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Description

Spain UNE P355Q Spain structural alloy steel and P355Q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: P355Q
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel P355Q UNE Spain Spain structural alloy steel
X8Ni9
P355M
P355ML1
P355ML2
P420M
P420ML1
P420ML2
P460M
P460ML1
P460ML2

Chemical composition(mass fraction)(wt.%) of the P355Q

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.16 0.4 1.5 0.025 0.015 0.3 0.5 0.25

Mechanical Properties of steel grade P355Q

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)
486 (≥) 532 (≥) 13 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade P355Q

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 - -     0.21 -  
347 575 - 14.3 213   -  
873 - 34 42.2   321 134

Heat Treatment of steel grade P355Q

Heat treated : 1514°C - 1524°C

Technological Curves of steel grade P355Q

Cross Reference Table (Equivalent Grade) of P355Q

Grade Standard Country Application
P355Q UNE Spain Spain structural alloy steel
P355QH UNE Spain Spain structural alloy steel
P355QL1 UNE Spain Spain structural alloy steel
P355QL2 UNE Spain Spain structural alloy steel
P355QH1 UNE Spain Spain structural alloy steel
EN P355QH EN Euronorm Euronorm Structural steel
EN P355Q EN Euronorm Euronorm Structural steel
EN P355QH EN Euronorm Euronorm Structural steel
EN P355QL1 EN Euronorm Euronorm Structural steel
EN P355QL2 EN Euronorm Euronorm Structural steel

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