ESR only represents the smelting process. Therefore, the chemical composition of H13 ESR is exactly the same as that of H13 steel. After undergoing electroslag remelting, H13 ESR exhibits a further reduction in harmful impurities and non-metallic inclusions compared to H13 steel, resulting in a more uniform and denser composition and microstructure. Therefore, H13 [...]
Both H11 and H13 steels are 5% Cr series hot work steels according to American standards. H11 has a vanadium (V) content of 0.3-0.6%, while H13 has 0.8-1.2%, making H13 an upgraded version of H11. The core difference between the two is the vanadium (V) content. Due to the higher V content, H13 exhibits [...]
H13 steel ultrafine processing refers to a technique that significantly reduces the size of the original austenite grains and the final carbide structure to a level far below that of conventional heat treatment through special heat treatment processes or thermomechanical processing methods. The core objective of this process is to give H13 steel superior [...]
Normalizing is not a standard pretreatment process for H13 steel. This is because normalizing significantly increases the hardness and internal stress, making it unsuitable for subsequent machining and final heat treatment. For H13 steel with a normal microstructure, spheroidizing annealing should be performed directly.
H13 is called "hot work steel" not because it needs to be heated during production, but because it is used as a mold material in hot working processes such as die casting, hot forging, and hot extrusion. Furthermore, H13 is called a "hot work steel" primarily because it possesses two core capabilities: Red hardness: [...]
H13 ESR refers to H13 steel that has undergone electroslag remelting.Compared to H13 steel smelted in an electric arc furnace（EAF), the main advantages of H13 ESR are as follows: Higher purity: Very few internal impurities. Better isotropy: Smaller differences in properties between the longitudinal and transverse directions. Greater toughness: Better impact and crack resistance [...]