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Welcome to Xinyuan Steel Balls, where you’ll find all your required precision balls at more competitive prices. With over 4500 tons produced annually, we deliver high-quality steel balls for industries worldwide.
Since 2004, Xinyuan has developed into one of the most influential steel ball enterprises in China.
Xinyuan Steel Balls manufactures over 4,500 tons of steel balls annually, serving a wide range of industries including automotive, electronics, medical, bearings, bicycle wheels, valves, and food machinery.
Our commitment to precision, durability, and competitive pricing has made us a preferred supplier across continents. We offer OEM services and maintain strict quality control throughout the production process.
All regular sizes (1/8", 5/32", 3/16", 1/4", 5/16") in stock. OEM accepted.
High-strength and durable for industrial applications.
Material: AISI 1010 / 1015 / 1085
Applications: Bearings, machinery, automotive
Standards: ISO 3290, ABMA
High hardness and wear resistance for precision bearings.
Material: AISI E52100
Hardness: 60-66 HRC
Applications: Ball bearings, gear systems
Corrosion-resistant for medical and food-grade applications.
Material: AISI 302 / 304 / 316 / 420 / 440
Grades: 304 (general), 316 (marine), 440C (high hardness)
Standards: ASTM A276, ISO 3290
Specialized for aerospace and high-performance systems.
Material: AISI 304 / 420 / 440
Features: High precision, low friction
Applications: Aerospace, defense, robotics
Ultra-precise for high-speed and load-bearing systems.
Tolerance: G3 to G20 (ISO 3290)
Diameter Range: 0.5mm – 50mm
Materials: Chrome, stainless, carbon steel
Robust and reliable for heavy-duty machinery.
Use Cases: Valves, pumps, conveyors
Materials: Carbon and chrome steel
Custom Sizes: Available on request
Sterile, non-reactive stainless steel for medical devices.
Material: AISI 316L (surgical grade)
Standards: ISO 13485, FDA compliant
Applications: Surgical tools, implants
Hygienic and corrosion-resistant for food processing.
Material: AISI 304 / 316 stainless
Features: Smooth finish, easy to clean
Standards: NSF, EHEDG compliant
Lightweight and durable for smooth wheel rotation.
Material: Chrome steel (E52100)
Sizes: 3/16", 1/4", 5/16"
Use: Hubs, pedals, bottom brackets
Precision-sealing balls for industrial and hydraulic valves.
Material: Stainless 304/316, chrome steel
Finish: Mirror polish, high roundness
Pressure Rating: Up to 10,000 PSI
Xinyuan Steel Balls are trusted across industries for reliability, precision, and performance.
Used in transmissions, wheel hubs, steering systems, and engine components.
Precision balls in sensors, switches, and micro-motors for consumer and industrial electronics.
Sterile stainless steel balls used in surgical instruments, implants, and diagnostic equipment.
Corrosion-resistant balls for mixers, conveyors, and processing equipment.
Used in hubs, pedals, headsets, and bottom brackets for smooth rotation.
Critical sealing components in ball valves, check valves, and control systems.
We offer carbon steel (AISI 1010/1015/1085), chrome steel (AISI E52100), stainless steel (AISI 304/316/420/440), and satellite-grade balls.
Yes, we accept OEM and custom orders. We can produce balls to your exact specifications, including size, material, and tolerance.
We stock standard sizes including 1/8", 5/32", 3/16", 1/4", and 5/16". Custom diameters from 0.5mm to 50mm are also available.
Our balls are used in automotive, electronics, medical, food machinery, bicycles, valves, bearings, and aerospace applications.
Please visit the official website to contact our sales team with your requirements for a prompt quotation.
For inquiries, quotes, or technical support, please reach out through the official website.
Email: sales@xysteelball.com / xysteelball@163.com
Phone: +86-538-6292508
Website: xinyuansteelball.com
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