High Chrome Casting Grinding Steel Balls for Mining

• Casting Method: Sand Casting
• Casting Form Material: Metal
• Casting Metal: Cast Iron
• Casting Form Usage Count: Semi-permanent
• Surface Treatment: Polishing
• Surface Roughness: Ra0.05
• Model NO.: 20mm-150mm
• Coating: Sodium silicate
• Machining Tolerance: 1mm
• Standard: GB
• Certification: ISO 9001:2008
• Breakage Rate: 1% Max
• Surface Hardness: HRC60-65
• Transport Package: Steel Drum / Container Bag
• Specification: ISO9001: 2008
• Trademark: ZW
• Origin: Zhangqiu, Shandong, China
• HS Code: 73261100
• Production Capacity: 30000 Tons

Product Description

We produce 20mm-150mm high chrome casting balls ,the chrome percent is more thn 10%.
CHEMICAL ELEMENTS:


NAME
BRAND
CHEMICAL ELEMENTS
C
Si
Mn
Cr
Mo
Cu
Ni
P
S
HI-CR CASTING BALLS
ZQCr26
2.0-2.8
≤1.0
0.5-1.5
22-28
0-1.0
0-2.0
0-1.5
≤0.10
≤0.06
HI-CR CASTING BALLS
ZQCr20
2.0-2.8
≤1.0
0.5-1.5
18-22
0-2.5
0-1.2
0-1.5
≤0.10
≤0.06
HI-CR CASTING BALLS
ZQCr15
2.5-3.2
≤1.0
0.5-1.5
12-17
0-3.0
0-1.0
0-1.5
≤0.10
≤0.06
ME-CRCASTINGBALLS
ZQCr8
2.1-3.2
0.5-2.2
0.5-1.5
6-10
0-1.0
0-0.8
0-1.5
≤0.10
≤0.06
LOW-CR CASTING BALLS
ZQCr2
2.2-3.6
≤1.2
0.5-1.5
1.5-3.5
0-1.0
0-0.8
-
≤0.10
≤0.10

MECHANICAL:


NAME
BRAND
SURFACE HARDNESS
ENDURANCE IMPACT TEST(TIMES)
QUENCHED
UNQUENCHED
HI-CR CASTING BALLS
ZQCr26
≥56
≥45
≥8000
HI-CR CASTING BALLS
ZQCr20
≥56
≥45
≥8000
HI-CR CASTING BALLS
ZQCr15
≥56
≥49
≥8000
ME-CRCASTINGBALLS
ZQCr8
-
≥48
≥8000
LOW-CR CASTING BALLS
ZQCr2
-
≥45
≥8000

SIZE OF CASTING BALLS:


ITEMS
SIZES
φ25
φ30
φ40
φ50
φ60
φ70
φ80
φ90
φ100
φ110
φ120
φ130
TOLERANCE
+1.0
-0.5
+2.0
-1.0
+3.0
-1.0
+3.5
-1.5
DIFFERENCE BETWEEN MAX DIA AND MIN DIA
≤1.0
≤2.0
≤3.0
≤4.0
Cast Iron Balls Size & Weight
Size(mm)
Weight(kg/pc)
Quantity(pc/t)

Size(mm)
Weight(kg/pc)
Quantity(pc/t)
Φ30
0.11
9091
Φ90
2.90
345
Φ40
0.25
3891
Φ100
4.00
250
Φ50
0.50
2000
Φ110
5.30
188
Φ60
0.86
1153
Φ120
6.80
147
Φ70
1.37
729
Φ130
7.70
129
Φ80
2.05
487
Φ140
8.74
114