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International ISO L290 Petroleum and natural gas industries - Steel pipe for pipelines - Technical delivery conditions - Part 1: Pipes of requirement class A and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: L290 / L290
Category Grade Standard Region/Area Standard Content
Metals L290 ISO 3183-1 International Petroleum and natural gas industries - Steel pipe for pipelines - Technical delivery conditions - Part 1: Pipes of requirement class A

Chemical composition(mass fraction)(wt.%) of the L290

Element Min Max Similar
S - 0.0300 -
P - 0.0300 -
Mn - 1.2500 -
C - 0.2900 -

Mechanical Properties of steel grade L290

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)
774 (≥) 911 (≥) 41 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade L290

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
41 - -     0.32 -  
734 536 - 34.3 142   -  
774 - 42 21.2   331 134

Heat Treatment of steel grade L290

Heat treated : 1218°C - 1914°C

Technological Curves of steel grade L290

Cross Reference Table (Equivalent Grade) of L290

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