Soft iron

• Sheets, Cuts • Thickness 1 mm – 3 mm • Length< 3000 mm • Width< 750 mm • Sheets may be purchased complete or cut according to your requirements. • Rods, Bars • Diameter 8 mm – 180 mm • Length< 4000 mm (smaller standard sizes are available) • Further possible material treatments We cut, trim, slit, bend, stamp, weld and anneal – simple forms as well as more complicated geometries. • Thermal annealing Please note, that with very few exceptions soft magnetic alloys, and in particular finished parts, need to be treated with a thermal annealing to obtain the desired magnetic properties. Properties of material For applications that presuppose high saturation magnetisation but require defined magnetic properties, using a conventional iron substance or steel is not recommendable. Only painstaking processing and annealing can achieve reliable and reproducible magnetic material properties with pure iron. Soft iron is employed principally in the area of magnetic systems, e. g. in pole shoes, yokes, as a magnetic anchoring mass and in the form of flux conductor plates. Soft iron shielding also makes it possible to control strong magnetic fields. Its high Curie temperature permits applications that would not be realisable with MUMETALL® or PERMENORM® 5000 H2, but coercive field strength and dynamic losses are distinctly higher than with the latter.

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A magnetometer is a type of sensor that measures the strength and direction of the local magnetic field. The magnetic field measured will be a combination of both the earth’s magnetic field and any magnetic field created by nearby objects. The magnetic field is measured in the sensor reference frame. Magnetic measurements will be subjected to distortion. These distortions are considered to fall in one of two categories; hard or soft iron. Hard iron distortions are created by objects that produce a magnetic field. A speaker or piece of magnetized iron for example will cause a hard iron distortion. If the piece of magnetic material is physically attached to the same reference frame as the sensor, then this type of hard iron distortion will cause a permanent bias in the sensor output. Soft iron distortions are considered deflections or alterations in the existing magnetic field. These distortions will stretch or distort the magnetic field depending upon which direction the field acts relative to the sensor. This type of distortion is commonly caused by metals such as nickel and iron. In most cases hard iron distortions will have a much larger contribution to the total uncorrected error than soft iron. Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Ada...

Ferromagnetic materials are ubiquitous in electronic components and electrical machinery. In EM modeling, we may be interested in the broader application or focus on a certain material characteristic (e.g., the mechanical resistance of structural steel) that happens to be magnetic. In both cases, ferromagnetic parts influence the magnetic field in their surroundings, and identifying exactly how this happens could be crucial to the proper functioning of a device or system. Classification of Magnetic Materials To understand the huge variety of magnetic behaviors in different materials, classification is useful. The easiest classification system for magnetic materials is as follows: • Weakly magnetic materials • Slightly alter externally applied magnetic fields (i.e., paramagnetic and diamagnetic materials) • Soft irons • Efficiently concentrate an external magnetic flux, but don’t have an “intrinsic” magnetization (so if they are placed in a region without magnetic fields, it will remain without fields) • Hard irons, which will be referred to from now on as permanent magnets • Produce magnetic flux even in the absence of an externally applied field Materials in categories 2 and 3 are referred to as ferromagnetic. However, this classification is not simple, because the separation between soft irons and permanent magnets might not be that sharp and certain behaviors could be intermediate between the two categories. It is possible for a material to have some small magnetization...

Product Description Soft Magnetic Iron Rod is 5-mm in diameter and 200 mm long (about 9 inches). It may be used in experiments related to electromagnets, transformers, solenoids, and inductors (coil, choke, or reactor). Soft iron = Low coercivity iron = Low resistance to being demagnetized For uses involving changing magnetic flux in electromagnets, electric motors, generators and transformers. Dimensions: (D x L): 5 mm x 200 mm. Bulk Discount: Quantities of 10 and more are subject to the bulk order discounts.