An In-Depth Look at the Composition and Characteristics of StE380 Steel Grade

StE380 is a low alloy high strength structural steel grade, typically used in the construction industry. It is classified as a fine grain structural steel, suitable for welding, bending, and forming.

Chemical Composition of StE380 Steel Grade:
– Carbon (C): 0.27%
– Silicon (Si): 0.15-0.50%
– Manganese (Mn): 1.15-1.50%
– Phosphorus (P): 0.035%
– Sulfur (S): 0.035%
– Chromium (Cr): 0.20%
– Nickel (Ni): 0.30%
– Copper (Cu): 0.30%
– Molybdenum (Mo): 0.08%
– Vanadium (V): 0.10%
– Nitrogen (N): 0.010%

Mechanical Properties of StE380 Steel Grade:
– Tensile Strength: 570-720 MPa
– Yield Strength: 380 MPa
– Elongation: 19%
– Hardness: 180 HB
– Charpy V-notch Impact Test: 40 J @ 0°C

StE380 steel grade offers good weldability due to its low carbon equivalent, allowing for easy fabrication and excellent forming characteristics. It has a high strength-to-weight ratio, making it suitable for structural applications where weight reduction is important.

The addition of small amounts of alloying elements, such as chromium, nickel, and molybdenum, improves the steel’s overall strength, toughness, and resistance to corrosion.

The fine grain structure of StE380 steel provides enhanced strength, allowing it to withstand high mechanical stresses and dynamic loads. It is commonly used in the construction of bridges, buildings, and machinery, where high strength and durability are crucial.

Overall, StE380 steel grade offers a combination of good weldability, high strength, and excellent formability, making it a versatile choice for various structural applications.
StE380 Steel grade
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