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Executive Standard: SA299 Gr. B steel plates comply with the ASME standard, specifically ASTM A299/A299M.2026-08-26
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SA299 is a carbon-manganese-silicon steel plate designed for pressure vessels—often referred to as "gas drum steel" under US standards.2026-08-19
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ntroduction to SA299 Gr.A Steel Plate:
SA299 Gr.A is a steel plate grade designated for boilers and pressure vessels under American standards.2026-08-11 -
A285 Gr.C and SA285 Gr.C steel plates represent the same grade, though they are governed by different standards.2026-08-04
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SA283 Gr.B is a low-to-medium strength carbon structural steel plate conforming to the American Society of Mechanical Engineers (ASME) standard.2026-07-31
ST52-3 steel, ST52-3 steel plate, ST52-3 carbon steel plate
ST52-3 steel is a low carbon, high strength structural steel which can be readily welded to other weld-able steel. With its low carbon equivalent, it possesses good cold-forming properties. The ST52-3 steel plate is supplied in normalized or control-rolled condition.
Specification of ST52-3 steel plate:
Thickness: 5mm-650mm
Width: 1500-4000mm
Length: 3000-18500mm
Chemical composition of the ST52-3 carbon steel plate (%):
|
Thickness, C
|
P |
S |
N |
|
|
≤16 |
0.22 |
0.050 |
0.050 |
|
|
＞16 ≤30 |
0.22 |
|||
|
＞30 ≤40 |
0.24 |
|||
|
＞40 ≤63 |
0.24 |
|||
|
＞63 ≤100 |
0.24 |
|||
Mechanical properties of ST52-3 carbon steel plate
|
Nominal thickness (mm)
|
to 16 |
16 - 40 |
40 - 63 |
63 - 80 |
80 - 100 |
100 - 150 |
150 - 200 |
|
ReH - Minimum yield strength (MPa) |
355 |
345 |
335 |
325 |
315 |
|
|
|
Nominal thickness (mm) |
to 3 |
3 - 100 |
|
Rm -Tensile strength (MPa) |
510-680 |
490-630 |
|
Nominal thickness (mm) |
≥0.5 ＜1 |
≥1＜1.5 |
≥1.5＜2 |
≥2﹤2.5 |
≥2.5＜3 |
≥3＜40 |
≥40﹤63 |
≥63﹤100 |
|
A - Minimum elongation Lo = 5,65 √ So (%) Longitudinal |
14 |
15 |
16 |
17 |
18 |
22 |
21 |
20 |
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