Cold and hot workability of low chromium ferritic stainless steel 0Cr13Al (AISI405), heat treatment

Processing and Heat Treatment of 0Cr13Al (AISI405) Low Chromium Ferritic Stainless Steel

0Cr13Al (AISI405) low chromium ferritic stainless steel is a stainless steel characterized by low chromium content, high nickel content and high electric conductivity. It has excellent corrosion resistance, oxidation resistance and thermal processing properties. It can also be used in petroleum, chemical, food, electric power and other industries. For its excellent performance, 0Cr13Al (AISI405) low chromium ferritic stainless steel is favored by more and more people.

From the point of view of cold processing, 0Cr13Al (AISI405) low chromium ferritic stainless steel has a good cold workability, especially good rolling and pressing plasticity, cold bending performance and welding performance. The formability is good, so the structure provides good cold deformation. However, because the cold work hardening of 0Cr13Al (AISI405) low chromium ferritic stainless steel is stronger, measures such as preheating and inter-pass aging should be taken before cold processing to reduce the hardening of steel and improve its machinability.

From the aspect of heat treatment, 0Cr13Al (AISI405) low chromium ferritic stainless steel can be heat treated in an oil or air medium. The steel can be heated to a temperature below 980 ℃, and then cooled to room temperature to obtain a martensite + carbide structure. Through such heat treatment, the strength and hardness of 0Cr13Al (AISI405) low chromium ferritic stainless steel will be greatly improved. The oil quenching and aging heat treatment can also be taken to further improve the performance of the steel.

0Cr13Al (AISI405) low chromium ferritic stainless steel shows excellent cold and hot processing performance. By understanding the relevant parameters and processing principles, high-quality 0Cr13Al (AISI405) low chromium ferritic stainless steel components can be produced. In addition, for the companys production processes and component performance requirements, special parameters and heat treatment techniques can be designed to obtain more ideal mechanical properties.

Stainless steel 0Cr13Al (AISI 405) is a low chromium ferritic stainless steel. This type of stainless steel combines good formability, weldability, and good oxidation and corrosion resistance. It is popular for use in the automotive and food-processing industries, and has good machinability and cold-forming properties when annealed or normalized.

This grade of stainless steel is relatively easy to cut and form both cold and hot. It can be cold-formed by hand or press-formed and produces good spring-back. Generally, good tool life can be expected. In comparison to austenitic stainless steel types, 0Cr13Al (AISI 405) has lower tensile and yield strength when compared to austenitic stainless steel, and approximately half the ductility.

When 0Cr13Al (AISI 405) is heated, it has good toughness and remains work-hardenable. After hot-working, it should be annealed to improve toughness. Its resistance to corrosion is corrosion resistance is increased in atmospheres containing chlorides or sulfur compounds.

Annealing becomes necessary after hot working if the part is to remain ductile. An older, normalized steel should also be annealed in order to develop the full desired mechanical properties. Stress-relief annealing should follow hardening and subsequent operations to normalize or reduce internal stress. Fully annealing of 0Cr13Al (AISI 405) is performed at temperatures of 1325-1450°F (720-790°C). for annealing.

0Cr13Al (AISI 405) might be either hardened or softened depending on the desired tensile strength and yield strength requirements of the steel. Harden the steel by heating it to a temperature of 1040-1350°C (1900-2450°F), holding it at the temperature for a few minutes and then quenching in oil. Softening can be done by annealing or normalizing at temperatures of 845-915°C (1550-1680°F).