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Ribbon, circle, wire 81NMA

Ribbon, circle, wire 81NMA

Are you interested in a ribbon, a circle, a wire from the alloy 81NMA from the supplier — the company AvecGlob? Here you will find the necessary information on this topic

Buy at affordable prices from the manufacturer of various types of rolled products — tape, circle, wire — made of precision magnetic-soft alloy grade 81NMA offers the company AvekGlob. The supplier guarantees the timely delivery of products to any address specified by the consumer.

Composition and application

Precision magnetic-soft alloy based on nickel, doped with titanium and molybdenum, grade 81NMA is designed for use in weak permanent and variable magnetic fields with reduced sensitivity to mechanical influences and increased strength. The alloy has the highest value of magnetic permeability, and, depending on the final heat treatment, can increase its mechanical strength by almost half.

Typical applications of this alloy are the cores of magnetic heads, small-sized transformers, chokes, relays, flaw detectors, magnetic shields, ferroprods, which are used in highly sensitive electronic equipment.

The chemical composition of the alloy that meets the technical requirements of GOST 10994−74 is given in the table (numerical data — in percent, nickel — the rest):

Fe C Si Mn S P Mo Ti
9.32… 12.3 Not more than 0.01 Not more than 0.1 Not more than 0.35 Not more than 0.01 Not more than 0.01 4.7… 5.2 2.5… 3.3

To buy a tape, a circle or a wire made of a precision magnetically soft alloy of the brand 81НМА, AvecGlob Company offers. The supplier provides a guaranteed shipment of products to any point set by the customer.


Basic physical characteristics of the alloy:

Density, kg / m 3 — 8700;

The coefficient of thermal expansion in the temperature range 20… 100 0 С, μm / deg — 11,8;

Specific electrical resistance, Ohm — 8,010 11 ;

Modulus of elasticity, GPa — 21o.

Basic mechanical characteristics of the alloy:

The limit of the time resistance, MPa — 640… 1270 (lower values — for the non-worked metal);

Yield strength, MPa — 245… 1225 (lower values — for non-worked metal);

Relative elongation at expansion,% — 2… 50 (lower values — for cold-worked metal);

Hardness according to Brinell, HB, no more than 260.

Technological features: as the thickness of the tape decreases, the magnetic characteristics of the alloy decrease.

Company Avecglob sells at a reasonable price from the manufacturer tape, circle or wire, which are made of nickel magnetically soft alloy grade 81NMA. The supplier ensures the immediate delivery of products to any point agreed by the customer.