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Alloy Digest (1959) 8 (8): TS-84.
Published: 01 August 1959
... BETHLEHEM 57HW is the 9% tungsten type of hot-work tool steel, having excellent red-hardness and abrasion resistance compared with relatively good shock resistance for high operating temperatures. It corresponds to AISI Type H21 hot work tool steel. This datasheet provides information on...