Precision Alloy 31H4X

No foreign analogues

Intended for the manufacture of vacuum junctions with LENZOS glasses, etc .; TKLR * 1,000,000 in the temperature range from -70 to +400 ºC no more than 9.5−10.5 [1 / ºC]

Classification

Country Section Category
CIS, Russia, Ukraine Precision alloys With given TCLE

Chemical composition

Standard Fe, % Si, % Mg, % Ca, % Mn, % Cr, % Cu, % Ni, % Al, % ET, %
GOST 10994-74 62.975–65.7 < 0.18 < 0.05 < 0.025 0.2–0.4 3.6–4.4 < 0.05 30.5–31.8 < 0.05 < 0.07

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 142 8200 600

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 940 420 15–20

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Tape GOST 10994-74 120–140

Casting and technological parameters

melting point, °C
1450

Limit operating modes

Standard Температура, °C
GOST 10994-74 < 450

Standards

Standard Description
GOST 10994-74

Description of chemical elements

Element Units of measurement Description
ET % Total other items
Fe % Iron
Si % Silicon
Mg % Magnesium
Ca % Calcium
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
Al % Aluminium

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

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

Description of the casting and technological parameters

Parameter Units of measurement Description
melting point °C The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa