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China GB Q550FTD 风力发电塔用结构钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q550FTD / Q550FTD
Category Grade Standard Region/Area Standard Content
Metals Q550FTD GB/T 28410 China 风力发电塔用结构钢板

Chemical composition(mass fraction)(wt.%) of the Q550FTD

Element Min Max Similar

Mechanical Properties of steel grade Q550FTD

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
546 (≥) 216 (≥) 14 31 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade Q550FTD

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
31 - -     0.42 -  
159 244 - 12.3 323   -  
647 - 14 13.2   113 144

Heat Treatment of steel grade Q550FTD

Heat treated : 1214°C - 1211°C

Technological Curves of steel grade Q550FTD

Cross Reference Table (Equivalent Grade) of Q550FTD

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