Quenching And Tempering

quenching

The great benefits of martempering are the lowest grade of size alteration and distortion. The austenitized components are quenched to a temperature close above the martensite starting point to ensure temperature equalization between surface and core.

This allow a martensitic formation being as uniform as possible during further cooling.

Moreover for austempering the AS salts are the first 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

AS 235

Non toxic salt 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.

280 – 550

AS 300

Non toxic salt for austempering, tempering and blueing. Not suitable for components which are heated above 950 °C or treated in a bath containing more than 13 % KCN.

340 – 550

GS430

For quenching and tempering parts which are austenitized at temperatures above 950 °C.

500 - 560