High Chrome 11-12% Casted Cleand and Oil Quenching Grinding Media

• Customization: Available
• Material: Chromium Alloy
• Content: Cr12
• Model NO.: ZQCR12
• Usage: Grind, Refractory Material
• Processing Type: Casting
• Size: Middle
• Color: Black
• Customized: Customized
• Hardness: 60 HRC
• Impact: More Than 4.5 J/Cm2
• Microstructure: M+C
• Falling Time: More Than 18000 Times
• Weight of Grinding Ball: 0.867kg/Unit
• Chrome Content: 12%
• Feature: Low Breackage Rate
• Advantage: High Wear Resistance
• Transport Package: Drum or Bag
• Specification: 30mm 40mm 50mm to 200mm
• Trademark: CD
• Origin: China
• HS Code: 7325910000
• Production Capacity: 100000 Tons / Year
• Package Size: 50.00cm * 50.00cm * 100.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

High Chrome 11-12% Casted Cleand and Oil Quenching Grinding Media

Chemical Composite of  60mm diameter Cr15 chrome cast iron ball:
 

Our premium grinding media combines high-chrome alloy (11-12% Cr) with precision casting, meticulous cleaning, and advanced oil quenching. Engineered for extreme abrasion and impact resistance, these quenching grinding media deliver unmatched longevity and efficiency in industrial milling. Ideal for minimizing operational costs while maximizing productivity.  

Chemical Composition

 C: 2.0-2.6
Si: ≤1
Mn: 0.3-1.5
Cr: 12%
Mo:≤1
Cu:≤1
Ni:≤1
P:≤0.06
S:≤0.06
Size diameter range:5mm 15mm 17mm 20mm 25mm 30mm40mm 50mm 60mm 70mm 80mm 90mm 100mm 110mm 120mm 125mm 130mm to 200mm.

Specification

The Mechanical Properties and Microstructure of the Cr15 Chrome grinding balls

Item	Hardness (HRC)	Impact(J/CM2)	Microstructure	Falling Times
ZQCr28	≥58	≥4.8	M+C	≥18000
ZQCr26	≥58	≥4.8	M+C	≥18000
ZQCr20	≥60	≥4.8	M+C	≥18000
ZQCr15	≥60	≥4.8	M+C	≥18000
ZQCr12	≥60	≥4.5	M+C	≥18000
ZQCr8	50-65	≥3.5	M+C / P+C	≥12000
ZQCr5	49-62	≥3.0	M+C / P+C	≥12000
ZQCr2	≥48	≥3.0	P+C	≥10000
CADI	55-60	≥10	B+FE	≥25000
C- Carbode     M-Martensite    P-Pearlite  B-Bainite  Fe-Ferrite

Key features

- **High Hardness (HRC 60–65):** Oil quenching ensures uniform hardness and deep martensitic microstructure.  
- **Superior Wear Resistance:** 11–12% chrome content minimizes wear in abrasive environments.  
- **Low Breakage Rate:** Optimized heat treatment enhances impact toughness (>4 J/cm²).  
- **Precision-Cast & Cleaned:** Smooth surface, spherical shape, and impurity-free structure for consistent grinding.  
- **Corrosion Resilience:** Chromium carbide network resists chemical degradation.  

 

Application of High Chrome 11-12% Casted Cleand and Oil Quenching Grinding Media

 **Mining:** Crushing gold, copper, and iron ores in ball/SAG mills.  

- **Cement Plants:** Grinding raw materials, clinker, and coal.

 
- **Power Generation:** Pulverizing coal in thermal power stations.

 
- **Ceramics & Paints:** Fine-grinding pigments and raw materials.  

- **Chemical Processing:** Size reduction of minerals and fertilizers

Grinding balls for ball mills

Grinding balls for SAG mill

Grinding balls for initial fill installation

Technical Specifications

Specifications (diameter)	Weight of per ball	PCS/TON	Density of CBM
15mm	diameter from 5mm to 200mm available Please in quiry me for more details.
17mm
20mm
25mm
30mm
40mm
50mm
60mm
70mm
80mm

Company Profile

Production Lines

Automatic Four-drive heat treatment production lines

Automatic microsphere micro-forging production lines

Ginding media Automatic quenching lines

Automatic Quenching and heat treatment production lines

Hebei Chengda Wear Resistant Material Co.,ltd

Our factory is founded in 2004,one of the leading manufacturer of grinding media such as various of chromium alloy grinding balls, steel gorging,hammer,linning plate etc,annual production capacity over 100000 tons.

Packaging & Shipping

Plastic bag packaging for the grinding media

Packed by metal bucket, then loaded by woden pallet

Full and accurate testing equipment for grinding balls

Before deliverying ,the chrome cast grinding media will be tested in Hardness,Falling ball,Impact and Metallographic strictly.                                                                                                                                                                                

Quality Testing

Rigorous quality control guarantees reliability. Every batch undergoes

Strict Quality Testing

- **Chemical Analysis:** Spectrometry to verify Cr, C, Mn, and Si content.  
- **Hardness Testing:** Rockwell (HRC) and Brinell (HB) measurements at core/surface.  

- **Impact Toughness:** Charpy tests to assess fracture resistance.  
- **Metallography:** Microstructure examination for carbide distribution.  
- **Breakage/Wear Tests:** Simulated grinding cycles to validate durab