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PSL2 Grade L290Q

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China GB PSL2GradeL290Q 石油天然气工业 管线输送系统用钢管( and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: PSL2GradeL290Q / PSL2 Grade L290Q
Category Grade Standard Region/Area Standard Content
Metals PSL2 Grade L290Q GB/T 9711 China 石油天然气工业 管线输送系统用钢管(

Chemical composition(mass fraction)(wt.%) of the PSL2 Grade L290Q

Element Min Max Similar
Ti - 0.0400 -
Nb - 0.0500 -
V - 0.0500 -
S - 0.0150 -
P - 0.0250 -
Mn - 1.4000 -
Si - 0.4500 -
C - 0.1800 -

Mechanical Properties of steel grade PSL2 Grade L290Q

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)
285 (≥) 854 (≥) 42 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical Properties of steel grade PSL2 Grade L290Q

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
43 - -     0.23 -  
287 472 - 32.3 421   -  
898 - 41 41.2   321 124

Heat Treatment of steel grade PSL2 Grade L290Q

Heat treated : 1742°C - 1876°C

Technological Curves of steel grade PSL2 Grade L290Q

Cross Reference Table (Equivalent Grade) of PSL2 Grade L290Q

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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