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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
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P355QH steel, P355QH steel plate, P355QH boiler steel plate
P355QH steel plate under EN 10028-6 standard, it is a kind of alloy special steel with elevated temperature properties. Bebon steel is specialized in supplying P355QH steel plate. For more information of P355QH steel plate, please see the following:
Key words: P355QH steel, P355QH steel plate, P355QH boiler steel plate, P355QH alloy steel, P355QH steel plate/sheet, P355QH steel for pressure vessels, P355QH capacitor plate, P355QH pressure vessel steel plate, P355QH storage tanks steel plate, P355QH heat exchanger steel plate.
P355QH steel specification:
Grade: P355QH P355QH Steel Number: 1.8867
Classification: Alloy special steel with elevated temperature properties.
P355QH steel plate size:
Thickness: 5mm to 300mm, Width: 1500mm to 4050mm, Length: 3000mm to 15000mm
|
Grade |
The Element Max (%) |
||||||
|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P355QH |
0.16 |
0.4 |
1.5 |
0.025 |
0.015 |
0.015 |
0.005 |
|
Mo |
Cu |
Nb |
Ni |
Ti |
V |
Zr |
|
|
0.25 |
0.3 |
0.05 |
0.5 |
0.03 |
0.06 |
0.05 |
|
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
|
Grade |
P355QH mechanical property |
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P355QH |
mm |
Min Mpa |
Mpa |
Min % |
|
6-50 |
355 |
490-630 |
22% |
|
|
50-100 |
335 |
490-630 |
22% |
|
|
100-150 |
315 |
450-590 |
22% |
|
P355QH steel plate application:
P355QH steel plate is widely used in petroleum, chemical industry, power station, boiler, etc, P355QH steel is also used in reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel and boiler steam drum bottle steam, liquefied petroleum, hydropower station high pressure hose, spiral case and other equipment and components.
P355QH steel delivery status: hot rolling, controlled rolling or normalizing/AR, CR/N.
We also have a high quality logistics team who make sure the fast delivery time and shipment. Anyway, if you want to find P355QH steel supplier, P355QH steel manufacturer, P355QH steel exporter, please contact us. We will give you the P355QH competitive price, P355QH good quality and best service from us.

