Q235FTB Wind Power Steel
Premium Wind Power Steel – Certified, Reliable, Cost-Effective
Product Overview
This article introduces Q235FTB structural steel for wind turbine towers manufactured by Chinese steel mills, hoping to meet your needs and encourage you to purchase this grade of steel.
Q235FTB is a high-quality structural steel plate specifically designed for wind power generation equipment, complying with the Chinese standard GB/T 11253-2019.
Key Advantages
- Superior Low-Temperature Toughness: Guaranteed impact toughness at -20°C
- Excellent Weldability: Optimized chemical composition ensures ease of fabrication
- Strict Quality Control: Complete traceability and certification
- Cost-Effective Solution: Competitive price for wind power applications
International Grade Comparison
Domestic Grade Comparison: Q235FT Series
Yield: ≥235MPa
Tensile: 360-510MPa
Impact Energy: 47J
Technical Specifications
Q235FTB Chemical Composition
| Element / Parameter | Grade: Q235FT Class: B |
|---|---|
| C (max) | 0.18 |
| Mn | 0.50~1.40 |
| P (max) | 0.030 |
| S (max) | 0.025 |
| Si (max) | 0.50 |
| Nb (max) | 0.050 |
| V (max) | 0.060 |
| Ti (max) | 0.050 |
| Mo (max) | 0.10 |
| Cr (max) | 0.30 |
| Ni (max) | 0.30 |
| Cu (max) | 0.30 |
| Als (min) | 0.015 |
| N (max) | 0.012 |
Q235FTB Mechanical Properties
| Property / Thickness | Grade: Q235FT Class: B |
|---|---|
| Yield Strength ReL (MPa) min - Thickness ≤16mm | 235 |
| Yield Strength ReL (MPa) min - Thickness >16~40mm | 225 |
| Yield Strength ReL (MPa) min - Thickness >40~100mm | 215 |
| Tensile Strength Rm (MPa) | 360~510 |
| Elongation after fracture A (%) min | 24 |
| Impact Energy KV2 (J) min (-20°C) | 47 |
| 180° Bending Test - Thickness ≤16mm | d=2a |
| 180° Bending Test - Thickness >16~100mm | d=3a |
Q235FTB Size and Specification
| Parameter / Product Form | Plate | Coil |
|---|---|---|
| Thickness (mm) | 6 - 120 | 2.0 - 12.0 |
| Width (mm) | 1500 - 3200 | 900 - 2000 |
| Length (mm) / Coil ID | 6000 - 12000 | ID 508 / 610 |
| Delivery Condition | Hot Rolled (As Rolled), UT tested available | |
Applications
Wind Power Towers
Primary application for Q235FTB, offering excellent strength and low-temperature toughness for wind turbine tower structures. Ideal for onshore and offshore wind power generation equipment.
Available Supply Range
📏 Thickness Range
- Plates: 6mm - 120mm
- Coils: 2.0mm - 12.0mm
- Custom thickness available
📐 Width & Length
- Width: 900mm - 3200mm
- Length: 6000mm - 12000mm
- Cut-to-length service
📦 Product Forms
- Steel Plates (Hot Rolled)
- Steel Coils
- Custom cut sheets
🔧 Surface Options
- As-rolled surface
- Shot blasted
- Primer coated (optional)
Custom Fabrication Services
Custom Cutting
Laser/Plasma cutting to spec
Edge Beveling
Single/double bevel for welding
Drilling & Punching
Custom hole patterns
Bending & Forming
Plate rolling, profiling
Quality & Manufacturing Assurance
Modern Production
Advanced continuous casting and controlled rolling
In-process Inspection
Rigorous testing including spectral analysis
Full Documentation
Mill Test Certificate EN 10204 3.1/3.2
Our Certifications
Packaging & Logistics
- Standard Packaging: Steel plates bundled with steel straps on wooden skids. Coils wrapped with waterproof paper.
- Marking: Each bundle/coil clearly marked with grade, size, heat number, weight.
- Logistics: FOB, CIF, CFR from main Chinese ports.
- Lead Time: Typically 30-45 days after order confirmation.
Frequently Asked Questions
What is the difference between Q235FTB and regular Q235B?
Q235FTB has guaranteed impact toughness at -20°C, critical for wind turbine structures.
What is the international equivalent of Q235FTB?
Q235FTB is comparable to S235J2 under EN 10025-2, offering similar -20°C impact properties.
What is the MOQ?
Standard MOQ is 25 metric tons for plates. Trial orders can be discussed.
Do you offer third-party inspection?
Yes, we cooperate with SGS, BV, TÜV for pre-shipment inspection.
Request a Quotation
Interested in Q235FTB steel? Please fill out the form below. Our sales team will contact you within 12 hours.