FAQ-Is stainless steel non-magnetic?

STAINLESS STEEL 

F A Q

Is stainless steel non-magnetic?

It is commonly stated that “stainless steel is non-magnetic”. This is not strictly true and the real situation is rather more complicated. The degree of magnetic response or magnetic permeability is derived from the microstructure of the steel. A totally non-magnetic material has a relative magnetic permeability of 1. Austenitic structures are totally non-magnetic and so a 100% austenitic stainless steel would have a permeability of 1. In practice this is not achieved. There is always a small amount of ferrite and/or martensite in the steel and so permeability values are always above 1. Typical values for standard austenitic stainless steels can be in the order of 1.05 – 1.1. See Composition effects on the magnetic permeability of austenitic stainless steels

It is possible for the magnetic permeability of austenitic steels to be changed during processing. For example, cold work and welding are liable to increase the amount of martensite and ferrite respectively in the steel. A familiar example is in a stainless steel sink where the flat drainer has little magnetic response whereas the pressed bowl has a higher response due to the formation of martensite particularly in the corners.

In practical terms, austenitic stainless steels are used for “non-magnetic” applications, for example magnetic resonance imaging (MRI). In these cases, it is often necessary to agree a maximum magnetic permeability between customer and supplier. It can be as low as 1.004.

Martensitic, ferritic, duplex and precipitation hardening steels are magnetic.

Do you know what is mosaic?

Mosaic tiles are good products for ground and wall decoration using one of the more decorative building materials. Mosaic has a compact, color range, can be used to spell out a variety of beautiful patterns, wall and ground decoration effects far more than the common wall and floor tiles.

At present, mosaic and ceramic tile on the market, is not necessarily a single, see classification of small series of the mosaic and mosaic specification in common use.

Mosaic on the market a wide range of rich colors, greatly enriched the home construction and decoration material market, brings more color to people's lives. If mosaic according to their material, process can be mosaic detail category: metal mosaic, ceramic mosaic, stone mosaic, glass mosaic, and so on.

 1, Ceramic mosaic

This type of mosaic is the most widely used and most traditional mosaics, small shape, tone, and rather dull, and widely used, are the most common kind of mosaic.

2, stone mosaic

Stone mosaic in General refers to a block of marble mosaics. This type of mosaic appeared in the history of the mosaic of the medium-term, than traditional ceramic mosaic's more diverse, more diverse. Poor Marble Mosaic water resistance, resistance to acid and alkali corrosion is weak.

3, glass mosaic

Glass mosaic is a most colorful mosaics, crystal clear, colorful. Using raw materials of different types of glass, glass mosaics can be roughly divided into the molten glass mosaics, sintering glass mosaic, glass mosaic of Venus in three categories.

4, metal mosaics

Stainless steel ,aluminum and other metal materials made of metal Mosaic Mosaic, color dark, reflective effect, and single color, mostly raw color.

In addition to these four main categories outside of mosaic, this year has also seen a new shell mosaic, mosaic of the class firing from completely natural shell material, natural, non-toxic, no radiation, is a new eco-friendly mosaic tiles.

Mosaic common specifications are 20x20mm, 25x25mm, 30x30mm, thickness between the 4mm-4.3mm in turn.

Contact information:

Email: info@spstainlesssteel.com

Skype: ivysu520

Whatsapp: 008615986114376

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