UDDEHOLM ARNE
UDDEHOLM ARNE 4 Surface Temp. of Holding time hardness prior Austenitizing martempering in martemp. to tempering temperature bath bath (obtained by
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www.uddeholm.comfor welding tool steel should be simi-lar in composition to the base mate-rial. When welding in the annealed condition, e.g. if a mould or die has to be adjusted while in the process of manufacture, it is vital that the filler metal has the same heat treat-ment characteristics as the base
Retain your edge - Uddeholm
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UDDEHOLM DIEVAR
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UDDEHOLM STAVAX ESR
www.uddeholm.comRetained austenite % 14 12 10 8 6 4 2 Retained Holding time austenite 20 min. Holding time 60 min. 1050°C 1020°C Retained austenite 1030°C Quenching media • Fluidized bed or salt bath at 250–550°C (480–1020°F), then cool in air blast •Vacuum with sufficient positive pressure
HEAT TREATMENT OF TOOL STEEL - Uddeholm Global
www.uddeholm.comaustenite. After one tempering at a high tem-perature the microstructure consists of tempered martensite, newly formed martensite, some retained austenite and carbides. Hardness Tempering temperature A = martensite tempering B = carbide precipitation C = transformation of retained austenite to martensite D = tempering diagram for high speed steel
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