06HN28MDT (EI943, 0Х23Н28М3Д3Т, EP591)

St. chemical equipment, reactors, heat exchangers, pipelines, tanks, operating at t up to 80 degrees in sulfuric to-those, except for 55%, extraction phosphoric, acetic and other environments of increased aggressiveness in pr-ve complex mineral fertilizers. OZL-17U, OZL-37−2.

welded structures operating at temperatures up to 80 ° C in sulfuric acid of different concentrations, except 55% acetic acid and phosphoric acid.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % P, % C, % S, % Mo, %
GOST 5632-72 36.885–46.5 < 0.8 < 0.8 22–25 0.5–0.9 2.5–3.5 26–29 < 0.035 < 0.06 < 0.02 2.5–3

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
20 13 7960 0.75
100 191 10.9 13
200 186 12.9 15
300 179 13.6 17
400 171 14.4
500 161 14.9 22
600 156 15.3 24
700 151 16.8 25
800 145 16.3 26
900 16.8

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ Treatment
Pipes are coldly deformed. GOST 9941-81 490 30
Forgings GOST 25054-81 510 216 30–36 30–40
Pipe billet 540 245 35 50 980 Hardening of 1050-1080 ° C, the water
The plates GOST 7350-77 540 215 35 Hardening of 950-1080 ° C, cooling water
Sheet GOST 5582-75 540 35 Hardening of 1050-1080 ° C, cooling water
Sheet GOST 4986-79 550 13–25 Hardening of 930-1050 ° C, air cooling

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Forgings GOST 25054-81 200

Technological Properties

Weldability
no limits

Analogues

Germany USA
1.4563 N08028
1.4563 (X1NiCrMoCu31-27-4)

Standards

Description of chemical elements

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

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
$$R\cdot 10^{-6}$$ $$\Omega\cdot m$$ 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
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness

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