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A process in which an iron-base alloy is heated to a temperature above the transformation range and subsequently cooled in still air at room temperature


A combination of heating and cooling operations applied to a metal or alloy in the solid state to obtain desired conditions or properties.


A oil base combination surface involving a change in the composition of the outer layer to blacken material

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We are a family owned business, established in 2000. We special ise in case hardening, harden & temper, annealing, stress relieve, normalising etc. With over 45 years experience we provide the necessary expertise for finding solutions to your heat treatment requirements.
About

UNIVERSAL HEAT TREATMENT was founded by Uli Harnys in 1998 Uli Harnys, was born and raised in Germany. He completed his apprenticeship through ALOIS NEUBAUER – Germany, manufacturers of surgical instruments. He then immigrated to South Africa in 1962 and has subsequently accumulated 51 years of experience the industry. requirements.

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