Structural high alloy steel 15X25N40M2VTL

No foreign analogues

Castings of this steel are used in the manufacture of pipeline components for pumping oil and gas environments at high temperatures

Classification

Country Section Category
CIS, Russia, Ukraine Heat resistant steels and alloys Heat resistant high alloy steel

Chemical composition

Standard Fe, % Si, % B, % Mn, % Cr, % Ti, % Cu, % Ni, % V, % Zr, % Al, % C, % Mo, % W, %
TU 4112-161-00220302-2011 40–42 1.195–1.95 0.0005–0.01 0.05–1.55 24–27 0.2–0.6 < 0.2 38–41 0.0005–0.1 0.0005–0.05 0.0005–0.1 0.1–0.25 1–3.1 0.2–0.8

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}, MPa \rho, \frac{kg}{m^3}
20 204 8100

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{Y}, MPa d5, % Treatment
Trumpet TU 4112-161-00220302-2011 60 Transverse raw, thin, centrifugal, Transverse > 500 > 206 > 25

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Centrifugal casting TU 4112-161-00220302-2011 raw, thin, centrifugal, Transverse > 178

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Boundedly welded insensitive inclined

Standards

Standard Description
TU 4112-161-00220302-2011 TU 4112-161-00220302-2011

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
V % Vanadium
Zr % Zirconium
Al % Aluminium
C % Carbon
Mo % Molybdenum
W % Tungsten

Description of physical characteristics

Parameter Units of measurement Description
E\cdot 10^{9} MPa Elastic modulus
\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

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