MAXI MELT invested in metallurgical research and this allowed us to offer an exclusive range of bimetallic alloys that solve wear problems. The bimetallic alloys are produced in modern sophisticated centrifugal casting facilities.
The advantage of our bimetallic alloys is the high and homogeneous hardness throughout the whole layer thickness which ranges from 1.5 to 2 mm thickness. The lifetime increase of the bimetallic cylinder against a nitrided cylinder may exceed 12 times or more. The price-quality-lifetime ratio is therefore very beneficial for the bimetallic cylinder.
We have five different alloy solutions listed in the table below. We qualified the quality of the different alloys according abrasion and or corrosion resistance to enable a quick selection.
|Type||Alloy||Alloy Components||Hardness (HRC)||Abrasion resistance||Corrosion resistance|
|KB100||Fe||Ni, C, B||58 – 65||xx||x|
|KB109||Fe-Cr||Ni, Mo, Cu, C, B||64 – 69||xxx||xxx|
|KB200||Ni-Co||Cr, Mo, B||48 – 56||x||xxxxx|
|KB300||Ni||Cr, Ni, Co, B, W||60 – 66 (a)||xxxx||xxxx|
|KB350||Ni||Cr, Si, B, W||60 – 66 (a)||xxxxx||xxxx|
Suitability: (x good) to (xxxxx excellent).
(a) Hardness of matrix, tungsten carbides have a hardness of 89 HRC.
Base materials for liners
|Type||Yield point at 300°C||Application|
|KB63||630 N/mm2||Injection moulding|
|KB48||480 N/mm2||Extrusion, Injection|