High-Strength Grade 5 Titanium Alloy Balls (4mm - 8mm)
High-Strength Grade 5 Titanium Alloy Balls (4mm - 8mm)
1. Product Overview
Our Grade 5 Titanium Alloy Balls (Ti-6Al-4V) are engineered for high-precision and high-strength industrial applications. Available in standard small diameters including 4mm, 5mm, 6mm, and 8mm, these solid titanium spheres deliver a remarkable strength-to-weight ratio, exceptional fatigue resistance, and outstanding durability under extreme stress.
Manufactured from premium aerospace-grade titanium alloy, these balls offer superior performance over standard stainless steel or ceramic bearing balls, especially in environments exposed to severe mechanical loads and corrosive elements.
2. Key Features & Benefits
Premium Grade 5 Titanium (Ti-6Al-4V): Provides significantly higher tensile strength and yield strength compared to commercially pure Grade 2 titanium.
Lightweight & High Strength: Offers the strength of steel at only 56% of the weight, drastically reducing centrifugal force and wear in high-speed rotating components.
Excellent Corrosion & Erosion Resistance: Highly resistant to saltwater, marine environments, chlorides, nitric acid, and various aggressive chemicals.
High Precision Engineering: Precision-ground and polished to meet strict industrial tolerances for sphericity, surface roughness, and dimensional accuracy.
Non-Magnetic & Bio-compatible: Completely non-magnetic, making them ideal for specialized electronic equipment, medical instruments, and aerospace instruments.
3. Technical Specifications
| Parameter | Standard Specification |
| Material Grade | Titanium Grade 5 / Ti-6Al-4V / UNS R56400 |
| Diameter Range | 4mm, 5mm, 6mm, 8mm (Custom sizes available upon request) |
| Precision Grade | G100, G200, G500, G1000 |
| Density | 4.43 g/cm³ |
| Hardness | HRC 30 - 36 (Annealed) / Higher via heat treatment |
| Tensile Strength | ≥ 895 MPa |
| Yield Strength | ≥ 828 MPa |
| Surface Finish | Bright polished, mirror finish, or matte |
4. Industrial Applications
Due to their robust mechanical properties and lightweight nature, these solid Gr5 titanium balls are widely utilized across multiple advanced industries:
Aerospace & Defense: High-speed bearings, structural fasteners, and calibration spheres for aircraft and aerospace instruments.
Chemical & Petrochemical Processing: Check valves, ball valves, and flow meters exposed to highly corrosive chemical fluids.
Medical Devices: Precision components for orthopedic implants, surgical instruments, and laboratory equipment.
Automotive & Racing: Lightweight check valves, fuel systems, and custom bearing assemblies to reduce moving mass.
Marine Engineering: Underwater machinery, flow control systems, and naval equipment subjected to deep-sea saltwater corrosion.
5. Quality Assurance & Inspection
We enforce rigorous quality control measures to ensure every batch of Gr5 titanium balls meets stringent industrial standards:
Material Certification: 100% trace-ability with mill test certificates (MTC) verifying the Ti-6Al-4V chemical composition.
Dimensional Testing: High-precision micrometer and coordinate measuring machine (CMM) checks for exact 4mm-8mm diameter tolerances.
Sphericity & Surface Roughness Analysis: Advanced profilometer testing to ensure smooth rotation and low friction.
Defect Detection: Visual and eddy current inspections to guarantee zero surface cracks, pitting, or internal voids.
6. Frequently Asked Questions (FAQ)
Q1: What makes Grade 5 titanium balls better than Grade 2 titanium balls?
A: Grade 5 Titanium (Ti-6Al-4V) is an alpha-beta alloy, whereas Grade 2 is commercially pure. Grade 5 provides nearly double the tensile strength and much higher hardness. If your application involves high loads, high-speed rotation, or severe mechanical wear, Grade 5 is the required choice, while Grade 2 is generally reserved for low-stress corrosion environments.
Q2: What are the exact size tolerances for your 4mm, 5mm, 6mm, and 8mm titanium balls?
A: Our standard production follows precision grades ranging from G100 to G500. Depending on your specific application requirements (e.g., precise valve seating vs. general industrial mixing), we can provide balls with standard micrometer tolerances or higher precision grades. Please specify your tolerance requirements when requesting a quote.
Q3: Can these titanium spheres be used in chemical check valves?
A: Yes, absolutely. Solid Gr5 titanium alloy balls are excellent for check valves because they resist pitting, crevice corrosion, and erosion from flowing chemical media. Their lightweight nature also allows for faster valve response times compared to heavier steel balls.
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