Stainless steel balls

3 Stainless steel material  playing : 440,440C 9Cr18Mo
4 Stainless steel material  playing :420,420HC 3Cr13

2 stainless steel materials, playing :316,316L 0Cr19Ni12

1 Stainless steel material playing :304,304HC 0Cr18Ni9

Photo shows that the steel stainless steel, we are playing
. We have Chrome steel, steel start playing few steel, we start according the process is: "the coarse grinding balls steel billet and steel ball grinding balls, heat treatment and fine grinding ball and remove the magnetic steel products. Gangqiu precision grades in G200 G16 -. Gangqiu common SIZE specification: small ball 0.5 mm 3.175 - the ball, a bit more largish 3.96875 ball, 4.7625... 9.525, larger ball is 10-25.4 ball, big ball 28.575-80mm ball roundness, not more than 0.001mm diameter, error acuities 0.002mm.Like a mirror surface of steel. If a magnet to attract 316 stainless steel ball and 304, so all suck.material .

Steel ball material:stainless steel ball,Chrome steel ball, carbon steel ball,bearing steel ball.

stainless steel ball:304(304HC) 0Cr18Ni9
stainless steel ball:316L 0Cr19Ni12
stainless steel ball:440C 9Cr18Mo 420(HC) 3Cr13