How is the hardness of stainless steel after heat treatment
How is the hardness of stainless steel after heat treatment
1. Hardness of stainless steel after quenching heat treatment
Quenching is a common heat treatment method that transforms austenite in stainless steel into martensite by rapid cooling, thereby improving its hardness and strength. Generally speaking, the hardness of stainless steel after quenching can reach about HRC50-60, but the specific hardness value is also related to factors such as the material, formula, quenching temperature and time of stainless steel.
2. Hardness of stainless steel after tempering heat treatment
Tempering is a common heat treatment method, usually carried out after quenching. By heating and keeping warm for a period of time, the quenched stainless steel can restore a certain degree of toughness and plasticity, while reducing its brittleness and hardness. The hardness of stainless steel after tempering is generally lower than that of quenching treatment, mainly depending on the tempering temperature and time, usually between HRC30-40.
3. Hardness of stainless steel after annealing heat treatment
Annealing is a common heat treatment method, usually used to reduce the hardness and strength of stainless steel and improve its toughness and plasticity. The hardness of stainless steel after annealing is generally low, depending on the annealing temperature and time, usually between HRC20-30
In general, heat treatment of stainless steel can significantly improve its hardness and strength. The specific hardness value depends on the heat treatment method and conditions. In practical applications, it is necessary to select appropriate heat treatment methods and conditions according to different materials and requirements.
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