ABOUT US

Spherical Technology Ball (STB) was formed to serve the North American marketplace on requirements for Precision Steel Balls as well as Precision Balls made from other materials. Depending upon ball diameter and material we can provide in Grade 10 through Grade 1000. Our diameter size range depending on material is 1mm (0.0394”) to 50.8mm (2.000”) except for Chrome Alloy, 420SS and 440C we have increased to diameter to 76.2mm (3.000”). 
 
Spherical Technology Ball is a group company of Huatong Group Ltd located in Ningbo, China PRC. Our factory is both ISO9001 2018-2021 and TS 16949:2009 approved. We have been supplying product to North America and Europe for over 20 years.  Our customers serve a very diverse market where the ball is a critical component of the end product provided to their customers.

In today’s global market requirements for Steel Balls, STB is a source you can have confidence in knowing we produce a quality ball at a competitive price. All product supplied includes Material and Process Certifications, Heat Treat and Inspection Report with complete Lot Traceability as a “Standard Procedure”.  Strict compliance to both ISO Standard 3290 and ANSI/ABMA Std. 10A-2001 is assured.

We are committed to quality, continuous improvement and customer satisfaction.

As a brief overview of our ball production classified by High Volume by material we would offer the following data:

AISI E52100 Chrome Alloy Steel
AISI 440C and 420 Corrosion Resisting Hardened Steel
AISI 302, 304, 316 and 316L Corrosion Resisting Unhardened Steel
AISI 1010 // 1020 Carbon Steel

Please note we are not limited to just the above materials but are showing what are the most
popular within our material range.





Copyright © HUATONG GROUP LTD. Design By Haibo.com