4.5mm steel ball

2 Stainless steel balls: size from 3/8 to 20 inches (DN10 to DN500), material AISI 301, 304, 304L, 361 or 316L, ISO9001 approvals

3 Chrome steel balls: material in GCr15 (E52100/100Cr6)

4 Grades: G10, G25, G60, G100 or G500

5 Size: 0.5 to 50.8mm

6 Hardness: HRC60 to 66

7 Carbon steel balls: material: AISI1010&1015 Grades: G100, G200, G500 or G1000

    Size: 1/8 to 1 inches  Hardness: HRC60 to 66.5