Alloy 33N2X
It is used for the manufacture of structural parts and pipelines operating at low temperatures; TKLR * 1,000,000 in the temperature range from -258 to +20 and from +20 to +100 ºC no more than 1.0−2.0 [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, % |
C, % |
S, % |
|---|
| GOST 10994-74 |
63.075–65.8 |
< 0.18 |
< 0.05 |
< 0.025 |
0.2–0.4 |
1.5–2.3 |
< 0.05 |
32.5–33.8 |
< 0.05 |
< 0.05 |
< 0.02 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$\alpha\cdot 10^{6}$$, $$K^{-1}$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
$$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
Cp, Дж/кг·К |
|---|
| 20 |
9.4 |
8200 |
600 |
460 |
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\sigma_{Y}$$, $$MPa$$ |
d5, % |
Treatment |
|---|
| Tape |
GOST 14086-68 |
100 |
Transverse |
|
700 |
300 |
25–30 |
|
Magnetic properties
| Rolling |
$$H_c$$, $$A/m$$ |
$$\mu_{max}$$, $$MH/m$$ |
$$B_{1000}$$, $$T$$ |
|---|
| Tape |
0.12 |
7000 |
14000 |
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Tape |
GOST 14086-68 |
|
140–160 |
Casting and technological parameters
Limit operating modes
Heat Treatment Modes
| Treatment |
|---|
| Quenching, with first fast and then slow cooling |
Properties
| Property |
|---|
| After heat treatment, the alloy is sensitive to mechanical stresses, which, depending on the value, can lead to irreversible deterioration |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mg |
% |
Magnesium |
| Ca |
% |
Calcium |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| Al |
% |
Aluminium |
| 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) |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
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 magnetic properties
| Parameter |
Units of measurement |
Description |
| $$H_c$$ |
$$A/m$$ |
Magnetic coercivity (not more) |
| $$\mu_{max}$$ |
$$MH/m$$ |
Magnetic permeability (not more) |
| $$B_{1000}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 1000 A/m |
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 |