GB/T 4171 Q355GNH Corten steel H-beams offer excellent atmospheric corrosion resistance. The primary alloying elements added to Q355GNH weathering steel are copper (Cu) and nickel (Ni), which promote the formation of a dense and stable protective oxide layer on the steel surface.
Compared with stainless steel, Q355GNH H-beams contain only trace amounts of alloying elements. The total content of weathering elements-such as P, Cu, Cr, Ni, Mo, Nb, V, and Ti-is relatively low, ensuring a cost-effective solution while maintaining strong corrosion resistance.
Performance of Q355GNH Corten Steel H-Beams
GB/T 4171 Q355GNH Corten steel H-beams feature excellent anti-rust performance, good weldability, and stable mechanical properties. They are widely used in:
Shipping container frames
External building support structures
Bridges and towers
Structural components exposed to atmospheric environments
Structures operating in corrosive gas or liquid environments
These H-beams are especially suitable for long-term outdoor applications where reduced maintenance is required.
Q355GNH Corten Steel H-Beam Specifications
Thickness: 2–300 mm
Width: 1000–4200 mm
Length: 1000–12000 mm
Custom sizes can be supplied upon request.
Chemical Composition of Q355GNH Steel (%)
| Element | C | Si | Mn | P | S | Cu | Cr | Ni |
|---|---|---|---|---|---|---|---|---|
| Q355GNH | ≤0.12 | 0.20–0.75 | ≤1.00 | ≤0.13 | ≤0.13 | 0.25–0.55 | 0.40–0.80 | ≤0.65 |
Mechanical Properties of Q355GNH H-Beams
Yield Strength: 345–355 MPa
Tensile Strength: 490–630 MPa
Elongation (Min): 22%
Manufacturing & Delivery Details
Production Technique: Hot Rolled
Surface Treatment: Normalized / Tempered / Annealed / Painted
Heat Treatment: Quenched, Normalized, Tempered, Q&T
Trade Terms: FOB, CFR, CIF, etc.
Packing: Export seaworthy packing, securely bundled and protected
Why Choose Our Q355GNH H-Beams
We supply first-class quality GB/T 4171 Q355GNH Corten steel H-beams with competitive pricing and reliable service. Our products are suitable for demanding structural applications requiring durability, corrosion resistance, and long service life.
If GB/T 4171 Q355GNH Corten steel H-beams meet your project requirements, please feel free to contact us. We look forward to cooperating with you and welcome your inquiry.
