1.General Product Description
Every part of the grab bucket is made of chromium carbide overlay wear plate, which is suitable for unloading ore by ship unloader at ore terminal. In addition, we can make new grab buckets, repair old ones or provide accessories. Notably, most ore terminals in the country are using this grab.
2.Benefits of Chromium Carbide Overlay Grab Bucket
●Firstly, increase payload and service life, 8 times longer service life
●Secondly, reduce the downtime caused by damage replacement time, improve efficiency
●Furthermore, delivers improved wear life
●Additionally, optimized to fight sliding wear
●Finally, guaranteed hardfacing layer properties
3.Typical Applications
●Especially suitable for the bridge grab ship unloader
●Grab bucket made of Chromium carbide overlay wear plate
●Capable of unloading 10 million tons of iron ore
4.Standard Dimensions
In terms of specifications, we can make it according to the drawings provided by the purchaser.
5.Mechanical Properties
●Surface Hardness
| Number of overlay passes | Typical surface hardness |
| Double or multiple | 59 to 62 HRC (675 to 750 HV) |
NOTE：Surface hardness is measured on machined flat surface just below overlay surface
●Wear Properties
| Number of overlay passes | ASTM G65 – Procedure A weight loss | |
| Surface | 75% depth | |
| Double or multiple | 0.16g maximum | 0.16g maximum |
NOTE：
1.ASTM G65 is a standard test measuring sliding abrasion resistance using a dry sand/rubber wheel apparatus. Specifically, ASTM G65-Procedure A is the most severe test method.
2.Therefore, ASTM G65 wear test is conducted at 75% depth of the overlay materials to ensure consistently good wear resistance from the top surface through 75% of the depth of the overlay.
