Grade L290NB
1.0484
Corresponding Standard NF EN 10253-2-2007
Butt-welding pipe fittings- Part 2: Non alloy and ferritic alloy steels with specific inspection requirements
Classification Alloy Steel
L290NB Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo N Ti V Nb Al More
Minimum Value - - - - - - - - - - - - - 0.015 CEV:
≤ 0.42
AI / N:
≤ 2
Maximum Value 0.17 0.4 1.2 0.025 0.02 0.3 0.3 0.25 0.1 0.012 0.04 0.05 0.05 0.06
L290NB Mechanical Properties
thickness
T
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Impact Energy Absorption
KV2
J
T ≤ 16 +N ≥415 290~440 l: ≥ 23; t: ≥ 21 0℃: l: ≥ 60; t: ≥ 40
16<T ≤ 40 +N - 290~440 l: ≥ 23; t: ≥ 21 0℃: l: ≥ 60; t: ≥ 40
L290NB Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!