Q390BZ Steel Performance and Applications

Q390BZ is a high-strength weathering steel grade designed for structural applications that require exceptional corrosion resistance and durability. Its excellent mechanical properties make it ideal for large-scale construction and industrial projects exposed to outdoor environments.

Features:

High tensile strength (≥390 MPa) and excellent toughness
Superior atmospheric corrosion resistance, forming a protective rust layer over time
Excellent weldability and formability
Consistent quality and dimensional stability

Chemical Composition (typical):

Carbon (C): ≤0.20%
Manganese (Mn): 1.20% max
Phosphorus (P): 0.07–0.12%
Sulfur (S): ≤0.05%
Silicon (Si): ≤0.55%

Delivery Condition:
Q390BZ is generally supplied in hot-rolled plates and coils, with customizable delivery conditions to meet project requirements. Additional processing services such as cutting, bending, welding, and drilling are available to ensure the material is ready for immediate use on-site.

Applications:
Q390BZ is widely used in bridges, industrial buildings, outdoor structures, storage tanks, and heavy machinery frameworks. Its combination of strength and weathering properties reduces maintenance costs while ensuring long-term performance.

Choosing Q390BZ ensures your projects benefit from a steel grade that delivers high strength, durability, and corrosion resistance, making it a reliable choice for demanding structural and outdoor applications.