1.4521 is a stainless steel grade. Stainless steels are alloyed steels containing at least 10.5% chromium, which imparts corrosion resistance. The 1.4521 grade is also known by other designations, including UNS S44400 and EN 1.4521. It belongs to the ferritic stainless steel group, which is characterized by a high chromium content and a low carbon content.
Some key properties and characteristics of 1.4521 stainless steel include:
Corrosion Resistance: Like all stainless steels, 1.4521 offers good resistance to corrosion, especially in environments where there is exposure to moisture, chemicals, and other corrosive substances.
Heat Resistance: Ferritic stainless steels like 1.4521 are generally less heat-resistant compared to austenitic stainless steels. They may lose some of their mechanical properties when exposed to high temperatures for extended periods.
Weldability: This grade is generally considered weldable, but it’s essential to use appropriate welding techniques and filler materials to prevent issues like sensitization, which can lead to corrosion problems.
Applications: 1.4521 stainless steel is often used in applications where corrosion resistance is required, such as in automotive exhaust systems, architectural components, kitchen equipment, and certain industrial applications.
Magnetic Properties: Ferritic stainless steels are typically magnetic, which can be advantageous in applications where magnetic properties are needed.
|Grade||C%||Si ≤ %||Mn ≤ %||P ≤ %||S ≤ %||Cr%||Mo%||N%||Ti≤ %|
|444||≤ 0.025||1.00||1.00||0.04||0.015||17.0-20.0||1.80-2.50||≤ 0.030||4x(C+N)+0.15|
|Hardness HB 30 ≤ HB||0.2% Yield strength Rp ≥ N/mm²||Tensile strength Rm N/mm²||Elongation A5 ≥ %||Modulus of elasticity kN/mm²|