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air cooling alloy carbides alloy content alloying elements annealed ASM International atoms austenite grain austenitizing temperature bainite carbide particles carbon content carburized cementite chromium coarsening coatings cold-work Composition cooling rates cracking Crucible Steel crystal curves decarburization diagram diam dimensional changes ferrite Figure forging formation fracture function of tempering furnace Hardening temperature Heat Treating heat treatment High Speed Steel high-carbon high-chromium high-speed steels high-speed tool steels higher hot hardness hot-work steels hot-work tool steels impact increasing intergranular fracture iron Krauss low-alloy lower matrix Metals microstructures mold steel molybdenum ness nitriding oil quenched pearlite perature phase preheat produce properties range retained austenite salt bath secondary hardening shown in Fig shows silicon Source specimens steel Ref strength structure Table Teledyne VASCO tempered martensite Tempering temperature tensile thermal tion tool steels toughness Trans tungsten tungsten hot-work ture Type vanadium various water-hardening wear resistance
Page 1 - Chromium 0.95-1.05 0.25-0.45 0.20-0.40 1.25-175 — — 0.30-0.50 certain hand tools, precision gages, or in mechanical fixtures for cutting, shaping, forming, and blanking of materials at either cold or elevated temperatures. This definition is not intended to include that type of tonnage production open hearth steel used in the manufacture of ordinary mechanics...
Page 3 - And as when armourers temper in the ford The keen-edged pole-axe, or the shining sword, The red-hot metal hisses in the lake, Thus in his eye-ball hiss'd the plunging stake.
Page 17 - Table 6 (continued) a) A, air cool; B, brine quench; O. oil quench; S, salt bath quench; W. water quench, (b) After tempering in temperature range normally recommended for this steel, (c) Carburized case hardness, (d) After aging at 5 10 to 550 °C (950 to 1025 °F).
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