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Q355NH Weathering Steel Plate

Q355NH is a high-strength, low-alloy structural steel that offers excellent corrosion resistance. Its composition allows it to form a stable, rust-like surface layer upon exposure to the atmosphere, which acts as a barrier to further corrosion.

What is Q355NH Steel Plate?

Q355NH is a high-strength, low-alloy structural steel that offers excellent corrosion resistance. Its composition allows it to form a stable, rust-like surface layer upon exposure to the atmosphere, which acts as a barrier to further corrosion. This self-protecting layer makes Q355NH suitable for outdoor applications, reducing the need for protective coatings or frequent maintenance.

Applications

  • Bridge Construction: Ideal for use in bridge components and supports.
  • Building Facades: Often used for building facades due to its natural weathered appearance.
  • Railway Carriages: Used in railway carriage manufacturing for its durability and aesthetic appeal.
  • Outdoor Structures: Suitable for architectural installations, sculptures, and outdoor furniture.

Q355NH Weathering Steel Plate 

Steel Standard:GB/T 4171

Rolling Type:Weathering steel plate,Alloy steel plate

Thickness:2mm-300mm

Width:1000mm-4200mm

Length:3000mm-18000mm or Coil

Heat Treatment:As rolled/Normalised

Specification Parameters
Basic Information

GB/T 4171 Q355NH weathering steel chemical composition (%)

Grade C Max Si Max Mn P S Max
Q355NH 0.16 0.5 0.5-1.5 0.03 0.03

GB/T 4171 Q355NH weathering steel mechanical property

Grade Yield Strength(MPa) Tensile Strength(MPa) % Elongation min
Q355NH 325-355 490-630 20
Service Support
Q355NH Weathering Steel Plate

Packaging Details: Standard export seaworthy packing or as required.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability 5000MT/Per Month.
MOQ: 1 Pcs.