Product
LBC05 grade cemented carbide round bar
China Lizhou Hard Alloy Source Factory
Grade: LBC05
Classification :
Carbide Rod
keyword：
lizhou
LBC05 Tungsten Carbide Round Bar – High-Performance Carbide Solution from Lizhou
Introduction
In the field of advanced cutting tools, wear-resistant components, and precision machining, tungsten carbide round bars play a vital role. Known for their unique combination of hardness, strength, and toughness, they form the backbone of modern industries ranging from aerospace and automotive to electronics and oil & gas.
As a professional carbide rod manufacturer, Lizhou Carbide is proud to introduce its high-performance LBC05 grade tungsten carbide round bar. Designed with a 6% cobalt binder content, 3100 MPa transverse rupture strength (TRS), 92.6 HRA hardness, 14.8 g/cm³ density, and 1.0 μm fine grain size, this grade delivers exceptional balance between toughness and wear resistance.
In this article, we will explore the advantages, numerical parameters, performance analysis, applications, functions, features, precautions, and innovative technologies behind LBC05 carbide rods—all aligned with Google search intent for engineers, buyers, and industry professionals seeking reliable carbide solutions.
1、Product Attributes:
Grade: LBC05
Cobalt content: 6%
Tungsten carbide content: 88%
Grain size: 1.0μm
Density: 14.8g/cm3
Vickers hardness: 1600Kg/mm2
Rockwell hardness: 92.3
Bending strength: 3100N/mm2
2. Comparative Advantages and Limitations
Advantages | Limitations |
| Wear resistance is superior to ordinary cemented carbide | Cost is higher than medium-coarse grain cemented carbide |
| Suitable for high-precision, small-diameter tools | Not suitable for heavy-duty rough machining (e.g., intermittent cutting of steel parts) |
| Highly compatible with diamond coating | Diffusion resistant coating (e.g., TiAIN) is required when processing steel parts |
3. Applications of LBC05 Carbide Round Bar
The LBC05 grade round bar is widely used across industries:
Cutting Tool Manufacturing
End mills
Drills (twist drills, step drills, deep-hole drills)
Reamers
Threading tools
Precision Machining
Aerospace components requiring tight tolerance machining.
Automotive engine parts, transmission gears, and high-speed steel replacements.
Wear-Resistant Components
Punches and dies
Valve seats and nozzles
Metal forming tools
Electronics and Micro-Tools
PCB micro-drills
Small-diameter cutters for precision machining
Oil & Gas / Energy Industry
Drilling inserts
Wear parts for extreme environments
4. Role and Function
The role of LBC05 carbide rods in industrial production is to:
Provide stable raw material for precision cutting tools.
Maintain long service life under high-speed and high-load machining.
Enable higher productivity through reduced tool change frequency.
Support complex machining operations, including high-speed milling, drilling, and threading.
By offering a balance of hardness and toughness, LBC05 ensures tools can cut harder materials without premature breakage.
5. Key Features
High Wear Resistance – Suitable for machining steel, stainless steel, cast iron, and heat-resistant alloys.
Fine-Grain Edge Stability – Ensures smooth chip evacuation and excellent surface quality.
Consistent Material Quality – Manufactured with strict powder metallurgy controls.
Versatile Application – Covers a broad spectrum of machining needs, from general-purpose tools to high-performance applications.
Customizability – Available in different diameters and lengths to suit varied tool designs.
6. Precautions in Use
To maximize the benefits of LBC05 carbide rods, the following precautions are recommended:
Tool Grinding Precision
Use advanced CNC grinders with diamond wheels for best cutting edge sharpness.
Cutting Parameter Optimization
Match speed, feed, and depth of cut to the workpiece material.
Coolant Application
Use proper coolant flow to control cutting temperature and prevent thermal cracking.
Avoid Excessive Shock Loads
Carbide, while strong, is brittle; avoid heavy impacts or tool chatter.
Storage and Handling
Store in dry, stable conditions; avoid collisions to prevent micro-cracks.
7. Technical and Patent Innovations
Lizhou’s LBC05 carbide rods benefit from continuous R&D advancements:
Grain Size Control Technology – Proprietary powder preparation ensures consistent 1.0 μm structure.
High-Purity Raw Materials – Reduced impurities for enhanced toughness.
Advanced Sintering Techniques – Vacuum sintering and HIP (Hot Isostatic Pressing) improve density and strength.
Innovative Coating Compatibility – LBC05 is designed to work seamlessly with PVD/CVD coatings for extended tool life.
Patent-Protected Binder Distribution – Optimized cobalt distribution reduces weak points and improves fracture resistance.
8. Why Choose Lizhou Carbide?
As a professional carbide rod manufacturer, Lizhou offers:
Factory Direct Supply – Competitive pricing and consistent quality.
Customization Service – Round bars available in multiple diameters, lengths, and tolerances.
Global Standards – Production meets ISO quality certification.
Technical Support – Engineering team provides guidance on tool design and application.
Innovation-Driven Growth – Continuous investment in R&D for carbide material performance.
Conclusion
The LBC05 tungsten carbide round bar from Lizhou represents a perfect synergy of hardness, toughness, and fine microstructure, making it the ideal choice for tool manufacturers and industrial users worldwide. With 6% cobalt binder, 92.6 HRA hardness, 3100 MPa flexural strength, 14.8 g/cm³ density, and 1.0 μm fine grain size, it delivers high performance, reliability, and cost efficiency.
Whether for end mills, drills, reamers, or wear-resistant components, LBC05 provides the stability, precision, and durability required in today’s demanding industries.
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