AISI H11 tool steel is a 5% chromium hot work tool steel that is represented by its excellent impact toughness. Chromium hot-work tool steels are designated as group H steels according to the AISI classification system, and specified in ASTM A681standard.
Chemical Composition (AISI H-11)
|AISI H-11||0.36 - 0.42||0.9-1.2||0.3-0.5||max.-0.030||max.- 0.030||4.8- 5.5||1.1-1.4||0.3-0.5|
1.H11 has high quality and superior cleanliness rate
2.H11 could decline budget costs as pre-hardened treatment.(eliminate time, extra money and risk)
3.Finer grain size, fully spheroidization structure.
4.Low container of the gas
5.High resistance to temperature, wear test, thermal crack
6.High shock resistance, high strength and toughness at high temperatures
7.Mould can extend materials life-time and raise high wear-resistance by Nitriding treatment.
4.Press casting mold
5.Shrink work chucks
7.Bridge kind tools
|Soft Annealing °C||Cooling||Hardness HB|
|740 – 805||Furnace||max. 230|
|Stress-relief annealing °C||Cooling|
|approx. 605 – 640||Furnace|
|Hardening °C||Quenching||Hardness after quenching HRC|
|1000 – 1035||Air, oil or||55|
|Tempering °C||100||200||300||400 500||550 600||650||700|
|HRC||53||53||53||53 55||53 49||37||32|