12H13 (1X13)

Details of turbines, pipes, details of boilers. Structural elements in water and steam and mildly acting aggressive environments of the food industry

parts with high ductility, subject to impact loads; Products are exposed to slightly aggressive media at room temperature, as well as parts operating at 450−500 degrees; martensitic steel — ferritic class

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, %
GOST 5632-72 83.595–87.91 < 0.8 < 0.8 12–14 < 0.6 < 0.03 0.09–0.15 < 0.025

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} c\cdot 10^{-3}, \frac{J}{kg\cdot K} R\cdot 10^{-6}, \Omega\cdot m
20 217 7720 0.506
100 212 10.2 28 7700 0.473 0.584
200 206 11.2 28 7670 0.487 0.679
300 198 11.4 28 7640 0.506 0.769
400 189 11.8 28 7620 0.527 0.854
500 180 12.2 27 7580 0.554 0.938
600 12.4 26 7550 0.586 1.021
700 12.7 26 7520 0.636 1.103
800 13 25 7490 0.657
900 10.8 0.666
1000 11.7

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 hot deformed. GOST 9940-81 392 21
Pipes are coldly deformed. GOST 9941-81 392 22
Rod GOST 18968-73 620 440–610 20 60 780 Normalized and tempered
Bar of specified strength GOST 18907-73 490–780 16
Rod GOST 5949-75 Longitudinal 590 410 20 60 880 Hardening of 1000-1050 ° C, air Accommodation 700-790 ° C, air
Wire GOST 18143-72 490–740 16–20
Forgings GOST 25054-81 < 600 Longitudinal 617 392 15–18 40–50 490–740 Hardening and tempering
The plates GOST 7350-77 650 250 15 Annealing
The plates GOST 7350-77 490 345 21 Hardening and tempering
Sheet GOST 5582-75 440 21

Brinell hardness number

Rolling Standard Classifiers Value, HBW
GOST 25054-81 Hardening, average vacation 187–229
Rod GOST 5949-75 annealing 121–197
Rod GOST 18907-73 annealing 1210–1870
Rod GOST 18968-73 normalization, average vacation 192–229

Technological Properties

Weldability Propensity to temper brittleness
Boundedly welded inclined

Critical point temperatures

Ac1, K Ac3(Acm), K Ar3(Arcm), K Ar1, K
730 850 820 700

Analogues

USA Germany
403 1.4006 (X12Cr13)

Standards

Standard Description
GOST 5632-72
GOST 5949-75
TU 14-1-3564-83

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

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
c\cdot 10^{-3} \frac{J}{kg\cdot K} The specific heat of the material (range 20°C–T)
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

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Ar3(Arcm) K
Ar1 K