Low Chromium Alloy

Model:Low chromium alloy grinding ball
Weight:0.11~8.74kg
Surface hardness:≥45 HRC
Application range:It is widely used in powder preparation and superfine deep processing of industries, such as building materials, mine, chemical engineering, ceramic material, papermaking, magnetic materials.

Low Chromium Alloy Grinding Ball

Introduction

Low chromium alloy grinding ball is widely used in powder preparation and superfine deep processing of industries, such as building materials, mine, chemical engineering, ceramic material, paper-making, magnetic materials. Its surface hardness can up to more than 45HRC, hardness gradient is evenly distributed. It has good toughness and breaking resistance is 5 times than ordinary grinding ball. There is no deformation. It increases recovery rate of concentrate and production capacity of mill, prolongs the service life of liner plate of the mill, and reduces the cost of production.

Production Technology

Medium frequency furnace smelts high quality steel scrap, chromium alloy and other alloy materials first, after micro alloying processing is castmolding with steel model.

Constant temperature pouring ensures there is no sand inclusion, stoma, collapse and other quality defects.

Heat treatment oil quenching process, quenching and tempering will change internal structure of the ball, reduce the internal stress of sphere, ensure breaking

rate to further improve the performance after quenching.

Semi-finished product and finished product adopt advanced spectrum detection to ensure the stability of chemical composition and performance.

Chemical composition

Name

chemical composition(%)

C

Si

Mn

Cr

Mo

Cu

P

S

Low chromium alloy grinding ball

2.2-2.5

≤1.2

0.5-1

0.8-1.8

0.6-1

≤1

≤0.05

≤0.05

Mechanical properties and metallographic structure

Name

Surface hardness

(HRC)

Impact value

(J/cm2)

metallographic structure

Falling ball impact fatigue service life

Low chromium alloy grinding ball

≥45

≥2.5

P+C

≥10000

P- pearlite C- carbide

Specification

specification(mm)

unit weight(kg)

quantity(pc/t)

specification(mm)

Unit weight(kg)

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

We can provide customized design according to our clients’ demands and also refine our products by our clients’ feedback.

Contact:Tang

Tuxingsun Mineral processing experts
WhatsApp:+8613183398111

Email: alex@unitedcc.net