Alloy 33NKGD

No foreign analogues

It is used for the manufacture of vacuum junctions with glasses P-6, C72−4; TKLR * 1,000,000 in the temperature range from -60 to +400 ºC no more than 7.0−7.8

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Co, % Cu, % Ni, % P, % C, % S, %
GOST 10994-74 60.21–63.6 < 0.2 0.4–0.8 3.2–4.2 0.8–1 32–33.5 < 0.02 < 0.05 < 0.02

Information on suppliers

Physical characteristics

Temperature, °C $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ Cp, Дж/кг·К
20 13–16 60–70 8220 450

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ d5, % Treatment
Tape GOST 10994-74 100 Transverse 400–450 200–240 25–50

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Tape GOST 10994-74 140–170

Limit operating modes

Standard Температура, °C
GOST 10994-74 < 350

Heat Treatment Modes

Treatment
Annealing

Standards

Standard Description
GOST 10994-74

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Co % Cobalt
Cu % Copper
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur

Description of physical characteristics

Parameter Units of measurement Description
Cp Дж/кг·К Specific heat of material
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ 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