As energy infrastructure expands into more challenging environments, the need for high-strength, reliable pipeline materials continues to grow. Among the advanced steel grades available today, API 5L PSL2 X80Q line pipe stands out as a top choice for high-pressure, long-distance oil and gas transmission systems.
Engineered to meet the rigorous requirements of PSL2 (Product Specification Level 2), X80Q offers superior tensile strength, excellent toughness, and enhanced resistance to deformation and corrosion. These attributes make it particularly well-suited for complex terrains, harsh climates, and demanding operational conditions found in modern pipeline projects.
Union Steel Industry Co., Ltd is professional steel pipes manufacturer, for more details, please contact:sales@union-steels.com
Specification for API 5L Line Pipe
|
Material Grade
|
PSL1
|
L175 or A25
|
L210 or A
|
L290 or x42
|
L360 or x52
|
|
L175P or A25P
|
L245 or B
|
L320 or x46
|
L390 or x56
|
|
L415 or x60
|
L450 or x65
|
L485 or x70
|
|
|
Material Grade
|
PSL2
|
L245R or BR
|
L245N or BN
|
L245Q or BQ
|
L450Q or X65Q
|
|
L290R or X42R
|
L290N or X42N
|
L290Q or X42Q
|
L485Q or X70Q
|
|
|
L320N or X46N
|
L320Q or X46Q
|
L555Q or X80Q
|
|
|
L360N or X52N
|
L360Q or X52Q
|
L625Q or X90Q
|
|
|
L390N or X56N
|
L390Q or X56Q
|
L690Q or X100Q
|
|
|
L415N or X60N
|
L415Q or X60Q
|
|
|
L245M or BM
|
L450M or X65M
|
|
|
|
L290M or X42M
|
L485M or X70M
|
|
|
|
L320M or X46M
|
L555M or X80M
|
|
|
|
L360M or X52M
|
L625M or X90M
|
|
|
|
L390M or X56M
|
L690M or X100M
|
|
|
|
L415M or X60M
|
L830M or X120M
|
|
|
|
Size
|
1/2''~72''
|
|
Thickness
|
SCH5~SCHXXS
|
|
End
|
Beveled End,Plain End
|
|
Length
|
As per your requirement.
|
|
Packing
|
Export Standard packing or as per your requirements.
|
API 5L PSL2 X80Q Line Pipes Chemical Composition For PSL 2 Pipe With T ≤ 0.984 "
|
Steel grade
|
Mass ratio,% based on heat and product descriptions
|
Carbon Equiv a
|
|
C
|
Si
|
Ma
|
P
|
S
|
V
|
Nb
|
T
|
Other
|
CE IIW
|
Ce pcm
|
|
Max b
|
max
|
Max b
|
max
|
max
|
max
|
max
|
max
|
max
|
max
|
|
Seamless and boiled pipe
|
|
Br
|
0.24
|
0.4
|
1.2
|
0.025
|
0.015
|
c
|
c
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X42r
|
0.24
|
0.4
|
1.2
|
0.025
|
0.015
|
0.06
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
BN
|
0.24
|
0.4
|
1.2
|
0.025
|
0.015
|
c
|
c
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X42N
|
0.24
|
0.4
|
1.2
|
0.025
|
0.015
|
0.06
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X46N
|
0.24
|
0.4
|
1.4
|
0.025
|
0.015
|
0.07
|
0.05
|
0.04
|
d, e, l
|
0.043
|
0.25
|
|
X52n
|
0.24
|
0.45
|
1.4
|
0.025
|
0.015
|
0.1
|
0.05
|
0.04
|
d, e, l
|
0.043
|
0.25
|
|
X56N
|
0.24
|
0.45
|
1.4
|
0.025
|
0.015
|
0.10f
|
0.05
|
0.04
|
d, e, l
|
0.043
|
0.25
|
|
X60N
|
0.24f
|
0.45F
|
1.40F
|
0.025
|
0.015
|
0.10f
|
0.05F
|
0.04F
|
g, h, l
|
As agreed upon
|
|
Bq
|
0.18
|
0.45
|
1.4
|
0.025
|
0.015
|
0.05
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X42q
|
0.18
|
0.45
|
1.4
|
0.025
|
0.015
|
0.05
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X46q
|
0.18
|
0.45
|
1.4
|
0.025
|
0.015
|
0.05
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X52q
|
0.18
|
0.45
|
1.5
|
0.025
|
0.015
|
0.05
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X56q
|
0.18
|
0.45F
|
1.5
|
0.025
|
0.015
|
0.07
|
0.05
|
0.04
|
e, l
|
0.043
|
0.25
|
|
X60q
|
0.18f
|
0.45F
|
1.70F
|
0.025
|
0.015
|
g
|
g
|
g
|
h, l
|
0.043
|
0.25
|
|
X65q
|
0.18f
|
0.45F
|
1.70F
|
0.025
|
0.015
|
g
|
g
|
g
|
h, l
|
0.043
|
0.25
|
|
X70q
|
0.18f
|
0.45F
|
1.80F
|
0.025
|
0.015
|
g
|
g
|
g
|
h, l
|
0.043
|
0.25
|
|
X80q
|
0.18f
|
0.45F
|
1.90F
|
0.025
|
0.015
|
g
|
g
|
g
|
i, j
|
As agreed upon
|
