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Why air coil with soft iron core inductance is greater then air coil laminated steel core?
Soft iron has a greater permeability than steel. BTW, the only reason for laminations is to reduce eddy currents in the core. It has no effect on permeability or inductance.
Is zinc plated galvanized steel magnetic?
Yes, the mild steel under the plating is magnetic. The coating only prevents corrosion.
Is hot-rolled steel magnetic?
Yes, hot-rolled steel is magnetic. A few types of steel have limited magnetic properties, but hot rolling is a process by which steel is prepared in a shape for marketing. The hot rolling does not affect the ability of the steel to be attracted to a magnet.
What is 606m36t steel grade?
This is a steel with magnetic properties and is used for low temperatures.
Is 340 stainless magnetic?
Steel is essentially native iron with carbon or other elements added, so all steels are potentially magnetic.Many electrical transformers use a version of mild steel, called "transformer steel".Stalloy (a silicon steel alloy) is one example.High-performance audio transformers use more complex alloys such as mu-metal (nickel-iron-copper-molybdenum).Stainless steel has high concentrations of nickel/chromium, and these high concentrations make most stainless steel alloys non-magnetic.Magnetic stainless steel has weak magnetic properties, so it is not a practical magnetic material.Stainless steel is categorized by AISI Type. Some are magnetic. Generally any steel with or at or over 11% Chromium is a stainless steel. The 200 and 300 series are not magnetic, however the 400 series is magnetic. The 400 series has enough Iron and Carbon to allow it to be heat treated to harden it. Most stainless steel knife blades are hardened 421 stainless steel and are magnetic.Some stainless steel is attracted by magnets, but most is not. It depends on the composition of the alloy and how it has been processed. Stainless steel is an alloy of steel, chromium and sometimes nickel. The metal has a crystalline structure that is not easily penetrated by magnetic flux (it has a low magnetic permeability). Some forms of stainless steel, particularly those without nickel, are attracted by magnets.However, it is the structure, not just the composition, of the steel that affects whether it will be attracted by a magnet. This can be observed in some stainless steel sinks: a magnet will not be attracted to the bowl of the sink except in the corners, where the steel has been stretched.Maybe.Some kinds of stainless steel are "nonmagnetic". Exactly what that means varies depending on the exact composition of the steel and its history (cold working or welding tend to make individual pieces "more magnetic").About all that can be said for certain is that most types of "stainless" steel alloys are less magnetic than iron is.Yes, since stainless steel is a majority iron with some chromium (10-30 wt%) and a smaller amount of other elements such as carbon (less than 0.20%), it will still be ferromagnetic and be attracted to a magnet.
