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L 290 MB

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France AFNOR NF 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 NF EN 10208-2 France 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
V - 0.0400 -
Si - 0.4500 -
S - 0.0200 -
P - 0.0250 -
Other - - -
Ni - 0.3000 -
Nb - 0.0400 -
N - 0.0120 -
Mo - 0.1000 -
Mn - 1.5000 -
Cu - 0.2500 -
Cr - 0.3000 -
CEV - 0.4000 -
C - 0.1600 -
Al 0.0150 0.0600 -

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)
827 (≥) 469 (≥) 21 32 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

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
14 - -     0.24 -  
136 455 - 44.3 411   -  
134 - 43 12.2   114 224

Heat Treatment of steel grade L 290 MB

Heat treated : 1582°C - 1146°C

Technological Curves of steel grade L 290 MB

Cross Reference Table (Equivalent Grade) of L 290 MB

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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