|
X90q
|
0.16f
|
0.45F
|
1.9
|
0.02
|
0.01
|
g
|
g
|
g
|
J, k
|
As agreed upon
|
|
X100q
|
0.16f
|
0.45F
|
1.9
|
0.02
|
0.01
|
g
|
g
|
g
|
J, k
|
As agreed upon
|
Mechanical Traits of API 5L PSL2 X80Q Line Pipes
|
Pipe Grade
|
Fluid activity - Pipe Body of SMLS and curved pipes PSL 2
|
Seam of Welded Pipe
|
|
A yield of a
|
A tensile strength a
|
Ratio of a, c
|
Elongation
|
Togling strength d
|
|
RT0.5 psi min
|
Rm psi min
|
R10.5irm
|
(in 2 in)
|
Rm (psi)
|
|
|
|
|
Of%
|
|
|
Minimum
|
Maximum
|
Minimum
|
Maximum
|
Maximum
|
Minimum
|
Minimum
|
|
Br, BN, BQ, BM
|
35.500
|
65.300
|
60.200
|
95.000
|
0.93
|
f
|
60.200
|
|
X42, X42R, X2Q, X42M
|
42.100
|
71.800
|
60.200
|
95.000
|
0.93
|
f
|
60.200
|
|
X46N, X46Q, X46M
|
46.400
|
76,100
|
63,100
|
95.000
|
0.93
|
f
|
63,100
|
|
X52N, X52Q, X52M
|
52.200
|
76.900
|
66.700
|
110.200
|
0.93
|
f
|
66.700
|
|
X56N, X56Q, X56M
|
56.600
|
79.000
|
71.100
|
110.200
|
0.93
|
f
|
71.100
|
|
X60N, X60Q, S60M
|
60.200
|
81.900
|
75.400
|
110.200
|
0.93
|
f
|
75.400
|
|
X65q, x65m
|
65.300
|
87.000
|
77.600
|
110.200
|
0.93
|
f
|
76.600
|
|
X70q, x65m
|
70.300
|
92,100
|
82.700
|
110.200
|
0.93
|
f
|
82.700
|
|
X80q, x80m
|
80, .500
|
102.300
|
90.600
|
119.700
|
0.93
|
f
|
90.600
|
API 5L PSL2 X80Q Line Pipes Tolerances:
Out of diameter, out of the way around and wall thickness
|
Specified external diameter D (i)
|
Diameter Tolerance, Inches d
|
Outlets in
|
|
Pipe except the end of a
|
Pipe End A, B, C
|
Pipe except the end of a
|
Pipe End A, B, C
|
|
SMLS Pipe
|
The length pipe
|
SMLS Pipe
|
The length pipe
|
|
<>
|
-0,031 to + 0.016
|
- 0.031 to + 0.016
|
0.048
|
0.036
|
|
≥2.375 to 6,625
|
|
|
0.020d for
|
0.015d for
|
|
+/- 0.0075d
|
- 0.016 to + 0.063
|
|
|
|
|
|
By agreement on
|
By agreement on
|
|
|
|
|
|
|
> 6,625 to 24,000
|
+/- 0.0075d
|
+/- 0.0075d, but peak 0.125
|
+/- 0.005d, but peak 0.063
|
0.020d
|
0.015d
|
|
> 24 to 56
|
+/- 0.01d
|
+/- 0.005D but peak 0.160
|
+/- 0.079
|
+/- 0.063
|
0.015D for but maximum 0.060
|
0.01D for but maximum 0.500
|
|
Ago
|
Ago
|
|
|
|
|
By agreement
|
By agreement
|
|
ago
|
ago
|
|
|
|
|
> 56
|
As agreed upon
|
|
a. The pipeline has 4 lengths in ate on each side
|
|
b. For SMLS pipe applies tolerance for t≤0.984in and tolerance for the thicker pipe should be as it is composed
|
|
c. For enlarged pipes with D8.82525 and for unnecessary pipes, endurance resistance and tolerant resistance can be determined by calculating internal diameter or measured interior diameter rather than specified OD.
|
|
d. In order to determine the diameter of diameter, the pipe diameter is defined as the circumference of the pipe in each traffic plan that is divided by PI.
|
|
wall thick
|
Tolerances a
|
|
t inches
|
inches
|
|
Smls pipe b
|
|
≤ 0.157
|
-1.2
|
|
> 0.157 to <>
|
+ 0.150t / - 0.125t
|
|
≥ 0.984
|
+ 0.146 or + 0.1t, whether bigger
|
|
- 0.120 or - 0.1t, whether bigger
|
|
Bend pipe c, d
|
|
≤ 0.197
|
+/- 0.020
|
|
> 0.197 to <>
|
+/- 0.1t
|
|
≥ 0.591
|
+/- 0.060
|
|
a. If the purchase order specifies the minus tolerance for the thickness of the thickness of less than the value laid down in this tablet, the tolerance for wall thickness should be increased by maintaining the current tolerance period.
|
|
b. For pipes with D≥ 14,000 in and T≥0.984in, the wall resistance load can localize the additional tolerance resistance for wall thickness with an additional 0.05 t provided that increased tolerance for mass is not exceeded.
|
|
c. Increased stamina for wall concentrate does not apply to the welding section
|
|
d. See the full API5L preview to get detailed information
|
Related: API 5L X80 carbon welded steel pipe
English
Español
Tel : +86-18565811709
Email : 
News
