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Introduction to S355J0 Material Standard Steel Pipe
Basic Material Information
S355J0 is a European standard low-alloy high-strength structural steel that complies with the EN10025 standard. Among them, "S" represents structural steel, "355" represents its yield strength value of 355MPa, and "J0" refers to the impact energy test temperature of 0 ℃. It has excellent weldability, machinability, and reliable mechanical properties, as well as good impact toughness, can withstand low temperature environments, and also has good medium and low temperature fracture toughness, corrosion resistance, and other advantages.
Chemical composition requirements
The main alloying elements and content requirements of S355J0 are as follows: carbon (C) ≤ 0.20%, silicon (Si) ≤ 0.55%, manganese (Mn) ≤ 1.60%, phosphorus (P) ≤ 0.040%, sulfur (S) ≤ 0.040%, chromium (Cr) 0.30%, nickel (Ni) 0.50%, copper (Cu) 0.55%, molybdenum (Mo) 0.10%, aluminum (Al) 0.030%, titanium (Ti) 0.050%.
Mechanical performance indicators
Design strength: 355MPa.
Tensile strength: (Rm) 470-630MPa.
application area
In the field of architecture, it is commonly used in the construction of high-rise buildings, large factories, sports venues, and other structures.
Bridge field: commonly used in the construction of large highway bridges, railway bridges, overpasses, etc.
Mechanical field: widely used as materials for various mechanical parts and components, such as bearing seats, brackets, robotic arms, etc.
Other fields: It is also widely used in shipbuilding, petrochemicals and other fields.
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