10

stamping, forging, high pressure boiler pipes and other items with a very long life at temperatures up to 350 degrees.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Carbonaceous quality structural steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % As, % P, % C, % S, %
GOST 1050-88 97.935–99.41 0.17–0.37 0.35–0.65 < 0.15 < 0.3 < 0.3 < 0.08 < 0.035 0.07–0.14 < 0.04

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 210 7856 0.14
100 203 12.4 57 7832 0.494 0.19
200 199 13.2 53 7800 0.532 0.263
300 190 13.9 49.6 7765 0.565 0.352
400 182 14.5 45 7730 0.611 0.458
500 172 14.85 39.9 7692 0.682 0.584
600 160 15.1 35.7 7653 0.77 0.734
700 15.2 32 7613 0.857 0.905
800 12.05 29 7582 0.875 1.081
900 14.08 27 7594 0.795 1.13
1000 12.6 0.666
1100 14.4 0.668

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ Treatment
Sheet 4–14 heat-treated 290–420 32
Trumpet GOST 550-75 hot rolling 353 216 25 50 780
Trumpet 353 216 24
Trumpet 314 196 25
Metal rolling GOST 1050-88 < 80 330 205 31 55 Normalization
Metal rolling GOST 1050-88 cold-work 410 8 50
Metal rolling GOST 1050-88 annealing 290 26 55
Metal rolling GOST 10702-78 calibrated, cold-work 390 8 50

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 1050-88 calibrated, cold-work 1870
Alloy GOST 1050-88 hot rolling 1430
Sheet heat-treated 0–0
Trumpet 0–0
Trumpet GOST 550-75 hot rolling 0–0
Round GOST 10702-78 hot rolling 0–0

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
no limits not sensitive not inclined

Critical point temperatures

Ac1, K Ac3(Acm), K Ar3(Arcm), K Ar1, K
724 876 850 682

Analogues

Standards

Standard Description
GOST 1050-88

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur

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)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material
$$c\cdot 10^{-3}$$ $$\frac{J}{kg\cdot K}$$ The specific heat of the material (range 20°C–T)
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\epsilon_L$$ % Elongation at break (longitudinal)
$$\psi$$ % Reduction in cross section on fracture
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Ar3(Arcm) K
Ar1 K