Crusher wear liner replacement is probably one of the most important areas and decisions here can have a significant influence on the cost per tonne produced. When decision time comes to buy replacement manganese steel wear liners for your plant, it is important to choose the right crusher wear liner manufacuturer. To ensure you will be getting the best liner profile option for your plant, and a quality product that will perform without premature failure or damage to your crusher, the quarry manager should consider the following points and ask the relevant questions:

  1. Where is the crusher wear liners manufactured?
  2. What liner material best suits your crushing plant?
  3. What should the end user look for ?

Where is the crusher wear liners manufactured?

There are hundreds of crusher liners casting foundries in the world. Most of foundries located in developing countries. Because cast foundry will bring large number of enviroment problems , on the other hand, casting industry are also need care about the cost. JYS Casting located in the west of China,which covers an area of 40 acres, a total investment of 70 million yuan. It specializes in the production, sales and research of wear-resistant, high temperature-resistant, corrosion-resistant materials with the annual production capacity of over 15,000 tons.

Which crusher wear liners material best suits for your crushing plant?

Different crusher wear liners need choose different material.

Manganese Steel Casting Products: Jaw Plates,Liner Plate,Cheek Plate, Concave,Mantles, Ball Mill Liner, Roll Mill Liner,Grind Balls , manganese casting blow bars, and some others.

Manganese steel was invented by Sir Robert Hadfield in 1882 and was unique in that it combined high toughness and ductility with exceptional work-hardening capacity. The material developed for crusher wear liners contained around one per cent carbon (C), 11 per cent manganese (Mn) and the balance iron (Fe). This material was cast followed by heat treatment after initial cooling. The
heat treatment process included heating to above 10000 C, to convert the brittle as-cast multi-phase microstructure to a single phase austenite, followed by a rapid water quench. The single phase austenitic microstructure remains stable at room temperature, producing a ductile high strength material resistant to the fatigue subjected by the rock crushing process. The material can readily revert back to the brittle as-cast structure in weld areas or during other thermal processes and care should be taken to avoid this. The standard Hadfield austenitic manganese steel described in Australian Standard AS2074 Grade H1A remains the most reliable material for crusher wear liners. The material has a starting Brinell hardness of around 200 and the ability for the working surface to harden to above 500. With C above one per cent and Mn above 11 percent, it is considered the best material for the crushing of high compressive strength rock. Increasing the carbon and manganese level does change material properties that can improve the wear life when crushing lower compressive strength rock, although the reduction in the liner fatigue resistance must be considered.

JYS Casting’s  High Manganese Technical Sheet
Element Per.(%) C Si Mn Cr S P
Mn14 0.9-1.05 0.3-0.9 11.0-14.0 ≦0.04 ≦0.06
Mn14Cr2 1.05-1.35 0.3-0.9 11.0-14.0 1.50-2.50 ≦0.04 ≦0.06
Mn18 1.05-1.35 0.3-0.9 16.0-19.0 ≦0.04 ≦0.06
Mn18Cr2 1.05-1.35 0.3-0.9 16.0-19.0 1.50-2.50 ≦0.04 ≦0.06

 

Chromium Steel Casting Products: Blow bar, Impact plate and others chromium casting parts.

Trident Components offer chromium steel/stainless steel die casting. Chromium steel, also known as stainless steel, is an alloy of chromium and steel, and Trident Components offers it for all of your die casting needs. All of our materials, warehousing facilities, and production capabilities will give you an economical and accurately-cast part. Trident Components is highly experienced in working with all grades of stainless steel suitable for almost any application.High chromium Steel Is a good performance and special attention to the anti-wear materials. It is much higher than the alloy steel wear resistance, and much higher than the general white cast iron toughness, strength, while it also has good resistance to high temperature and corrosion resistance, combined with convenient production, cost is moderate, and was Known as the contemporary one of the best anti-abrasive wear materials.

Chromium Steel Grades and Chemical Composition

Grades
C
Mn
Si
Ni
Cr
Mo
Cu
P
S
KmTBCr12
2.0-3.3
≤2.0
≤1.5
≤2.5
11.0-14.0
≤3.0
≤1.2
≤0.10
≤0.06
KmTBCr15Mo
2.0-3.3
≤2.0
≤1.2
≤2.5
11.0-18.0
≤3.0
≤1.2
≤0.10
≤0.06
KmTBCr20Mo
2.0-3.3
≤2.0
≤1.2
≤2.5
18.0-23.0
≤3.0
≤1.2
≤0.10
≤0.06
KmTBCr26
2.0-3.3
≤2.0
≤1.2
≤2.5
23.0-30.0
≤3.0
≤1.2
≤0.10
≤0.06

 

What should the end user look for ?

  • Ask the supplier for test certificates:Chemistry,Dimensional inspection and Heat treatment.
  • New wear liners supplied for your crusher are usually supplied neatly painted and packed for good presentation. An initial visual inspection is usually all that is possible and provided there are no surface imperfections present the liner is stored for later use.
  • There may be an incentive to dispose of worn crusher liners and clean up the yard. An inspection of the worn liners is the best way to examine how successful you were with liner selection and identify any quality issues that have been exposed during the life of the liner. Changes and corrective actions can be made before ordering future sets.