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High Chrome Grinding Ball

Chengde Rongmao Cast Steel Co.,Ltd
Chengde Rongmao Cast Steel Co.,Ltd
City: Chengde
Province/State: Hebei
Country/Region: China
Tel: 86-10-87217707
Contact Person:
Mr Jason Zhang

High Chrome Grinding Ball

Brand Name : Rong Mao
Place of Origin : China
MOQ : 1 mt
Price : USD 20/MT
Supply Ability : 100000mt/year
Delivery Time : 15-30 days
Packaging Details : bags, iron drums
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High Chrome Grinding Ball

Size of casting iron ball:

Small size: Ø10mm--Ø40mm;

Medium size: Ø50mm--Ø90mm;

Big size: Ø100mm--Ø150mm.

Series of balls according to the chrome percentage:

High chrome casting ball: More than Cr:10%;

Medium chrome casting ball: Cr:3%-9%;

Low chrome Grinding ball: Cr:1%-3%.

Features of casting grinding balls

(1) High hardness: surface hardness of casting iron ball is to HRC 58-65. The tolerance of the core hardness and surface hardness is not over 2HRC;

(2) Good Impact Toughness: impact toughness of chrome balls is more than 4J/cm²;

(3) Low Broken Rate: the actual broken rate is not higher than 1%;

(4) Good Wear-resistant: the wearing rate of high cast iron ball is 30-50g/ton in cement industry, 350-430g in gold mines and even lower in some iron mines.


CHEMICAL COMPOSITION(%)
TypeCSiMnCrPSMoCuNi
ZQCr 132.0-3.20.3-1.20.3-1.511-13≤0.10≤0.060-1.00-0.08--
ZQCr 172.0-3.00.3-1.30.3-1.515-18≤0.10≤0.060-1.00-0.08--
ZQCr 202.0-2.80.3-1.00.3-1.518-22≤0.10≤0.060-1.00-0.08--
ZQCr 262.0-2.80.3-1.00.3-1.522-28≤0.10≤0.060-1.00-0.08--
HRCImpact toughness ak(J/cm2)Time of falling ballsMicrostructure
58-66≥4.0≥15000M+C
M - Martensite C - Carbide

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