Q460FTF Polar‑Grade Wind Power Steel

GB/T 28410-2012 | 460MPa Yield | -50°C Impact (34J) – Extreme Arctic Toughness

📏 Standard: GB/T 28410-2012
🏗️ Arctic/Antarctic mega‑towers
❄️ -50°C Impact 34J (Grade F)
💪 Yield ≥460 MPa (≤16mm)

Product Overview

This article introduces Q460FTF 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. Q460FTF is a high‑strength low‑alloy steel plate offering 460 MPa minimum yield, the highest low‑temperature toughness at -50°C (Grade F, 34J), and complies with GB/T 28410‑2012 for wind tower construction in extreme arctic environments requiring maximum cold resistance.

📊 Q460FTF Approximate Grade Lookup Table

Key Advantages

  • Highest Low‑Temperature Toughness: Guaranteed 34J at -50°C (Grade F) – suitable for Arctic, Antarctic, and permafrost regions.
  • High Strength: Minimum yield 460 MPa (≤16mm) for heavier loads and taller towers.
  • Superior Purity: Low P (≤0.020) and S (≤0.010) for enhanced low‑temperature performance.
  • Enhanced Alloy Design: Mo≤0.30, Cr≤0.60, Ni≤0.80, Cu≤0.55 for improved strength and hardenability.
  • Optimized Weldability: Low carbon (C≤0.20) and micro‑alloying (Nb, V, Ti) for excellent field welding.

Technical Specifications

Q460FTF Chemical Composition (GB/T 28410-2012, mass fraction %)

Grade Class C ≤ Mn P ≤ S ≤ Si ≤ Nb ≤ V ≤ Ti ≤ Mo ≤ Cr ≤ Ni ≤ Cu ≤ Als ≥ N ≤
Q460FT F 0.20 1.00~1.70 0.020 0.010 0.60 0.070 0.15 0.050 0.30 0.60 0.80 0.55 0.015 0.010
Note: The lower limit of Mn content for steel plates delivered in normalized condition shall be as specified in the table. No lower limit of Mn content shall be required for steel plates delivered in other conditions.

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 main advantage of Q460FTF over Q460FTE?

Q460FTF guarantees impact toughness at -50°C (34J) compared to -40°C for Q460FTE, making it the highest toughness grade. It is essential for Arctic, Antarctic, and other environments below -40°C.

Is Q460FTF suitable for offshore wind in polar regions?

Absolutely. Its -50°C impact toughness meets the most stringent requirements for offshore wind projects in the Arctic Ocean, Barents Sea, and Antarctic research stations.

What is the MOQ for Q460FTF plates?

25MT for plates, 50MT for coils. Trial orders (10-15MT) may be accepted after discussion.

Third-party inspection available?

SGS, BV, TÜV inspection can be arranged at extra cost; mill certificate EN 10204 3.1 is always included.

For immediate inquiries, contact via WhatsApp. For detailed specs, visit the product page.
✅ Q460FTF (Grade F, -50°C impact, 34J) · GB/T 28410-2012 · Mill certificate included