Composite tubes
Published: 22 April, 2015
SANDVIK MATERIALS TECHNOLOGY reports it has supplied its Sandvik Sanicro 28 composite tubes to a eucalyptus pulp mill in Uruguay, helping to avoid loss of production time and also reduce costs for the customer.
An important part of the pulp production process involves the use of superheater panels manufactured from composite steel tubes which are used with chloride within the pulp bleaching process. Accumulations of the chemical, in conjunction with the high temperatures involved, were detrimental effect on the existing carbon steel tubes.
Based upon evaluation findings and previous experience with Sandvik products, the decision was taken to select Sandvik Sanicro 28 composite tubes for the superheaters, which were installed and are said to have since proved to be an excellent choice by reducing the amount of downtime required and enabling continuous production.
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A Caribbean producer of furfural, an organic compound derived from agricultural byproducts, reports it has replaced the existing tube in its heat exchangers with hyper-duplex stainless steel by SANDVIK MATERIALS TECHNOLOGY, and as a result says its tube lifecycles have extended from two to 15 years, with a profound impact on material costs.
