Everything You Need to Know About BL3 Steel Grade

BL3 steel is a low carbon, low alloy steel grade that is commonly used in the manufacturing of pressure vessels and boilers. It is known for its high strength and excellent impact resistance, making it an ideal choice for applications where durability and reliability are crucial.

Mechanical Properties:
– Tensile Strength: 510-650 MPa
– Yield Strength: 355 MPa
– Elongation: 21%
– Impact Toughness: 27 J @ -20°C

Chemical Composition:
– Carbon (C): 0.18% max
– Manganese (Mn): 0.90-1.60%
– Silicon (Si): 0.15-0.50%
– Phosphorus (P): 0.040% max
– Sulfur (S): 0.040% max
– Nickel (Ni): 0.70-1.20%
– Chromium (Cr): 0.30% max
– Molybdenum (Mo): 0.20% max
– Vanadium (V): 0.08% max

The above mechanical properties and chemical composition make BL3 steel an excellent choice for applications requiring high strength, toughness, and resistance to harsh operating conditions. It is important to note that BL3 steel is often used in a normalized and tempered condition to achieve its desired properties.

Overall, BL3 steel is a reliable and versatile material that meets the stringent requirements of pressure vessel and boiler manufacturing. Its combination of high strength, impact resistance, and good weldability makes it a popular choice in various industries.
BL3 Steel grade
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