Precision Alloy 25NU

No foreign analogues

It is used for the manufacture of parts of devices that require dimensional stability in the range of climatic temperatures; in the range from -60 to +100 ºC

Classification

Country Section Category
CIS, Russia, Ukraine Precision alloys With high electrical resistance

Chemical composition

Standard Fe, % Si, % Mn, % Ni, % Al, % Nb, % ET, %
GOST 10994-74 59.65–63.4 < 0.4 < 0.6 24.5–25.5 8.4–9.6 3.7–4.2 < 0.05

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\rho$$, $$\frac{kg}{m^3}$$
20 145 6.8–7.4 8200

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ d5, % Treatment
Tape GOST 10994-74 <2.0 Transverse raw, cold rolling, thin, Transverse < 950 < 600 5–8

Standards

Standard Description
GOST 10994-74

Description of chemical elements

Element Units of measurement Description
ET % Total other items
Fe % Iron
Si % Silicon
Mn % Manganese
Ni % Nickel
Al % Aluminium
Nb % Niobium

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength