H13 belongs to hot work die steel, which is a steel grade formed by adding alloying elements on the basis of carbon steel, which implements the standard GB/T1299-2000. H13 steel is C-Cr-Mo-Si-V steel, which is widely used in the world. At the same time, many scholars from various countries have conducted extensive research on it and are exploring the improvement of chemical composition. The strength Rm of H13 steel is described in the literature as 1503.1MPa (at 46HRC) and 1937.5MPa (at 51HRC). In addition, the interaction effects of alloying elements should be considered. For example, when the steel contains chromium, molybdenum and vanadium, when Cr>3%, Cr can prevent the formation of V4C3 and delay the coherent precipitation of Mo2C. V4C3 and Mo2C improve the steel The strengthening phase of high temperature strength and tempering resistance, this interaction improves the resistance to heat deformation of the steel.
Hardness: Annealing, 245～205HB, quenching, ≥50HRC
C Si Mn Cr Mo V P S
0.32~0.45 0.80~1.20 0.20~0.50 4.75~5.50 1.10~1.75 0.80~1.20 ≤0.030 ≤0.03
Product use: die-casting mold, plastic mold, heat-resistant mold
Treatment process: electroslag remelting
Theoretical weight table (unit: kg/m, mm): 7.85
Characteristics of H13 steel:
Electroslag remelting steel, the steel has high hardenability and thermal crack resistance, the steel contains a higher content of carbon and vanadium,
Good wear resistance, relatively weakened toughness, good heat resistance, and good performance at higher temperatures
Strength and hardness, high wear resistance and toughness, excellent comprehensive mechanical properties and high tempering resistance stability.
Uses of H13 steel: used to manufacture forging dies with high impact load, hot extrusion dies, precision forging dies. Die-casting dies for aluminum, copper and their alloys.