Is 1.4122 stainless steel magnetic?

1.4122 stainless steel is a martensitic precipitation hardening stainless steel, also widely known as X2CrNi17-7, which belongs to the German standard stainless steel and is available in the form of stainless steel plates, round bars, pipes and other materials.

1.4122 stainless steel is a medium carbon stainless steel with high corrosion resistance and good mechanical properties, especially suitable for making various mechanical parts. This article will introduce its chemical composition, physical properties, mechanical properties, application fields and other aspects in detail.

The domestic and international standard grades corresponding to 1.4122 are: UNS S42000; EN 1.4122; JIS SUS420J1. 1.4122 has good high temperature creep resistance and is suitable for parts that work in high temperature and high stress environments for a long time, such as aircraft engine parts.

1.4122 stainless steel chemical composition

According to EN10088-3 standard, the chemical composition of 1.4122 is as follows:
C: 0.33%~0.45%
Si: ≤1.00%
Mn: ≤1.50%
P: ≤0.040%
S: ≤0.030%
Cr: 15.50%~17.50%
Mo: 0.80%~1.30%
Ni: ≤1.50%

1.4122 stainless steel physical properties

1. Density: 7.70 g/cm³
2. Thermal expansion coefficient: 10.5 x 10^-6/K
3. Thermal conductivity: 25 W/m·K
4. Resistivity: 0.75 x 10^-6Ω·m
5. Magnetism: easy magnetization

1.4122 stainless steel mechanical properties

1. Yield strength: ≥700 MPa
2. Tensile strength: ≥850 MPa
3. Elongation: ≥10%
4. Impact toughness: ≥18 J/cm²
5. Longitudinal shrinkage: ≥40%

1.4122 stainless steel application areas

1. Manufacture of bearings, gears, blades, scrapers and scraper blades, etc.
2. Manufacture of molds, mold substrates and templates, etc.
3. Manufacture of brake systems, such as brake discs and brake calipers.
4. Manufacture of heat exchangers, coolers and other heat exchange equipment.