API 5L X52 is a commonly used pipeline steel pipe with a service temperature range of -50℃ to 400℃. This temperature range is suitable for most conventional applications, including the transportation of fluids such as natural gas and oil. In more extreme environments, such as extremely cold or high temperature conditions, special materials or special treatments may be required.
Its chemical composition and mechanical properties are as follows:
Chemical Composition of API 5L X52 PSL2 Pipes with t ≤ 0.984"
|
Steel Grade |
Mass fraction, % based on heat and product analyses |
Carbon Equiv a |
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|
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
Other |
CE IIW |
CE Pcm |
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|
max b |
max |
max b |
max |
max |
max |
max |
max |
max |
max |
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|
Seamless and Welded Pipe |
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|
X52N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
0.04 |
d,e,l |
0.43 |
0.25 |
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|
X52Q |
0.18 |
0.45 |
1.5 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
e,l |
0.43 |
0.25 |
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|
Welded Pipe |
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|
X52M |
0.22 |
0.45 |
1.4 |
0.025 |
0.015 |
d |
d |
d |
e,l |
0.43 |
0.25 |
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Mechanical Properties Tensile and Yield of API 5L X52 PSL2 Line Pipe
|
Pipe Grade |
Tensile Properties – Pipe Body of SMLS and Welded Pipes PSL 2 |
Seam of Welded Pipe |
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|
Yield Strength a |
Tensile Strength a |
Ratio a,c |
Elongation |
Tensile Strength d |
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|
Rt0,5 PSI Min |
Rm PSI Min |
R10,5IRm |
(in 2in) |
Rm (psi) |
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|
Af % |
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|
Minimum |
Maximum |
Minimum |
Maximum |
Maximum |
Minimum |
Minimum |
|
|
X52N,X52Q,X52M |
52,200 |
76,900 |
66,700 |
110,200 |
0.93 |
f |
66,700 |
These performance parameters ensure that API 5L X52 pipeline steel pipe has good mechanical properties and stability in the temperature range of -46℃ to 60℃.
