Cast Grinding Steel Ball

Introduction:
Dry mill casting steel balls for grinding in power plant
Size: diameter 17-150mm
Description:
High hardness, good wear resistance, good toughness, even wearing, no breakage.
Product category:
Low chromium casting grinding steel ball
Hardness: hrc45-55

(1) Product
Superior raw materials, advanced automated equipment, unique heat treatment technique and strict quality control system contribute to better performance for the general hardness of shandong iraeta grinding steel ball.
1) production standard Yb/t091-2005
2) size: 25-150 mm
3) surface hardness Hrc57-67 hrc
4) volume hardness Hrc56-64
5) breakage rate <0.57%
6) lost round rate <1%
7) impact toughness 12 j/cm2
8) material : customized raw material, b2, b3, bu chrome
9) forging way: hydraumatic
10) core hardnes =50;=55;=58;=60
11) dropping test: =12000








(2) Raw material
With the purchase of 400 thousand tons of steels each year, we are able to provide customizable raw materials and get vip service from steel plants. All raw materials are purchased directly from standard steel enterprises such as laiwu steel group, shijiazhuang steel, huaiyin steel, etc. The quality of different batches of raw materials is quite stable.

(3) Equipment
Iraeta has 7 full automatic hot-rolling steel ball production lines. We are among the minority of suppliers who are able to directly produce balls with dia80mm and the above size by hot-rolled technology.

(4) Lab
A national certified laboratory in accordance with the international standard iso17025 was established in iraeta.

(5) specialist
1) customized raw material. ( the formal steel material factory)

2) high automatic equipment.( automatic hot-rolling production lines )

3) the unique heat treatment. ( introducing spainsh technology)

4) strict quality control. ( equipped with national approved laboratory meeting requirements of iso17025)

5) iso9001, iso14001 , ohsas18001, etc.

(6) packing
1.Container bag(1000kg/bag)
2.Iron drum
3.According to your requirements

Items      Brand Surface hardness (HRC) Endurance impact test(Times)

Quenched Unquenched
Extra high chrome casting alloyed  ball ZQCr20 =63 =45 =8000
High chrome casting alloyed ball ZQCr15 =63 =45 =8000
High chrome casting alloyed ball ZQCr13 =63 =49 =8000
Middle chrome casting alloyed ball ZQCr7 — =48 =8000
Low chrome casting alloyed  ball ZQCr2 — =45 =8000
Bainite ductile casting alloyed ball ZQSi3 =50 — =8000

Applied fields of our grinding balls: 
 
a) Mines;
 
b) Cement plants;
 
c) Power stations;
 
d) Chemical industry

(1)Product
Superior raw materials, advanced automated equipment, unique heat treatment technique and strict quality control system contribute to better performance for the general hardness of shandong iraeta grinding steel ball.
1) production standardYb/t091-2005
2) size: 25-150 mm
3) surface hardnessHrc57-67 hrc
4) volume hardnessHrc56-64
5) breakage rate<0.57%
6) lost round rate<1%
7) impact toughness12 j/cm2
8) material : customized raw material, b2, b3, bu chrome
9) forging way: hydraumatic
10) core hardnes =50;=55;=58;=60
11) dropping test: =12000

(2)Raw material
With the purchase of 400 thousand tons of steels each year, we are able to provide customizable raw materials and get vip service from steel plants. All raw materials are purchased directly from standard steel enterprises such as laiwu steel group, shijiazhuang steel, huaiyin steel, etc. The quality of different batches of raw materials is quite stable.

(3)Equipment
Iraeta has 7 full automatic hot-rolling steel ball production lines. We are among the minority of suppliers who are able to directly produce balls with dia80mm and the above size by hot-rolled technology.

(4)Lab
A national certified laboratory in accordance with the international standard iso17025 was established in iraeta.

(5) specialist
1) customized raw material. ( the formal steel material factory)

2) high automatic equipment.( automatic hot-rolling production lines )

3) the unique heat treatment. ( introducing spainsh technology)

4) strict quality control. ( equipped with national approved laboratory meeting requirements of iso17025)

5) iso9001, iso14001 , ohsas18001, etc.

1 ) product feature

1 > high hardness: surface hardness: hrc57-67 hrc, volume hardness hrc56-64.
2 > high impact toughness: the impact toughness of our grinding balls is more than 12 j / cm2.
3 > low broken rate: the actual broken rate is not higher than 1%.
4 > good wear-resistant and lower wear rate.

The product description:
1 high chromium casting ball
Hardness: hrc 60-66
Microstructure: m+c
Chemical composition(%):c:1.9-3.3 , si:0.3-1.0 , mn:0.2-0.8 , cr:10.0-30.0,
P:0. 9 max , s:0.9 max

2 medium chromium casting ball
Hardness: hrc 48-55
Chemical composition(%): c:2.0-3.3, si:0.3-1.0;mn:0.3-1.0, cr:3.0-6.0,
P:0.1 max, s:0.12 max
Microstructure: p+c

3 low chromium casting ball
Hardness: hrc46-53
Chemical composition(%):c:2.0-3.3, si0.3-1.0, mn:0.3-1.0, cr:1.0-2.5,
P:0.1 5 max, s:0.20 max
Microstructure: p+c

Grinding media ball, grinding steel balls for mines, cement plants
Forged steel balls:
Diameter:20mm-150mm
Hardness: hrc55-65

2.High chrome casting iron balls:
Diameter:17mm-120mm
Cr content:10-14%
Hardness:hrc60-66

Features: high and steady hardness, no breakage, good wear resistance and even good wearing.

3.Grinding steel rods in rod mills:
Diameter:10-100mm
Length:2.5m-6m
Hardness:hrc40-55

Features: steady hardness, straightness, and good wear resistance.

We have established and are establishing friendly good cooperation with some famous mines in the world, such as anglo gold, codelco, bhp, erdenet copper corporation etc. So please inform us if you are interested in our products, we can discuss more on our business.


Container bags, steel drums£¨1000kg£©

ItemProductSurface hardnessCore hardness
1High chrome cast grinding media Hrc 58-65More than hrc 55
2Low chrome cast grinding media Hrc 48-55More than hrc 46
3Medium chrome cast grinding mediaHrc 50-60More than hrc 48
4B2 forged grinding mediaHrc 58-65More than hrc 55
5B3 forged grinding mediaHrc 58-65More than hrc 55
6Bu forged grinding mediaHrc 58-65More than hrc 55

1 high chrome casting balls
Size: 6mm-120mm
Hardness: hrc60-66; chrome content: 10-30%

2 low chrome casting balls
Size: 6mm-120mm
Hardness: hrc46-53; chrome content: 0.5-3.5%

Packing: 1.Container bags 2. Steel drums

The major character of our grinding balls is that: high hardness, no breakage, lower wearing, lower price.
It is mainly used in cement plants, mines, power stations etc.
Our factory manufacture and export high chrome casting ball as follows:

Specifications:
1) diameters: dia. 17 - 130mm
2) hardness: hrc 58-63
3) chemical elements(%):
C:1.9-3.3 , si:0.3-1.0 , mn:0.2-0.8 , cr:10.0-30.0, p:0. 9 max , s:0.9 max

Characteristics:
A) high hardness b) no breakage c) even wearing d) good wear resistance

Applied fields:
A) mines b) cement plants c) power stations d) chemical industry

Outer packing:
Container bags, steel drums
High chrome a


Container bags, steel drums

Dia 20mm --- dia 150mm; the high, medium and low chrome alloyed casting iron balls: dia17mm --- dia 190mm.


By steel drum