AMS Resource, Inc. - Alloy, Metal & Steel Supplier

H-11, H-13 Hot Work Tool Steel

Description

H-11 hot work tool steel is a 5% chromium hot work steel that is characterized by excellent impact toughness. It contains less vanadium than the widely-used H13 hot work tool steel. This provides for the higher toughness, with some reduction in wear resistance and temper resistance. H11 hot work tool steel is a deep-hardening, air-hardening steel that exhibits minimal size change during heat treatment. It has good resistance to thermal fatigue cracking (heat checking) and excellent resistance to gross cracking and thermal shock when water cooled in service. H11 hot work tool steel is recommended for hot tooling applications where maximum resistance to cracking is required.

H-13 High hardenability, excellent wear resistance and hot toughness. H-13 has good thermal shock resistance and will tolerate some water cooling in service. Nitriding will improve hardness, but can diminish shock resistance if hardened layer is too thick. Electroslag Remelted (ESR) H-13 has greater homogeneity and an exceptionally fine structure, resulting in improved machinability, polishability and high temperature tensile strength.

Applications

H-11 hot punches, die casting dies, forging dies, hot shear blades, hot gripper dies, and extrusion tooling.

H-13hot work applications: pressure die casting tools, extrusion tools, forging dies, hot shear blades, stamping dies, plastic molds. ESR H13 is great for aluminum die-casting tools and plastic mold tools requiring a very high polish.

Specifications

UNS# T20811, T20813, T90813
6408A (H-13) STEEL, HOT WORK TOOL, BARS & FORGINGS
6437E (H-11) STEEL SHEET, STRIP & PLATE
6485G (H-11) STEEL BARS AND FORGINGS
6487H STEEL, BARS & FORGINGS
6488F STEEL, BARS & FORGINGS
A-597 (H-13) CAST TOOL STEEL
A-681 TOOL STEEL ALLOYS
J437 SELECTION & HEAT TREATMENT OF TOOL & DIE STEELS
J438 TOOL & DIE STEELS
J467 SPECIAL PURPOSE ALLOYS ("SUPERALLOYS")

Available Forms

  • Bar
  • Centrifugal Castings
  • Forge
  • Plate
  • Rectangle Bar
  • Square Bar