27H2N2M1F

Steel is difficult to weld, it is resistant to brittleness. Flock sensitivity: insensitive .

responsible pressing tool parts with high strength properties and high ductility after normalization and tempering: container sleeve, ring, ram, needles and other parts operating at temperatures up to 500 degrees C.

Classification

Country Section Category
CIS, Russia, Ukraine Tool steel Die tool steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % V, % P, % C, % S, % Mo, %
TU 5950-73 92.87–94.68 0.17–0.37 0.5–0.8 2–2.5 1.4–1.8 0.2–0.3 < 0.03 0.25–0.3 < 0.03 0.8–1

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Round < 700 1300 1200 9 Normalized and tempered

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Difficult to weld insensitive loathsome

Standards

Standard Description
TU 5950-73

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ni % Nickel
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur
Mo % Molybdenum

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)

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