Three Factors Affecting the Quality of Steel Ball

1.Material influence: steel ball, cast iron ball, alloy steel ball, etc. The density of different materials is different, the density of steel is greater than that of cast iron, and the density and content of alloy steel vary according to the density and content of main alloy elements.

2. Influence of steel ball manufacturing method: rolled and forged steel balls are dense in structure, so the density is high. Cast steel balls, cast iron balls or cast alloy balls are not very dense in structure, even with pores, so the density is small.

3. Effect of steel ball metallographic structure: the density of martensite, austenite, bainite, ferrite and other different crystal structures is different, which also affects the crystal fineness.


About Us

Haimen City Mingzhu Steel Ball Co., Ltd. is a professional manufacturer of precision steel balls in China. The company was founded in 1992 and is located in Haimen City with convenient transportation. It takes only two hours’ driving from Shanghai. Thanks to the wide experience, we keep providing high-quality steel balls with the good service to meet the requirement of our customers. Besides the domestic market, our steel balls also export to many countries like USA, Korea, Italy, Germany, Latin America, etc.

Since the establishment, We have consistently adhered to the principle of quality assurance, and put the quality of products in the most important position. A complete management system is established. Especially the inspection and tracking system from raw materials to finished products.

All the produced steel balls are 100% sorted by the roller bar and 100% of the photoelectric surface defect detector to ensure the quality.

We specialize in manufacturing steel balls:
Chrome steel balls (100Cr6/100CrMn6, etc.);
Stainless steel balls (440C/420C/304/316, etc.);
Carbon steel balls (1015/1010, etc.)
range from 1/8"(3.175mm) to 1-1/2"(38.10mm) and grade form G10 to G1000, complying with Standards AISI, ASTM, DIN, JIS, NF, BS.

We are getting poised for the challenge of gaining the satisfaction of all customers through a continuous improvement of our products and service.

Post time: Aug-26-2022