Characteristics of St3sp-brand steel
St3sp is a standard-grade carbon steel used in load-bearing elements of welded and non-welded structures and components. Its chemical composition conforms to the DSTU 2651 and GOST 380 standards.
Classification: Standard-grade structural carbon steel.
Product: Load-bearing elements of welded and non-welded structures and components used in positive temperatures.
Chemical composition of St3sp steel, %
|
С |
Si |
Mn |
P |
S |
Ni |
Cr |
N |
Cu |
As |
|
0.14-0.22 |
0.15-0.3
|
0,4-0,65
|
<0.04
|
<0.05
|
<0.03
|
<0.3 |
<0.008 |
<0.3 |
<0.08 |
Mechanical properties of St3sp steel
|
Standard |
Minimum yield strength, ReH (MPa) |
Ultimate tensile strength, Rm (MPa) |
Minimum elongation ratio σ, % |
|
GOST 14637 |
370-480 |
245 |
25 |
|
DSTU 8803 |
370-480 |
245 |
25 |
Analogues to St3sp steel
|
US |
A284Gr.D, A57036, A573Gr.58, A611Gr.C, GradeC, K01804, K02001, K02301, K02502, K02601, K02701, K02702, M1017 |
|
Germany |
1.0038, 1.0116, DC03, Fe360B, Fe360D1, RSt37-2, RSt37-3, S235J0, S235J2G3, S235JR, S235JRG2, St37-2, St37-3, St37-3G |
|
Japan |
SS330, SS34, SS400 |
|
France |
E24-2, E24-2NE, E24-3, E24-4, S235J0, S235J2G3, S235J2G4, S235JRG2 |
|
UK |
1449-2723CR, 1449-3723CR, 3723HR, 40B, 40C, 40D, 4360-40B, 4360-40D, 4449-250, 722M24, Fe360BFU, Fe360D1FF, HFS3, HFS4, HFW3, HFW4, S235J2G3, S235JR, S235JRG2 |
|
EU |
Fe37-3FN, Fe37-3FU, Fe37B1FN, Fe37B1FU, Fe37B3FN, Fe37B3FU, S235, S235J0, S235J2G3, S235JR, S235JRG2 |
|
Italy |
Fe360B, Fe360BFN, Fe360C, Fe360CFN, Fe360D, Fe360DFF, Fe37-2, S235J0, S235J2G3, S235J2G4, S235JRG2 |
|
Belgium |
FE360BFN, FE360BFU, FED1FF |
|
Spain |
AE235BFN, AE235BFU, AE235D, Fe360BFN, Fe360BFU, Fe360D1FF, S235J2G3, S235JRG2 |
|
China |
Q235, Q235A, Q235A-B, Q235A-Z, Q235B, Q235B-Z, Q235C |
|
Sweden |
1312, 1313 |
|
Bulgaria |
BSt3ps, BSt3sp, Ew-08AA, S235J2G3, S235JRG2, WSt3ps, WSt3sp |
|
Hungary |
Fe235BFN, Fe235D, S235J2G3, S235JRG2 |
|
Poland |
St3S, St3SX, St3V, St3W |
|
Romania |
OL37.1, OL37.2, OL37.4 |
|
Czech Republic |
11375, 11378 |
|
Finland |
FORM300H, RACOLD03F, RACOLD215S |
|
Austria |
RSt360B |
Application
St3sp steel is used in load-bearing elements of welded and non-welded structures and components that are used in positive temperatures. It is used to make thick- and thin-sheeted products, rolled and shaped profiles (channel sections, I-beams, angle bars, strips, scopes, mountings, etc). It is also used for pipes for various uses and with different cross-sections, forgings, stampings and other metal components. It is used in civil and industrial construction, and in above-ground, overground and underground railways.
Welding
St3sp steel can be welded without preheating and subsequent heat treatment. However, for components with gauges over 3.6 cm, it is advisable to heat the material to 100°C and subsequently heat-treat it.
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