1. What is the material of S355K2+N:
S355K2+N is a structural steel material that belongs to one of the European standards EN 10025-2. It has good mechanical properties and durability, and is suitable for various structural engineering and construction projects. In S355K2+N, S represents structural steel, 355 is the yield strength of the steel plate, and K2 represents the impact performance requirements of the steel plate, that is, when the steel plate is impacted at -20 degrees, the impact energy is not less than 40J. n means that the delivery status of the steel plate is normalized.
2. S355K2+N corresponds to the national standard: S355K2+N is a structural steel material, and the material corresponding to the Chinese national standard (GB T) is Q345D.
3. Chemical composition and mechanical properties of S355K2+N steel plate
S355K2+N Chemical Composition:
Carbon(c): 022%
Silicon (Si): 055%
Manganese (mn): 160% -1.70%
Sulfur (s): 0025%
Phosphorus (p): 0025%
S355K2+N Mechanical Properties:
Yield strength (min): 355 MPa
Tensile strength (min): 470-630 MPa
Elongation at break (min): 20%.
2. S355K2+N belongs to the European standard low-alloy steel plate, S355 in the S355K2+N steel plate is equivalent to the national standard Q345E, and K2 represents -40 degree impact. n stands for normalized rolling. S355K2+N steel plate can be used to manufacture: drilling rigs, electric shovels, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts for mining and various engineering construction.