Knowledge

• 14/Jul2025

  How will the weather resistance of Q500NH develop over time?

  Q500NH weathering steel develops a self-protecting rust patina over 2-3 years, significantly slowing corrosion to 0.01-0.03 mm/year in most environments. Its long-term performance depends on climate c

• 14/Jul2025

  How does Q500NH perform in weather resistance in environments with different ...

  Q500NH offers excellent weather resistance in neutral to moderately acidic/alkaline environments (pH 5–9) by forming a stable protective patina, but its corrosion resistance decreases significantly in

• 14/Jul2025

  Is Q500NH prone to deformation during processing? How to control it?

  Q500NH steel may deform during processing due to its high strength and thermal sensitivity. Control measures include optimized cutting/welding parameters, preheating, and post-process stress relief to

• 11/Jul2025

  What is the corrosion resistance of Q500NH? In what environment does it perfo...

  The corrosion resistance of Q500NH is typically 2-8 times better than ordinary carbon steel (such as Q235B), depending on the specific environment. According to long-term exposure tests, its corrosion

• 11/Jul2025

  What are the yield strength and tensile strength of Q500NH?

  Q500NH is a high-strength weathering steel with a minimum yield strength of 500 MPa and tensile strength ≥610 MPa, offering excellent durability for structural applications. Its corrosion resistance a

• 11/Jul2025

  Is Q500NH corten steel suitable for dynamically loaded structures?

  Q500NH (a type of Corten steel) can be used in dynamically loaded structures, but its suitability depends on the specific loading conditions, design details, and environmental factors.

• 11/Jul2025

  What is the fatigue performance of Q500NH?

  Q500NH is a high-strength weathering steel, commonly used in structural applications where both durability and corrosion resistance are required. Its fatigue performance depends on several factors, in

• 11/Jul2025

  What are the special requirements for the welding process of Q500NH steel?

  Q500NH welding requires low-hydrogen processes, controlled heat input, and compatible filler metals to preserve its weathering properties. Proper preheat, interpass temperature control, and post-weld

• 11/Jul2025

  Can Q500NH be used in coastal areas with high salt fog?

  Q500NH weathering steel can be used in coastal areas with high salt fog exposure, but its performance and longevity depend on proper design considerations and maintenance practices.

• 11/Jul2025

  Is the Q500NH high maintenance? Does it require regular inspections?

  Q500NH weathering steel requires minimal maintenance due to its self-protecting rust layer, but periodic inspections are recommended for critical structures or harsh environments (e.g., coastal areas)