Magnetic Properties of Stainless Steel
The magnetic attraction of ferromagnetic ferritic martensitic and duplex stainless steels is compared to that of the low magnetic permeability austenitic types.
Magnetic properties of austenitic stainless steels
Austenitic stainless steels are usually described as 'non-magnetic' since their response to a hand-held magnet is negligible. However, ferritic, martensitic, duplex and most precipitation hardening stainless steels are usually classified as 'magnetic' since they exhibit a strong response, (or pull), to a hand-held magnet.
Magnetic properties of ferritic, martensitic and duplex stainless steels
Ferritic, martensitic, duplex, (and most precipitation hardening), stainless steels are usually classified as 'magnetic' since they exhibit a strong response, (or pull), to a hand-held magnet. By comparison, austenitic stainless steels are often described as 'non-magnetic' since their response to a hand-held magnet is negligible.
Composition effects on the magnetic permeability of austenitic stainless steels
Austenitic stainless steels are generally non-magnetic with magnetic permeabilities of around 1.0. Permeabilities above 1.0 are associated with the amount of either ferrite or martensite phases present in the 'austenitic' steel and so depend on:
Category: Magnetic & Electrical Properties
Ambient temperature physical properties of stainless steels to BS EN 10088-1
Ambient temperature physical properties, including density, modulus of elasticity, (Young's modulus), coefficient of thermal expansion, thermal conductivity, specific heat, (heat content or heat capacity), and electrical resistivity for a range of ferritic, martensitic, austenitic and duplex stainless steel types are tabulated. Some explanation of the units used for these properties is given.
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