CHANGZHOU STW INDUSTRIAL CO., LTD.213164About UsNo.202,Yangjia tou, Nanzhai, Xueyan town, Wujin, Changzhou, China 213178, Changzhou, JiangsuMore than 30 years experience and specialized in balls in various materialsCHANGZHOU STW INDUSTRIAL CO., LTD.213164About UsNo.202,Yangjia tou, Nanzhai, Xueyan town, Wujin, Changzhou, China 213178, Changzhou, JiangsuMore than 30 years experience and specialized in balls in various materialsCHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL CO., LTD.CHANGZHOU STW INDUSTRIAL

steel balls
Welcome to the Factory Tour at STW.
bearing
steel balls   

WHY CHOOSE US?

More than 30 years experience and specialized in balls in various materials








 
RAW MATERIAL
Raw material from reliable supplier / FACTORY STRENGTH All producing process is done in our own factory
DEVICE Advanced equipment and producing technology. Full Set of testing equipments

 

steel balls

 

WHAT CAN WE OFFER?

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The 2mm-60mm G10-G1000 bearing steel balls are precision-engineered from high carbon chromium steel (AISI 52100). They offer excellent hardness (HRC 60-66), wear resistance, and corrosion protection. Widely used in bearings, automotive, and mechanical parts, they ensure smooth operation and durability. Available in various sizes and grades for diverse industrial needs.
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The S2 tool steel balls are precision-engineered components known for their exceptional shock resistance, hardness, and wear resistance. They are ideal for high-performance applications such as bearings, valves, and automotive components. These balls offer durability under dynamic stress conditions and are manufactured to tight dimensional tolerances for reliable performance in critical environments.
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AISI304 balls are widely used in valves, cosmetic products, polishing, and related equipment. Ball of material AISI304 is the most versatile of steel balls. It is used for applications where material toughness and resistance to corrosion are more important than hardness. AISI304L has a higher corrosion resistance than AISI304. It is easily to welds and has an excellent performance of polishing. Non-magnetic properties available upon request.
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Chrome steel balls are made of bearing-grade alloy steel. Chrome steel is known as AISI52100 steel in the US, 100Cr6 in Europe, SUJ-2 in Japan, and GCr15 in China.
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This is an oil hardened steel, which is universally used by the ball and roller bearing industry. This steel has very good hardness, very good physical characteristics and excellent wear resistance.
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Low carbon steel balls are often referred to as carbon steel balls made of AISI1010-1015. They can be casehardened with low core hardness.
  
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