SB450, a low temperature pressure vessel steel plate, is a high-quality steel product with excellent performance. It is widely used in cryogenic and pressure vessels due to its excellent low temperature toughness and strength.
The chemical composition of SB450 steel plate is strictly controlled, with low carbon content and appropriate addition of alloying elements. The main alloying elements are nickel, chromium, molybdenum, vanadium, and other elements, which can effectively improve the toughness and strength of the steel plate at low temperatures.
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SB450Chemical Composition |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
Mo |
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SB450 |
0.28-0.31 |
0.15 -0.40 |
0.90 |
0.030 |
0.030 |
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The mechanical properties of SB450 steel plate are excellent. It has good toughness and strength at low temperatures, and its impact resistance is also very good. The steel plate can maintain good performance at extremely low temperatures, making it suitable for use in cryogenic and pressure vessels.
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Grade |
SB450 Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SB450 |
mm |
Min Mpa |
Mpa |
Min % |
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t≦25 |
245 |
450-590 |
19 |
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25<t≦50 |
245 |
450-590 |
23 |
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The heat treatment state of SB450 steel plate is usually quenched and tempered to achieve the desired mechanical properties. Quenching can increase the hardness and strength of the steel plate, while tempering can improve its toughness and reduce the brittleness.
The main application of SB450 steel plate is cryogenic and pressure vessels. These vessels require high-quality materials with excellent low temperature performance to ensure safe operation at low temperatures or under high pressure. SB450 steel plate has good corrosion resistance and weldability, making it suitable for use in cryogenic and pressure vessels.
