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The material labeled 45N refers to the magnetically soft type of precision alloys, and therefore has a significant magnetic permeability and induction of technical saturation. Like all such raw materials, this alloy is able to fully saturate with magnetic energy even under the influence of a small magnetic field. A characteristic feature of such materials is the presence in their composition of cobalt and nickel, because these chemical elements determine the main operating characteristics of raw materials of soft magnetic type.


The scope and principles of using products from precision alloys depend fully on their individual characteristics. Such raw materials are very important in the production of electrical equipment, power engineering and the manufacture of magnetic cores of various transformer devices. Also, without such semi-finished products, the production of relay equipment and chokes is not complete. It is simply irreplaceable alloy 45N and its similar materials in the production of television equipment, measuring instruments and a variety of computing equipment.


The production of soft magnetic materials is characterized by the complexity and laboriousness of the technological process, which requires the use of special metallurgical furnaces and complete dedication from the staff. After giving the ingot the desired shape in the furnace, it is processed by rolling on rolling mills of various types. The finished product has a set of unique performance characteristics and high surface quality.


Chemical composition as a percentage
silicon carbon iron manganese phosphorus sulfur nickel copper
0.15−0.3 Up to 0,03 51.83−54.25 0.6−1.1 Up to 0.02 Up to 0.02 45−46.5 Up to 0.02
physical characteristics
Name Units Symbol The numerical value
Elastic modulus MPa Ex10 -5 2
Measurement temperature ° C T 20
The index of linear temperature expansion (at t = 100 ° C) 1 / deg Ах10 6 10.7
Density Kg / m 3 R 8200
Electrical resistance (specific) Omxm Rx10 9 540
Mechanical properties (at 20 ° C)
Name of the characteristic The numerical value of the parameter for products according to GOST 10160−75
Thinning tape
Short-term tensile strength, MPa (ss) 740
Yield strength, MPa (sT) 735
Relative elongation at break,% (d5) 3
Relative narrowing,% (y) 15

Weldability indexes

The alloy has limitations on weldability The welding process requires some preliminary preparation (warming the contacting surfaces to one hundred and one hundred and twenty degrees and subsequent heat treatment of the seam zone)
The alloy has no weld constraints No additional operations are required
Hard to weld material It is necessary to warm the contacting surfaces to two hundred or three hundred degrees, the subsequent annealing and heat treatment after the end of the welding process


High-quality manufacturing with constant control of all the requirements of the technological process and compliance of 45N semi-finished products with all requirements of regulatory documentation, as well as low cost of products determines the very high popularity of such material for modern production. Our company represents the entire range of such products and provides a flexible approach to each customer, regardless of the cost of his order.