Q345FTF Wind Power Steel

GB/T 28410-2012 | 345MPa Yield Wind Tower Plate | -50°C Impact (34J)

📏 Standard: GB/T 28410-2012
🏗️ Wind Power Towers
❄️ -50°C Impact 34J (Grade F)
💪 Yield ≥345 MPa

Product Overview

This article introduces Q345FTF 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. Q345FTF provides 345 MPa minimum yield, the highest low-temperature toughness at -50°C (Grade F) with 34J guaranteed impact energy, and complies with GB/T 28410-2012 for wind tower construction in extreme arctic environments.

📊 Q345FTF Approximate Grade Lookup Table

Key Advantages

  • Higher Strength Grade: Minimum yield 345 MPa (≤16mm) for heavier load designs.
  • Guaranteed -50°C Impact Toughness: Minimum 34J at -50°C (Grade F) – ultimate cold resistance.
  • Optimized Weldability: Low carbon (C≤0.20) and micro-alloying elements.
  • Strict Quality Control: Full traceability with EN 10204 3.1/3.2 certification.
  • Versatile Availability: Plates up to 100mm thick, coils upon request.

Technical Specifications

Q345FTF Chemical Composition (GB/T 28410-2012, mass fraction %)

Element Q345FT F (max or range)
Grade Q345FT F
C (max) 0.20
Mn 0.90~1.65
P (max) 0.020
S (max) 0.010
Si (max) 0.50
Nb (max) 0.060
V (max) 0.12
Ti (max) 0.050
Mo (max) 0.20
Cr (max) 0.30
Ni (max) 0.50
Cu (max) 0.30
Als (min) 0.015
N (max) 0.010
Note: The lower limit of Mn content for normalized plates as specified.

Quality & Manufacturing Assurance

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Modern Production

Advanced continuous casting and controlled rolling

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In-process Inspection

Spectral analysis, UT testing

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Full Documentation

MTC EN 10204 3.1/3.2

ISO 9001:2015 CE Marking (PED) SGS Inspection Mill Certificate 3.1

Packaging & Logistics

  • Standard Packaging: Steel plates bundled with steel straps on wooden skids. Coils wrapped with waterproof paper.
  • Marking: Grade, size, heat number, weight clearly marked.
  • Logistics: FOB, CIF, CFR from main Chinese ports.
  • Lead Time: 25-35 days after order confirmation.

Request a Quotation

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Frequently Asked Questions

What is the advantage of Q345FTF over Q345FTE?

Q345FTF offers the highest low-temperature toughness grade with guaranteed -50°C impact energy (34J), compared to -40°C for Q345FTE. It is specifically designed for extreme arctic, Antarctic, and permafrost regions.

Is Q345FTF suitable for polar wind farms?

Yes, its guaranteed -50°C impact toughness makes it the ideal choice for wind turbine towers in the Arctic Circle, Antarctic research stations, and other extreme cold environments.

MOQ?

25MT for plates, 50MT for coils. Flexible for trial orders.

Third-party inspection?

SGS, BV, TÜV available upon request.

For immediate inquiries, contact via WhatsApp. For detailed specs, visit the product page.
✅ Q345FTF (Grade F, -50°C impact, 34J) · GB/T 28410-2012 · Mill certificate included