Q265GNH Weather Resistant Steel Plate For Towers
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Gnee Steel (Tianjin) Co., Ltd. is one of the most professional q265gnh weather resistant steel plate for towers manufacturers and suppliers in China. Welcome to wholesale customized q265gnh weather resistant steel plate for towers at competitive price from our factory. Good service and quality products are available.
Products Description
Q265GNH Weather Resistant Steel Plate is a high-performance structural material engineered to meet the rigorous demands of tower construction in harsh environments. Compliant with China's GB/T 4171 standard and comparable to international Corten steel, this low-alloy steel combines superior corrosion resistance, mechanical strength, and weldability, making it ideal for transmission towers, communication towers, and industrial infrastructure exposed to extreme weather conditions.
Core Alloy Composition & Corrosion Resistance
Q265GNH incorporates a strategic blend of alloying elements to form a self-healing protective rust layer, significantly reducing long-term maintenance costs. Key components include:
|
Grade |
Chemical Components(%) |
||||||||
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
Others |
|
|
Q265GNH |
≤0.12 |
0.10~0.40 |
0.20~0.50 |
0.07~0.12 |
≤0.02 |
0.20~0.45 |
0.30~0.65 |
0.25~0.50 |
a,b |
|
In order to improve the performance of steel, one or more trace alloying elements can be added: Nb 0.015%~0.060%, V 0.02%~0.12%, Ti 0.02%~0.10%, Alt>0.020%. If the above elements are used in combination, it should be ensured that the content of at least one of the elements reaches the lower limit of the above chemical composition. The following alloying elements can be added: Mo < 0.30%, Zr < 0.15%. |
|||||||||
Mechanical Performance
Q265GNH delivers robust mechanical properties tailored for load-bearing tower applications:
|
Grade |
Tensile Test |
180 Degrees Bending Test Diameter of the bending center |
||||||||||
|
Lower-yield-strength R/(N/mm²) No less than |
Tensile Strength Rm/(N/mm²) |
Elongation after fracture A/% No less than |
||||||||||
|
≤16 |
>16~ 40 |
>40~ 60 |
>60 |
≤16 |
>16~ 40 |
>40~ 60 |
>60 |
≤6 |
>6~ 16 |
>16 |
||
|
Q265GNH |
265 |
- |
- |
- |
≥410 |
27 |
- |
- |
- |
a |
- |
- |
Applications in Tower Construction
Designed for longevity in challenging environments, Q265GNH is widely used in:
- Transmission Towers: Withstands salt-laden air and sandstorms in desert or coastal regions.
- Communication Towers: Reduces maintenance needs for remote or hard-to-access installations.
- Industrial Towers: Resists chemical corrosion in power plants, refineries, and petrochemical facilities.
Sustainability & Cost Efficiency
By eliminating the need for painting or galvanization, Q265GNH reduces material waste and carbon emissions. Its low-maintenance design aligns with circular economy principles, while recyclability enhances long-term environmental benefits.
Quality Assurance
Manufactured using advanced hot-rolling techniques, Q265GNH undergoes rigorous testing for chemical composition, mechanical properties, and surface quality. Certifications such as ISO and SGS ensure compliance with international standards.
Technical Specifications
Standards: GB/T 4171, ASTM A242/A588 equivalent.
Chemical Composition: Cu (0.20–0.45%), P (0.07–0.12%), Cr (0.30–0.65%), Ni (0.25–0.50%).
Mechanical Properties: Yield Strength ≥265 MPa, Tensile Strength 410–540 MPa, Elongation ≥21%.
Key Features:
- Corrosion Resistance: Cu/P/Cr/Ni alloy technology for long-term outdoor use.
- High Strength: Yield strength ≥265 MPa for heavy-duty load-bearing.
- Sustainability: Reduces painting needs and supports circular economy principles.
- Wide Applicability: Ideal for transmission towers, communication towers, and industrial infrastructure.
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