TGK SPECIAL STEEL PVT. LTD. - HANDBOOK

The Name You Can Trust www.tgkssl.com - 93 - Descriptions and data in the file are typical cases. We will not make guarantee for them. Besides, we reserve the final right to interpret improvement in materials, quality and/or performance. Steel grade (TG H-21 DIN-2581) Steel Properties: Hot work steel with good toughness include tungsten Chromium Carbon Vanadium usually is working hardness is 40.0 to 55.0 HRC size available in round, flat and square. Applications: The H21 tungsten hot-work tool steels are mainly used for hot-working dies and toolings, e.g., die casting, extrusion and hot-forming of parts. UT STANDARD: AISI H21 AFNOR 32CDV 12-28 DELIVERY STATUS : In Annealed Condition REDUCTION RATIO : As 1:4 or 1:5 PRODUCTION PROCESS: EAF LF VD ESR (5TONS HAMMER) Forged Annealed Turned Hot Rolled & Annealed Peeled Cold Drawn/Centreless Ground : 81.0-310mm : 14.5-80.0mm : 2.0 -14.4mm ANNEALED CONDITION Round Bar: SIZE : Hot Rolled Flat Bars / Sand Blasted & Machined Straight Thickness 5mm - 410mm Width 10mm - 810mm Flat Bar: EAF LF VD ESR FORGED HOT ROLLED (850) ANNEALED CONDITION SIZE : Rounds Cold Drawn/Ground Bar 2.0-14.4mm 14.5-80.0mm Hot Rolled Annealed & Peeled Bar 81.0-810.0mm Forged + Annealed + Turned Bar Heat Treatment Condition : O Soft annealing C O Hardening C Quenching O : 780 - 800 C O : max. 240 C O : Air, oil or warmbath, 600-650 C 0 Tempering C HRC 0 100 C 49HRC 0 200 C 49HRC 0 300 C 49HRC 0 400 C 0 500 C 0 550 C 0 600 C 0 650 C 0 700 C 49HRC 51HRC 51HRC 50HRC 46HRC 36HRC Chemical Composition: (%) IS Chemical Analysis Typical Value % (Min - Max) Delivery Condition C S P Si Mn Ni Cr Mo V W other Heat Treatment Hardness H21 0.26- 0.36 0.15- 0.50 0.15- 0.40 *** 3.00- 3.75 *** 0.30- 0.60 *** *** Annealed Hb240 < *** *** HOT WORK STEEL