Complex carbide overlay plate for tough tasks

SSAB says that, with its high proportion of extremely hard multiple alloy complex carbides deposited on a mild steel backing plate, Duroxite 200 will last much longer than common chromium carbide overlay (CCO) products.

Jesper Gordon, director product development at SSAB, comments: “The harder and sharper material you process, the more you will appreciate Duroxite 200. If your current wear material doesn’t give the service life you are looking for, this complex carbide overlay won’t let you down."

Duroxite 200 overlay plate is delivered with an overlay thickness guaranteed to within ±10%. This is consistent throughout the material and between individual plates. The customer always receives the overlay thickness stated in the specifications.

The wear properties of Duroxite 200 are also guaranteed throughout the overlay down to 75% of the overlay thickness. The remaining 25% of overlay is the transition layer necessary to maintain good bonding to the backing plate.

Applications

Duroxite 200 is suitable for any severe sliding wear application, particularly if the temperature is above 350°C. Typical applications include cement furnace components, sinter plant parts, coal and cement pulverizer rolls, ore sintering, blast furnace hoppers, throats and ovens.

It is available through Hardox Wearparts, a network of wear service centres that includes almost 500 centres in more than 90 countries: www.hardoxwearparts.com/find-supplier.

Technical data

SSAB guarantees a maximum weight loss for overlay products according to the ASTM G65-Procedure A test. With a maximum weight loss of 0.12g, Duroxite 200 meets the high standards set by the oil sand industry.

Carbide hardness is 2500-3000 HK, the volume fraction of primary carbides is 30-50% and it has a bulk hardness of 60-65 HRC.