1H2M1

Hardness 1H2M1 pipe hot deformity. GOST 550−75 HB 10 -1 = 227 MPa .

for the production of double-layer sheet steel and seamless pipes for the oil refining and petrochemical industry

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Low alloy structural steel for welded structures

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, % Mo, %
GOST 550-75 94.43–96.55 0.17–0.37 0.3–0.6 2–2.5 < 0.3 < 0.5 < 0.035 0.08–0.13 < 0.035 0.9–1.1

Information on suppliers

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
Sheet 30–60 450 240 19 800
Trumpet GOST 550-75 hot rolling 441 265 20 45 980

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Trumpet GOST 550-75 hot rolling 227

Analogues

Germany USA
BGH 7380 2 1/4 Cr 1 Mo

Standards

Standard Description
GOST 550-75

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Cu % Copper
Ni % Nickel
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)
$$\psi$$ % Reduction in cross section on fracture
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness