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EU EN L290MB 易燃液体输送管线 - 钢管交货技术条件 - 第2部分:B级要求的管道 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: L290MB / L 290 MB
Category Grade Standard Region/Area Standard Content
Metals L 290 MB EN 10208-2 EU 易燃液体输送管线 - 钢管交货技术条件 - 第2部分:B级要求的管道

Chemical composition(mass fraction)(wt.%) of the L 290 MB

Element Min Max Similar

Mechanical Properties of steel grade L 290 MB

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)
757 (≥) 697 (≥) 42 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade L 290 MB

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
23 - -     0.43 -  
751 451 - 21.3 343   -  
558 - 32 24.2   441 341

Heat Treatment of steel grade L 290 MB

Heat treated : 1599°C - 1864°C

Technological Curves of steel grade L 290 MB

Cross Reference Table (Equivalent Grade) of L 290 MB

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