10PP

parts operating at temperatures up to 450 ° C, which should meet the requirements of high ductility, as well as plugs, lugs, washers, screws and other items after HTO, which are requirements of high surface hardness and wear resistance at low core strength.

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 98.385–99.68 < 0.07 0.25–0.5 < 0.15 < 0.3 < 0.3 < 0.08 < 0.035 0.07–0.14 < 0.04

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 186 7856
100 12.4 58 7832 0.466 0.19
200 13.2 54 7800 0.479 0.263
300 13.9 49 7765 0.352
400 14.5 45 7730 0.512 0.458
500 14.9 40 7692 0.584
600 15.1 36 7653 0.567 0.734
700 15.3 32 7613 0.905
800 12.1 29 7582 1.081
900 14.8 27 7594 1.13
1000 12.6

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % Treatment
Sheet termoobrabotki. GOST 4041-71 4–14 270–410 32
Trumpet GOST 10705-80 314 196 25
The steel is calibrated. GOST 10702-78 372 8 55
Band GOST 1577-93 6–60 310 185 33 55 Normalization

Brinell hardness number

Rolling Standard Classifiers Value, HBW
The steel is calibrated. GOST 10702-78 cold-work 1790
Sheet termoobrabotki. GOST 4041-71 1140
Sheet annealed. GOST 1577-93 fat 1370

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
732 870 854 680

Analogues

USA Germany
A621 1.0334 (UStW23)
1.0305 (P235G1TH)
1.0315 (P235G2TH)
1.0330 (DC01)
1.0339 (C10WSi)

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

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