Q345FTC steel plate for wind power tower

1. Q345FTC steel plate is a steel for wind power tower. When the steel plate is required to have thickness direction performance, the symbols Z15, Z25, Z35 representing the function level in the thickness direction shall be added after the grade.

Q345FTC steel grade analysis: Q is the first letter of the Chinese pinyin for the yield strength of steel for wind towers, 345 is the lower limit of the yield strength, in Mpa, F is the first letter of the wind Chinese pinyin, and T is the first letter of the pinyin of the tower.

2. Surface quality of Q345FTC steel plate:
1) The surface of the steel plate must not have bubbles, scars, cracks, folds, inclusions, pressed into the iron oxide scale, and the steel plate must not have delamination.

2) The surface of the steel plate is allowed to have a thin layer of iron oxide scale, rust, insignificant surface roughness, scratches, indentation and other local defects caused by the peeling of pressed iron oxide scale that does not hinder the inspection of surface defects, but the depth is not greater than half of the thickness tolerance. The minimum thickness of the steel plate should be ensured.

3. Chemical composition of Q345FTC wind tower steel plate:

C	Mn	P	S	Si	Nb	V	Ti	Mo	Cr	Ni
0.20	0.90-1.65	0.025	0.015	0.50	0.060	0.12	0.050	0.20	0.30	0.50

4. Mechanical properties of Q345FTC wind tower steel plate:

Grade	Yield strength	Tensile strength	Elongation after fracture	Impact absorption energy	180°bending test
Q345FTC	345	470-630	21	47	D=2A

5. Delivery status of Q345FTC steel plate:
Q345FTC wind tower steel plates are delivered in the state of controlled rolling, normalizing, normalizing rolling, and TMCP+tempering.

6. Practical application of Q345FTC steel plate:
Q345FTC steel plate can be used in construction machinery, such as drilling rigs, electric shovel, electric wheel dump trucks, mining trucks, excavators, loader pushers, various cranes, bright mining hydraulic supports and other machinery used in mines and various engineering constructions. Equipment and other structural parts, wind power installation, steel structure, hydropower project wind power tower.

7. The structural steel plate grades for wind power towers are: Q235FTB, Q235FTC, Q235FTD, Q235FTE, Q275FTC, Q275FTD, Q275FTE, Q275FF, Q345FTC, Q345FTD, Q345FTE, Q345FTF, Q420FTC.

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