The great benefit of martempering is that components do not suffer from size alteration and distortion. The austenitised components are quenched to a temperature close to the martensite starting point to ensure temperature equalisation between surface and core. This allow a martensitic formation being as uniform as possible during further cooling. Furthermore, for austempering the AS salts are the best choice as these assure the best attainable toughness.
Product | Application | Working temp. in °C |
---|---|---|
AS 140 | For austempering, martempering, tempering and blueing. Not suitable for components which are heated above 950 °C or treated in a bath containing more than 13 % KCN. | 160 – 550 |
AS 220 | For austempering, martempering, tempering and blueing. Not suitable for components which are heated above 950 °C or treated in a bath containing more than 13 % KCN. | 250 – 550 |
GS 430 | For quenching and tempering parts which are austenitised at temperatures above 950 °C. | 500 - 700 |
All the above salts are kept in stock in the UK. Additional quenching and tempering salts are available from our manufacturing site in Germany. For a comprehensive list of our product range, follow this link to the HEF Durferrit page.
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