Soft magnetic stainless steel bar K-M31

Soft magnetic stainless steel bar K-M31

Magnetic core material, which is essential in electromagnetic actuators, is required to have various different properties such as corrosion resistance, magnetic property, electrical resistance, and workability depending on the usage or performance.

Features

Compared with pure iron magnetic materials:
High corrosion-resistance
High electrical resistance
To meet processing methods:
Free-cutting types
Cold forgeable types
Compared to general ferrite stainless steel:
Excellent magnetic properties

Application

Fuel injectors, solenoid valve cores,
ABS sensor cores, magnetometric sensors, semiconductor valve stems,
massflow controller cores

Chemical Composition
K-M31 13Cr-2Si
K-M35FL 13Cr-0.7Si-0.2Al-0.2Pb
K-M38 18Cr-2Si-2Mo
K-M45 20Cr-2Si-2Mo
K-M60 13Cr-0.2Al-1Mo

Standard heat treatment condition
K-M31, K-M35FL, K-M60 950°C×3hr-furnace cooling
K-M38 850°C×3hr-furnace cooling
K-M45 1000°C×3hr-rapid cooling

Soft-magnetic properties, pitting potential

Mechanical properties, hardness