GBT1591 wind turbine tower steel plate
GBT 1591 wind turbine tower steel plates are high-strength structural materials used in renewable energy systems. We provide certified industrial supply.
1.High Strength with Superior Weldability
2. Multiple Grades and Custom Thicknesses
3. Globally Certified for Compliance
GBT1591 wind turbine tower steel description
High-strength, low-alloy structural steel plates under GB/T 1591 (equivalent to EN 10025) are widely used in wind turbine tower manufacturing due to their excellent mechanical properties, weldability, and weather resistance. As a leading China-based manufacturer and bulk exporter, we supply Grades Q355B, Q355C, Q355D, Q355E, and higher grades (e.g., Q420, Q460) with enhanced toughness for low-temperature environments.
Key Features:
Thickness Range: 8mm to 120mm (customizable)
Certified Standards: GB/T 1591, EN 10025, ASTM A572 (for global projects)
Applications: Wind power towers, offshore platforms, heavy-load structures
Advantages: High yield strength, superior impact toughness (-40°C to -60°C options), and corrosion resistance with optional coatings.
Ideal for EPC contractors, renewable energy fabricators, and infrastructure developers seeking cost-effective, durable steel for wind energy projects. Contact our factory for GB/T 1591 steel plate quotes, technical support, or large-volume procurement.
GBT1591-Chemical Composition/Tensile Requirements
| GBT1591 Chemical Composition | |||||||||||||||
| (Element) | Q355B | Q355C | Q355D | Q355E | Q390B | Q390C | Q390D | Q390E | Q420B | Q420C | Q420D | Q420E | Q460C | Q460D | Q460E |
| C ≤ | 0.24 | 0.2 | 0.18 | 0.18 | 0.2 | 0.2 | 0.18 | 0.18 | 0.2 | 0.2 | 0.18 | 0.18 | 0.2 | 0.18 | 0.18 |
| Si ≤ | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Mn ≤ | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.6 | 1.7 | 1.7 | 1.7 | 1.8 | 1.8 | 1.8 |
| P ≤ | 0.035 | 0.03 | 0.025 | 0.025 | 0.035 | 0.03 | 0.025 | 0.025 | 0.035 | 0.03 | 0.025 | 0.025 | 0.03 | 0.025 | 0.025 |
| S ≤ | 0.035 | 0.03 | 0.025 | 0.025 | 0.035 | 0.03 | 0.025 | 0.025 | 0.035 | 0.03 | 0.025 | 0.025 | 0.03 | 0.025 | 0.025 |
| Nb | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| V | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Ti | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Cr ≤ | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Ni ≤ | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Cu ≤ | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| N ≤ | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 | 0.015 |
| Als ≥ (if need) | – | – | 0.015 | 0.015 | – | – | 0.015 | 0.015 | – | – | 0.015 | 0.015 | – | 0.015 | 0.015 |
| GBT1591 – Tensile Requirements | |||||||||||||||
| Property | Q355B | Q355C | Q355D | Q355E | Q390B | Q390C | Q390D | Q390E | Q420B | Q420C | Q420D | Q420E | Q460C | Q460D | Q460E |
| Yield Strength, MPa ≥ | 355 | 355 | 355 | 355 | 390 | 390 | 390 | 390 | 420 | 420 | 420 | 420 | 460 | 460 | 460 |
| Tensile Strength, MPa | 470-630 | 470-630 | 470-630 | 470-630 | 490-650 | 490-650 | 490-650 | 490-650 | 520-680 | 520-680 | 520-680 | 520-680 | 550-720 | 550-720 | 550-720 |
| Elongation, % ≥ | 22 | 22 | 22 | 22 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 17 | 17 | 17 |
| Impact, J, -20℃ | – | ≥34 | ≥34 | ≥27 | – | ≥34 | ≥34 | ≥27 | – | ≥34 | ≥34 | ≥27 | ≥34 | ≥34 | ≥27 |
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GBT1591 wind turbine tower steel Application
GB/T 1591 wind turbine tower steel plates are extensively used in the renewable energy sector, particularly for constructing high-strength, durable wind turbine towers. In onshore and offshore wind farms, these plates are essential for fabricating tubular tower sections and flanges due to their excellent strength-to-weight ratio and fatigue resistance. The power generation industry relies on GB/T 1591 grades like Q355NE and Q420NE for their superior weldability and impact toughness at low temperatures, ensuring stability in harsh environments.
In civil engineering, these plates are employed in hybrid tower designs and transition pieces, where high load-bearing capacity is critical. The offshore industry uses them for monopile foundations and substructures, benefiting from their corrosion resistance and structural integrity. GB/T 1591 steel is also favored for heavy-lifting equipment and crane booms in wind farm construction due to its high yield strength and dynamic load performance.
With strict adherence to international standards, GB/T 1591 plates are a top choice for EPC contractors and wind turbine manufacturers, ensuring reliability under cyclic loads and extreme weather conditions worldwide.
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