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Dia 20mm - 200mm Grinding Balls for Mining
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Dia 20mm - 200mm Grinding Balls for Mining

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Hot Sale High Hardness Dia 20mm - 200mm Grinding Balls for Mining

Forged Steel Grinding Balls

Size:

Dia 20mm-40mm hardness 63-66HRC

Dia 50mm-70mm hardness 61-64HRC Impact Toughness7-15 J/cm2

Dia 80mm-100mm hardness 60-63HRC Impact Toughness 12-25 J/cm2

Above Dia 100mm hardness 59-62HRC Impact Thoughness above 20J/ cm2

 

process:

Steel rod→heating→ skew rolling &formig(steel ball)→high strength quenching→tempering→natural cooling→package


Specification:

   Brand Material C Mn Si Cr P/S Ni
DT-1 50Mn 0.48-0.56 0.65-1.0 0.17-0.37 0.15max 0.035max 0.05max
DT-2 60Mn 0.57-0.65 0.70-1.1 0.17-0.37 0.25max 0.035max 0.05max
DT-3 65Mn 0.62-0.75 0.90-1.2 0.17-0.37 0.25max 0.035max 0.10max
DT-4 75MnCr(B2)

0.72-0.85

 0.70-0.90 0.17-0.35 0.40-0.60 0.035max 0.15max
DT-5 B3 0.50-0.65 0.4-1.0 1.40-1.80 0.77-1.10 0.035max 0.15max
DT-6 45# 0.42-0.48 0.50-0.80 0.17-0.37 0.15max 0.035max 0.05max

 

Nominal
diameter
(mm)

Diameteical
tolerance
(mm)

Weight of Single
of forging ball
in average

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Mr. Mr. Housongcun
Tel: 86-531-83801383
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Oriental Casting and Forging Co., Ltd.
GAOXINJINAN, Jinan, Shandong, China (Mainland)
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