alloy steel
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.