In the world of precision manufacturing, even the smallest components can carry the greatest responsibility. From high-speed bearings to delicate medical instruments, material quality determines product performance, reliability, and longevity.
As a B2B integrated manufacturer and supplier of steel and glass balls, we believe in one simple truth:
The quality of a ball begins with the quality of its raw materials.
Here’s how we carefully select only the best steel and glass to ensure every product meets the highest industrial standards.
We source steel materials based on their suitability for specific applications:
Stainless Steel Balls (304 / 316 / 420 / 440C)
Excellent corrosion resistance. Ideal for medical, chemical, and food-grade uses.
Bearing Steel Balls (GCr15 / AISI 52100)
High strength and wear resistance. Commonly used in mechanical bearings.
Carbon Steel & Alloy Steel Balls
Cost-effective for general industrial use with lower mechanical demands.
All raw steel is sourced from top-tier mills such as Baosteel and TISCO, and comes with full chemical composition certificates and mechanical test reports.
Metric | Method of Control | Why It Matters |
---|---|---|
Hardness Uniformity | Heat treatment optimization | Ensures strength and long wear life |
Sphericity | ≤0.002mm tolerance | Improves rotation precision and load balance |
Surface Finish | Ra ≤0.02μm | Reduces friction and extends lifespan |
Internal Structure | Microstructure inspection | Increases fatigue strength and impact resistance |
Glass balls are often underestimated, but in technical applications, their thermal, optical, and structural properties are just as critical as steel.
Borosilicate Glass Balls
High thermal resistance. Used in medical, lab, and chemical systems.
Optical Glass Balls (e.g. BK7)
High clarity and consistent refractive index. Ideal for imaging and measurement devices.
Soda-Lime Glass Balls
Cost-effective and suitable for low-precision or decorative use.
Purity & Composition: Ensures stability and reduces fracture risk.
Thermal Expansion: Controls expansion under heat/cold cycles.
Optical Clarity: Especially important for sensors and optical systems.
Sphericity & Pressure Resistance: Achieved through precision grinding and annealing.
Our full-spectrum quality control process includes:
Certified ISO9001 Quality Management System
Raw material verification: composition tests + microscopic inspection
In-process and final inspection: diameter tolerance, hardness, magnetic properties, surface defects
For high-precision or regulated industries, we provide material certificates and third-party inspection reports
We understand that for B2B clients, material quality is more than a technical detail — it’s a key factor in end-product reliability and brand reputation.
Whether it's a steel ball for high-speed bearings or a glass ball for medical use, we follow one principle:
No compromises on materials. No shortcuts on performance.
Partner with us and gain access to a supply chain built on quality, traceability, and engineering integrity.
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