Title

Improving Integrity of Hardmetals Used for Rod Mill Rolls Through Research and Development

Improving Integrity of Hardmetals Used for Rod Mill Rolls Through Research and Development

Authorship

I. T., NORTHROP,

I. T., NORTHROP,

I am this author

DOI

10.5151/2594-5297-LA2887

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Abstract

Hardmetals containing between 12 and 30% cobalt binder have been used for many years in hot steel rolling applications. Coupled with dramatic improvements in productivity within the steel industry has come a need for hardmetals with enhanced mechanical, thermal and chemical properties. Hardmetal producers have met this challenge by improvements both in manufacturing technology and research and development of alternative binders to cobalt. During the past decade, hardmetals with alloy binders based upon Nickel/Cobalt/Chromium have begun to replace the traditional cobalt bonded grades for hot rolling of steel rod. The effect of these alternative binders upon the mechanical properties and corrosion resistance of hardmetals have been studied in this paper, and the results obtained compared with those of standard cobalt grades.

Hardmetals containing between 12 and 30% cobalt binder have been used for many years in hot steel rolling applications. Coupled with dramatic improvements in productivity within the steel industry has come a need for hardmetals with enhanced mechanical, thermal and chemical properties. Hardmetal producers have met this challenge by improvements both in manufacturing technology and research and development of alternative binders to cobalt. During the past decade, hardmetals with alloy binders based upon Nickel/Cobalt/Chromium have begun to replace the traditional cobalt bonded grades for hot rolling of steel rod. The effect of these alternative binders upon the mechanical properties and corrosion resistance of hardmetals have been studied in this paper, and the results obtained compared with those of standard cobalt grades.

Keywords

Hardmetals; cobalt binder; hot rolling; rod mills; alloy binders; corrosion resistance; mechanical properties

Hardmetals; cobalt binder; hot rolling; rod mills; alloy binders; corrosion resistance; mechanical properties