Knowledge

• 05/Nov2025

  Can S355J0WP be used in damp places?

  S355J0WP can be used in damp places, as it is a weathering steel specifically designed to resist corrosion in humid, outdoor, and moderately aggressive environments.

• 05/Nov2025

  How does the thickness of the steel plate affect the rust resistance of Corte...

  The thickness of Corten A and Q355NH steel plates does not directly improve their inherent rust resistance (i.e., the speed of forming a protective patina or the patina’s stability), but it significan

• 05/Nov2025

  What are the typical applications of Corten A and Q355NH?

  Corten A and Q355NH, as weathering steels, share most typical applications due to their similar corrosion resistance and mechanical properties, with core uses focused on outdoor, low-maintenance struc

• 05/Nov2025

  What are the specific process parameters for hot-bending ASTM A588?

  In the hot - bending process, in addition to the above parameters, it is also necessary to ensure uniform heating of the entire bending area and use appropriate tools and machines to ensure that the s

• 05/Nov2025

  Which one is more rust-resistant, Corten A or Q355NH?

  Corten A generally exhibits slightly better rust resistance than Q355NH, mainly due to its higher phosphorus content (0.07%-0.15% vs. ≤0.030% in Q355NH) and a higher upper limit of chromium content (u

• 05/Nov2025

  Can ASTM A588 be hot-bent?

  ASTM A588, a widely used high-strength low-alloy (HSLA) weathering steel, is fully compatible with hot-bending processes when proper procedures are followed. Its chemical composition (typically contai

• 04/Nov2025

  How long does it take for S355J0WP to stabilize after installation?

  S355J0WP reaches full stabilization (patina + stress relief) in 6–12 months under typical outdoor conditions. Harsh or dry environments may extend this time, but proper maintenance (cleaning, moisture

• 04/Nov2025

  Is it easy to drill holes in Q235NH?

  Q235NH is one of the easiest weathering steels to drill—you just need to follow basic mild steel drilling practices, and no special skills are required.

• 04/Nov2025

  What are the main differences between Q355NH and Q235NH?

  Choose Q355NH if the project needs to bear loads or resist low temperatures; choose Q235NH if it’s only for light-duty decoration in normal temperatures.

• 04/Nov2025

  Can Q295GNH be used for building exterior walls?

  Q295GNH is an excellent choice for building exterior walls, but its performance and aesthetics depend on proper pretreatment, design, and maintenance.