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The demand for reliable materials in cryogenic service applications has increased significantly with the rapid growth of LNG terminals, industrial gas storage facilities, and low-temperature pressure vessels.2026-06-24
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As the global demand for liquefied natural gas (LNG) continues to grow, the need for reliable materials for cryogenic storage systems has become increasingly important.2026-06-18
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In industries where equipment must operate reliably under freezing or cryogenic conditions, material selection becomes a matter of safety and structural integrity.2026-06-01
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While both ASTM A203 Grade B and ASTM A106 Grade B serve critical roles in industrial applications, they are fundamentally different in composition, purpose, and performance.2026-06-01
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P355QL2 steel plate, P355QL2 chemical composition, P355QL2 mechanical property
P355QL2 steel plate under EN10028-6 standard which is a kind boiler steel. P355QL2 steel has a good weldability, it is widely used to build boilers and pressure vessels such as petroleum, chemical industry, power plants.
P…Q means the -20 degree and the impact energy is 27J
P…QH means the -20 temperature quality and the impact energy is 27J
P…QL2 means the -40 temperature quality and the impact energy is 27J
P…QL2 means the -60 temperature quality and the impact energy is 27J
P355QL2 steel plate specification:
Grade: P355QL2 Steel Standard: EN10028-6 Number: 1.8869
Thickness:6mm-450mm, Width:1200mm-4200mm, Length:3000mm-18000mm
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P355QL2 chemical composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
N |
B |
|
|
P355QL2 |
0.16 |
0.4 |
1.5 |
0.020 |
0.010 |
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 |
|
|
Grade |
|
|||
|
Thickness |
Yield |
Tensile |
Elongation |
|
|
P355QL2 |
mm |
Min Mpa |
Mpa |
Min % |
|
6-50 |
355 |
490-630 |
22% |
|
|
50-100 |
335 |
490-630 |
22% |
|
|
100-150 |
315 |
450-590 |
22% |
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P355QL2 steel surface treatment: Shot blasting and painting or coated.
P355QL2 steel application:
P355QL2 steel is widely used to build boilers and pressure vessels such as petroleum, chemical industry, power plants.
Additional Condition :
UT (Ultrasonic examination), AR (As Hot Rolled only), TMCP (Thermal Mechanical Control Processing), N(Normalized), Q+T (Quenched and Tempered), Z Direction Test (Z15, Z25, Z35) ,Charpy V-Notch Impact Test, HIC test, NDT, PWHT( Simulated Post Weld Heat Treatment), NACE0175, The Third Party Test (Such as SGS Test), Coated or Shot Blasting and Painting.
If you are interesting in our P355QL2 steel products, please feel free to contact us. Your enquiry will be highly appreciated, and we will give you a quotation upon receiving your detailed requirements.

