EN28 is a high-strength nickel-chromium-molybdenum alloy steel known for its excellent combination of toughness, wear resistance, and high tensile strength.
Details Regarding EN28 Alloy steel Round Bars:
Chemical Composition:
Mechanical Properties:
Physical Properties:
Heat Treatment:
EN28 alloy steel typically undergoes various heat treatment processes to achieve desired mechanical properties:
Annealing: Heating the material to around 850-900°C and then slowly cooling it in the furnace to relieve internal stresses and improve machinability.
Normalizing: Heating the material to around 880-920°C, followed by air cooling to room temperature. This process refines the grain structure and enhances the mechanical properties.
Hardening: Heating the material to a temperature range of 850-900°C and then quenching it in oil or water to achieve high hardness and strength.
Tempering: Reheating the hardened material to a temperature range of 540-680°C and holding it for a specific time to reduce internal stresses and improve toughness without significantly sacrificing hardness.