EP604

Classification

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

Chemical composition

Standard Fe, % Si, % B, % Mn, % Cr, % Ti, % Ni, % P, % C, % S, % Mo, % W, %
24.025–35.3 < 0.5 0.4–0.55 7–8.5 14–16 1.3–1.8 24.725–44.275 < 0.025 < 0.08 < 0.02 2.5–4 6.5–8.5

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\rho$$, $$\frac{kg}{m^3}$$
18 8050
20 1.45

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma_{0.2}$$, $$MPa$$ d5, % Напр. Treatment
Sheet TU 14-1-516-73 10 Longitudinal raw 390–420 45 540–560

Твёрдость по Роквеллу

Rolling Standard Classifiers Value, HRC
Sheet GOST 5632-14 raw 38–42

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Boundedly welded insensitive not inclined

Limit operating modes

Standard Температура, °C
GOST 5632-14 < 700

Heat Treatment Modes

Treatment
Tempering, vacation

Long-term strength

Standard Treatment Постоянно приложенное напряжение, МПа
GOST 5632-14 > 240

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
B % Bor
Mn % Manganese
Cr % Chrome
Ti % Titan
Ni % Nickel
P % Phosphorus
C % Carbon
S % Sulfur
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
Напр. Voltage
$$\sigma_{0.2}$$ $$MPa$$ Tensile stress required to produce a total elongation of 0.2%

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