Product Details

Product Description

2015 selling hot impact test 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.

Production Process:

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

Heat Treatment→ Dimension Test → Hardness Test →Packing →Transportation

Main Specification and Technology

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