SG Pearlitic Chill rolls are basically an indefinite chill type of roll deriving good wear resitance from a combination of free carbide and hard matrix. However, the graphite is changed from flake to nodular in form. The internal notch effect of nodular graphite is relatively small and therefore SG rolls have a much higher strength and allow the use of an iron roll in applications which would represent too high a duty for a flake graphite quality.
Their indefinite chill characteristics give the rolls good hardness penetration so that they are suitable for small to medium sections and billets although they can also give good results when rolling flat products.
We, Borad Machinery, a Chinese company.
Borad manufactures cast rolls for Hot and Cold Strip Mills, Medium and Heavy Section Mills and Plate Mills, in a variety of iron and steel qualities.
With the support of our clients, we have been engaging ourselves, as one of the leading companies in field of the Diamond Core Bits, Reaming Shell, Core Barrels, Drill Rods, Casing, Other Drilling Accessories and Drilling Machine which are used mainly in mineral exploration, site investigation and water well construction.
Our success is largely due to our continuous investment in R&D, and we are also proud of experienced expert team to impose stringent standards and quality in the production of all our products.
Borad has maintained and expanded the significant market share in domestic as well as oversea countries such as America, Canada, Australia, Brazil, Mexico, India, Pakistan, etc. more than 20 countries. Our commitment goes far beyond the sale and we are dedicated to forging lasting partnerships with all our clients. Our superior products, coupled with the outstanding levels of after-sales and value-added services we provide, account for unprecedented customer satisfaction and loyalty.
