Prime® rolls are static cast, designed to provide any rod and bar or section mill with a cost effective roll material that is capable of exceeding standard mill tonnages.
Heat treated Cr-Ni-Mo alloyed pearlitic / Bainitic nodular cast iron
|GRADE||PRIME® I||PRIME® II||PRIME® III|
|APPLICATION||Roughing stands for Billet Mills, Roughing & Intermediate Stands in Rod, Bar, Light & Medium Section mills; Seamless mills*||Intermediate, Finishing stands for Medium Section Mills, Roughing, Intermediate stands of Wire, Bar and Light Section mills, Seamless mills*||Intermediate, Finishing stands for Medium Section Mills, Roughing and Intermediate stands of Wire, Bar and Light Section mills, Seamless mills*|
|C%||3 - 3.5|
|Si%||1 - 2.5|
|Mn%||0.3 - 1.5|
|Ni%||1 - 5|
|Cr% + Mo%||Up to 2.5|
*The hardness adjustment is obtained during a complex heat treatment process. For production, we need a range of 5 ShC which needs to be specified in the roll order.
Our technical team can help to determine the most suitable grade, degree of hardness and manufacturing method to meet with individual mill conditions and specifications.