Grinding Ball | Global Trade leader ecrobot

Product

Grinding Ball

Posting date : Jan 11, 2017

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Membership

Free Member Scince Jan 11, 2017

FOB Price

$1-100000

Min. Order Quantity

Supply Abillity

100

Port

Shanghai, Qingdao,Shenzhen

Payment Terms

100% in advance of shipment

Package

Standard package

Keyword :

grinding steel ball

Category

Contact

Jotty

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Product Detail

Company Info

Quick Detail

Place of Origin

China [CN]

Brand Name

MES

HS-CODE

Package & Delivery Lead Time

Package

Standard package

Detailed Description

High Chromium Alloy Grinding Ball

Introduction

High 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 65HRC, hardness gradient is evenly distributed. Low wear friction, good toughness, product quality is not lower than the standard GB/T17445-2009, 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 cast molding 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（%）
Name	C	Si	Mn	Cr	Mo	Cu	P	S
Ordinary high chromium ball	2.0-3.3	≤1.2	0.3-1.5	10-13	0-3.0	≤1.2	≤0.1	≤0.06
Special high chromium ball	2.0-3.3	≤1.2	0.3-1.5	15-23	0-3.0	≤1.2	≤0.1	≤0.06

Mechanical properties and metallographic structure

Name	Surface hardness （HRC）	Impact value（J/cm2）	Metallographic structure	Falling ball impact fatigue service life
Ordinary high chromium ball	≥58	≥4	M+C+A	≤Φ80	≥15000
				≥Φ80	≥10000
M- martensite C- carbide A- retained austenite

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