Characteristics of St3ps-brand steel
St3ps is a semi-killed carbon steel for construction and general usage, and is used in various load-bearing and non-load-bearing elements of metal structures. Its chemical composition corresponds to the DSTU 2651 and GOST 380 standards.
Classification: Standard-grade structural carbon steel.
Product: Steel sheets and long product.
Chemical composition of St3ps steel, %
|
С |
Si | Mn | P | S | Cr | N | Cu |
|
0.14-0.22 |
0.05-0.15
|
0.4-0.65
|
<0.04
|
<0.05
|
<0.03
|
<0.010 | <0.3 |
Mechanical properties of St3ps steel
| Standard | Ultimate tensile strength, Rm (MPa) | Standard Minimum yield strength, ReH (MPa) | Minimum elongation ratio σ, % | |||||
| Up to 20 | 20-40 | 40-100 | More than 100 | Up to 20 | 20-40 | More than 40 | ||
| GOST 14637 DSTU 8803 | 370-480 | 245 | 235 | 225 | 205 | 26 | 25 | 23 |
Analogues to St3ps steel
|
US |
A284Gr.D, A57036, A573Gr.58, A611Gr.C, GradeC, K01804, K02001, K02301, K02502, K02601, K02702 |
|
Japan |
SS400 |
|
EU |
Fe37-3FN, Fe37-3FU, Fe37B1FN, Fe37B1FU, Fe37B3FN, Fe37B3FU, S235J0, S235J2G3, S235JR, S235JRG2, S235JRG3 |
|
China |
Q235, Q235A, Q235A-B, Q235A-Z, Q235B, Q235B-Z |
|
Sweden |
1312, 1313 |
|
Finland |
FORM300H |
Application
St3ps carbon steel is used in flat and shaped steel products, thick plates, hot and cold rolled coil, arc-welded pipes and sections, forgings, stampings and other metal components. These are used in construction and machine-building for manufacturing metal structures and components for use in normal temperatures.
Welding
St3pc steel can be welded without limitation. The standard methods include manual-arc, automatic-arc, contact and electroslag welding. Preheating and subsequent heat treatment is recommended for gauges over 36 mm.
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