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
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 |