Name: High chrome forged 25mm 36" hollow steel ball
Brand: YUNTIAN
Availability: InStock

Product Details

Product Description

High chrome forged 25mm 36" hollow steel ball

The application of grinding steel balls is ultrafine powder preparation and processing.They are widely used in cement building materials,metal mine,coal slurry thermal power,chemical,ceramic material,light paper making,magnetic materials and many other industries.The main advantages of the balls are with high hardness and tenacity,low abrasion and less crush.

Specification

Diameter(mm)
10	12.7	15	17	20	25	30	40	50	60	70	80	90	100	110	120	125	130

Chemical composition

Name	style	C	Si	Mn	Cr	Mo	P	S
Normal	ZQCr10	1.8-3.2	0.3-1.2	0.2-1.0	10-13	micro-	≤0.10	≤0.10
Special	ZQCr26	2.0-3.0	≤1.0	0.2-1.0	22-28	≤1.0	≤0.10	≤0.08
	ZQCr20	2.0-3.0	≤1.0	0.2-1.0	18-22	≤1.0	≤0.10	≤0.08
	ZQCr17	2.0-3.2	≤1.0	0.2-1.0	13-18	≤1.0	≤0.10	≤0.08

Properties and Micro-structure

Name	Style	HRC		AK(J/cm²)	Metallographic structure	Falling ball Impact fatigue Life(times)
Name	Style	Quench	Not quench	AK(J/cm²)	Metallographic structure	Falling ball Impact fatigue Life(times)
Normal	ZQCr10	≥58	≥50	≥4.0	M+C	≥18000
Special	ZQCr26	≥58	≥45	≥5.0	M+C	≥18000
	ZQCr20	≥58	≥45	≥4.0	M+C	≥18000
	ZQCr17	≥58	≥49	≥4.0	M+C	≥18000

Casting ball size and weight

Diameter	weight	Pieces Per Ton	Diameter	weight	Pieces Per Ton
Φ30	0.11	9091	Φ90	2.90	345
Φ40	0.257	3891	Φ100	4.0	250
Φ50	0.50	2000	Φ110	5.30	188
Φ60	0.867	1153	Φ120	6.80	147
Φ70	1.37	729	Φ125	7.75	129
Φ80	2.05	487	Φ130	8.74	114

Production Flow

Raw Material → Cutting → Stove → Forging → Transfer Machine → Quenching

↓

Transportation ← Packing ← Hardness Test ← Dimension Test ← Heat Treatment

Application

Packaging & Shipping

Flexible container bags or steel drums, depends on customer’s need

Warranty

Quality Guarantee:Wear rate,breakage guarantee

1)Before shipment,we choose SGS inspection,if the grinding ball pass the testing,we could ship the goods.

2)Below 1% breakage no refund

3)1-3% breakage Free of charge replacement of involved quantity.

4) Above 3% Free of charge replacement of the effected size of forged grinding balls in which the breakage occurred at the same shipment.

5)Warranty period of HAOYANG Forged Steel Grinding Media Balls:one and a half years after shipment or one year after use,we will give priority to either early one.

6) Free samples can be provided for your testing.

Our Services

Metal mold process
Sand mold process (Furan resin)
Chemical analyze (Spectrometer)
Heat treatment (Quenching & Tempering)
Inspection (Hardness, Wear & Breakage tests)
5S & QC
ISO9001:2000 & ISO14001 (Recycling system)