EN10297 E355 is a type of steel for low-alloy structural steel.
EN10297 E355 Low-alloy structural steel refers to alloy structural steel with a total alloy content of less than 5%. The carbon content of this type of steel is similar to that of low-carbon steel, which is mainly strengthened by a small amount of alloying elements to improve toughness and weldability. Its strength is much higher than the carbon steel of the same carbon. Widely used in pressure vessels, chemical equipment, boilers, bridges, vehicles, ships and large steel structures. Alloy elements manganese, silicon, and molybdenum to cause solid solution strengthening. Vanadium and niobium can refine grains and improve toughness. Molybdenum can improve the hardenability and promote the bainite structure, and it can also improve the heat strength.
EN10297 E355 steel Chemical composition %
|
C |
Si |
Mn |
P |
S |
|
max 0.22 |
max 0.55 |
max 1.6 |
max 0.030 |
max 0.035 |
EN10297 E355 steel mechanical properties:
|
Yield strength |
Tensile strength |
Elongation |
|
≥ 295 MPa |
≥470 MPa |
≥ 18 |
EN10297 E355 steel performance:
EN 10297 Grade E355 low alloy structural steel should first have a higher yield limit, but due to the complexity of its working conditions, it should also have good comprehensive mechanical properties. For example, in use, it can withstand various stresses (such as temperature difference stress, stress caused by alternating fatigue load, etc.), and can withstand shearing, cold bending, welding and other processing procedures during the manufacturing process, and the possible aging brittleness.
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