(AISI Type M4)
(UNS T11304)

Nominal Analysis
1.35 C, 0.30 Mn, 0.30 Si, 0.06 S, 4.50 Cr, 4.50 Mo, 4.00 V, 5.50 W, Bal. Fe

A molybdenum/tungsten-bearing high-speed tool steel with high carbon and vanadium contents. This grade provides very high wear resistance along with high strength. It is manufactured using powder metallurgy processing techniques, and hot worked into various mill forms.

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