EN1.4507 UNS S32550 | Ferrinox 255 ステンレス鋼

1.4507 Mechanical roperties

1.4507, this stainless steel grade that has been given many aliases – 1.4507, UNS S32550 and A182 F61, dominates the material industry with its excellent performance. It has outstanding resistance to localized corrosion in chloride media while maintaining high strength mechanical properties. When we deeply explore the mechanical properties of 1.4507, we find that its tensile strength is as high as over 760 N/mm², and its yield strength at 0.2% is no less than 550 N/mm². 加えて, its elongation rate reaches an astonishing over 25%, and its hardness HB30 is controlled below 270 HB, which demonstrates its reliability in various application scenarios.

Tensile strength, Rm: 700 – 900 MPa
The yield point, Rp0,2: >500 MPa
伸長, あ:> 25%
Modulus of elasticity, E: 200 GPa
硬度, HB: <270
Thermal capacity, cp: 500 J * kg-1 * K-1
Thermal conductivity, λ: 15 W * m-1 * K-1
Linear expansion coefficient, α: 13.0 * 10-6 K-1
Specific resistance, Ω: 0.8 mkOhm * m

1.4507 chemical composition

The chemical composition behind 1.4507 is indispensable for its excellent performance. Among them, the contents of carbon, silicon and manganese are strictly controlled within a certain range.

C：≤0.04；
Si：≤1.00；
Mn：≤1.50；
Ni：4.50-6.50；
P：≤0.040；
S：≤0.030；
Cr：24.00~27.00
Mo：2.90-3.90；
N：0.10-0.25；
CU：1.50-2.50；
To ensure the stability and durability of the material. The precise ratio of elements such as nickel, chromium, molybdenum, nitrogen, and copper endows 1.4507 with excellent corrosion resistance and mechanical strength.
In order to fully utilize the performance of 1.4507, the heat treatment process is also crucial. After high-temperature treatment at 1040 ° C and rapid cooling in air or water, the performance of 1.4507 is fully released, providing strong protection for applications in various harsh environments. Among various corrosive chemicals, including sulfuric acid, phosphoric acid, and nitric acid, 1.4507 exhibits excellent corrosion resistance. This excellent corrosion resistance makes 1.4507 widely applicable in fields such as chemical, petroleum, and marine engineering. 全体, 1.4507 has become a leader in stainless steel materials due to its excellent resistance to local corrosion in chloride media, high mechanical strength, and outstanding corrosion resistance. It has demonstrated impeccable performance in both mechanical properties and chemical composition.