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1.8878 + QT

EU EN 1.8878+QT 固定近海结构的可焊接结构钢 - 交货技术条件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 1.8878+QT / 1.8878 + QT
Category Grade Standard Region/Area Standard Content
Metals 1.8878 + QT EN 10225 EU 固定近海结构的可焊接结构钢 - 交货技术条件

Chemical composition(mass fraction)(wt.%) of the 1.8878 + QT

Element Min Max Similar

Mechanical Properties of steel grade 1.8878 + QT

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)
547 (≥) 656 (≥) 42 33 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade 1.8878 + QT

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
44 - -     0.41 -  
573 843 - 31.3 141   -  
576 - 42 34.2   241 332

Heat Treatment of steel grade 1.8878 + QT

Heat treated : 1223°C - 1762°C

Technological Curves of steel grade 1.8878 + QT

Cross Reference Table (Equivalent Grade) of 1.8878 + QT

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