α⋅106
K−1
ϰ
Wm⋅K
ρ
kgm3
R⋅10−6
Ω⋅m
σU
MPa
ϵL

U10

Steel is not used for welded structures, not prone to temper embrittlement. Substitute Y11, Y12. The temperature of the critical points of the material V10: Ac1 = 730, Ac3 (Acm) = 800, Ar1 = 700, Mn = 210. Flock sensitivity: not sensitive. Hardness after annealing U10 (GOST 1435−99): HB 10 -1 = 197 MPa.

tool, working in conditions that do not cause heating of the cutting edge: Hand taps, rasps, needle files, saws for woodworking, dies for cold stamping, smooth gauges, axes.

Classification

Country Section Category
CIS, Russia, Ukraine Tool steel Carbon Tool Steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, %
GOST 1435-99 97.492–98.71 0.17–0.33 0.17–0.33 < 0.2 < 0.25 < 0.25 < 0.03 0.95–1.09 < 0.028

Information on suppliers

Physical characteristics

Temperature, °C \alpha\cdot 10^{6}α⋅106, K^{-1}K−1 \varkappaϰ, \frac{W}{m\cdot K}Wm⋅K \rhoρ, \frac{kg}{m^3}kgm3 R\cdot 10^{-6}R⋅10−6, \Omega\cdot mΩ⋅m
20 40 7810 0.42
100 11.5 44
200 11.9
300 12.5 41
400 13
500 13.4
600 13.9 38
700 14.3
800 13.9
900 15.4 34
1000 13.3

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \epsilon_LϵL, % Treatment
Tape < 4 cold rolling 750 10 delivery condition

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 1435-99 annealing 197

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Not applicable for welded structures not sensitive not inclined

Critical point temperatures

Ac1, K Ac3(Acm), K Ar1, K Mn, K
730 800 700 210

Analogues

USA Germany Japan France United Kingdom European Union Italy Spain China Sweden Bulgaria Hungary Poland Romania Czech Republic Austria
W1-9 1.1645 (C105W2) SK3 C105E2U 1645 CT105 C100KU C102 T10 1880 U10 S101 N10 OSC10 19192 BOHLERK990

Standards

Standard Description
GOST 1435-99

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
\alpha\cdot 10^{6}α⋅106 K^{-1}K−1 Coefficient of thermal (linear) expansion (range 20°C–T)
\varkappaϰ \frac{W}{m\cdot K}Wm⋅K Coefficient of thermal conductivity (the heat capacity of the material)
\rhoρ \frac{kg}{m^3}kgm3 The density of the material
R\cdot 10^{-6}R⋅10−6 \Omega\cdot mΩ⋅m Electrical resistivity

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength
\epsilon_LϵL % Elongation at break (longitudinal)

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
Ar1 K
Mn K