18H15N3M-SH (18H15N3M, DI1-SH, DI1)

For the manufacture of parts of structures in the aircraft industry

Classification

Country Section Category
CIS, Russia, Ukraine Corrosion-resistant alloys and steels Corrosion-resistant heat-resistant steel

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Mo, % W, %
TU 14-1-3297-82 78.045–82.55 < 0.6 < 0.6 14.5–16.5 2.5–3 < 0.03 0.15–0.21 < 0.015 0.3–0.5 < 0.5

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ $$\psi$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ d5, % Treatment
Rod TU 14-1-3297-82 930 735 55 880 14 Tempering 1050oC, Cooling oil, Vacation 640 - 680oC, Cooling air
Rod TU 14-1-3297-82 1130 885 50 690 12 Tempering 1050oC, Cooling oil, Vacation 540 - 580oC, Cooling air

Standards

Standard Description
TU 14-1-3297-82

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\psi$$ % Reduction in cross section on fracture
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness