Q420FT steel plate for wind power tower

Q420FT plate is a kind of steel plate for wind power towers. The trademarks are Q420FTC, Q420FTD, Q420FTE and Q420FTF. When the steel plate is required to have the function in the thickness direction, the symbols Z15, Z25, Z35 are added to the grade. Q420FT steel implementation specification GB/T28410, corresponding to S420 in EN10025.

Chemical composition of Q420FT steel plate (mass fraction)/%:

C	Si	Mn	Nb	V	Ti	Mo	Cr	Ni
≤0.20	≤0.50	1.0-1.7	≤0.060	≤0.15	≤0.050	≤0.20	≤0.30	≤0.50

P≤0.025 and S≤0.015 for quality grades C and D, P≤0.02 and S≤0.01 for quality grades E and F.

Mechanical properties of Q420FT steel plate:
Tensile strength 470-630 Mpa
Yield strength (≥) 325 Mpa
Elongation (greater than) 21%
Shock Absorb Energy 47J

Delivery status of Q420FT steel plate
Q420FT steel plate is usually delivered in hot-rolled, controlled-rolled, normalized, TMCP, TMCP+tempered condition, and the steel plate should be delivered trimmed.

The grades of structural steel plates for wind power towers are: Q235FTB, Q235FTC, Q235FTD, Q235FTE, Q275FTC, Q275FTD, Q275FTE, Q275FTF, Q420FTC, Q420FTD, Q420FTE, Q420FTF, Q420FTC, Q420FTD, Q420FTE, Q420FTF, Q460FTC, Q460FTD, Q460FTE, Q460FTF , Q550FTD , Q550FTE, Q620FTD, Q620FTE, Q690FTD, Q690FTE, etc.

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