Chemical Composition of Low Chromium Ferritic Stainless Steel 0Cr13Al (AISI405)

Introduction

0Cr13Al (AISI 405) stainless steel is a ferritic, non-magnetic, stainless steel that has excellent weldability and formability. It has a low carbon content, good mechanical and corrosion resistance, and excellent strength. It is used in applications that require high strength, excellent corrosion resistance, and good weldability, such as food processing and medical equipment.

Chemical Composition

0Cr13Al (AISI 405) stainless steel is an alloy composed of several elements. It contains 0.10% max carbon; 13.00% to 15.00% chromium; 0.50% max silicon; 0.50% max nickel; 0.60% max aluminum; 0.10% max phosphorus; 1.00% max manganese; 0.040% max sulfur; and trace amounts of other elements.

Mechanical Properties

The mechanical properties of 0Cr13Al (AISI 405) stainless steel make it ideal for many types of applications. It is capable of being deep drawn, has good transverse properties, and has a good combination of strength and hardness. It has an ultimate tensile strength of 690 Mpa and an ultimate yield strength of 280 Mpa. It has low ductility, but can still be easily cold-formed when annealed.

Corrosion Resistance

0Cr13Al (AISI 405) stainless steel has excellent corrosion resistance, especially in chloride containing environments. It is a ferritic alloy, so it is more resistant to stress corrosion cracking than other austenitic grades. It also has good resistance to oxidation, which makes it suitable for use in high temperature environments. Its ability to resist corrosion makes it a popular choice for applications that require protection from corrosion or corrosion-induced stress.

Weldability

0Cr13Al (AISI 405) stainless steel has excellent weldability. It can be welded using arc and oxygen welding techniques, as well as resistance welding and laser welding. It does require pre- and post-weld heat treatments, however, in order to restore the mechanical properties and to help prevent intercrystalline corrosion.

Conclusion

0Cr13Al (AISI 405) stainless steel is a ferritic, non-magnetic, stainless steel with excellent weldability and formability. It has a low carbon content, good mechanical and corrosion resistance, and excellent strength. Its combination of properties make it a popular choice for many applications, especially food processing and medical equipment, that require high levels of strength, corrosion resistance, and weldability.

AISI 405 stainless steel is a variant of the standard 0Cr13Al stainless steel, which belongs to the ferritic family of stainless steels. This type of steel is known for its good corrosion resistance, machinability and formability.

AISI 405 is comprised mostly of iron, with a carbon content of only 0.08%. The steel also contains elements such as chromium and aluminium, with the former making up around 11.5 - 13.5% of the total composition and the latter 0.2 - 0.8%. In addition, the steel also contains smaller amounts of manganese (1%), phosphorus (0.06%) and sulfur (0.03%).

The mechanical properties of AISI 405 stainless steel can vary significantly depending on heat treatment. When the material is annealed, it typically has a tensile strength of 375-485 MPa and a yield strength of 190-275 MPa. The material can also withstand temperatures up to 760°C (1400°F). The thermal expansion of AISI 405 is similar to that of other standard stainless steels, with a coefficient of thermal expansion of 12.1 x 10-6 per kelvin in the temperature range of 20-100°C (68-212°F).

Overall, AISI 405 is a durable and corrosion-resistant stainless steel. It is easy to form and machine and is ideal for many applications in industries such as food processing, chemical processing, and petroleum refining. It is also commonly used in household and kitchen items, such as flatware and cookware, as well as in aerospace components.