Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe
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seamless steel pipe line


Line seamless steel pipe

Implementation of the standards:

API SPEC 5L - American Petroleum Institute 
GB/T9711.2-- China national standards
Line pipe for seamless steel pipe

Use

Pipeline seamless steel tubes for oil, natural gas industry, oxygen, water, oil pipeline

Major brands

B, X42, X52, X60, X65, X70
Steel grade (GB/T9711.1) L175 (Ⅰ, Ⅱ class) L210 L245 L290 L320 L360 L390 L415 L450 L485 L555
Steel grade (ANSI / API Spec 5L) A25 (Ⅰ, Ⅱ class) A B X42 X46 X52 X56 X60 X65 X70 X80
Specified total elongation stress Rt0.5 (min) Mpa 175 210 245 290 320 360 390 415 450 485 555
Tensile strength (min) Mpa 315 335 415 415 435 460 490 520 535 570 625

 

Chemical composition

Standard
Trademark
Chemical Composition (%)
CEV (%)
C
Si
Mn
P
S
V
Nb
Ti
API SPEC 5L
GB/T9711.2
B
≤ 0.16
≤ 0.40
≤ 1.10
≤ 0.020
≤ 0.010
-
-
-
≤ 0.42
X42
≤ 0.17
≤ 0.40
≤ 1.20
≤ 0.020
≤ 0.010
≤ 0.05
≤ 0.05
≤ 0.04
≤ 0.42
X52
≤ 0.20
≤ 0.45
≤ 1.60
≤ 0.020
≤ 0.010
≤ 0.10
≤ 0.05
≤ 0.04
≤ 0.45
X60
≤ 0.21
≤ 0.45
≤ 1.60
≤ 0.020
≤ 0.010
≤ 0.15
≤ 0.05
≤ 0.04
Agreement
X65
≤ 0.16
≤ 0.45
≤ 1.60
≤ 0.020
≤ 0.010
≤ 0.06
≤ 0.05
≤ 0.06
≤ 0.45
X70
≤ 0.16
≤ 0.45
≤ 1.70
≤ 0.020
≤ 0.010
≤ 0.06
≤ 0.05
≤ 0.06
≤ 0.45

seamless steel pipe line

API SPEC 5L line pipe product specifications sheet

Nominal 
size
Outside diameter 
D
Wall thickness 
T
Calculated weight
Flat end
Threaded and coupling
in
mm
in
mm
lb / ft
kg / m
lb
kg
2-3/8
2.375
60.3
0.154
3.9
3.66
5.42
1.20
0.54
2.375
60.3
0.218
5.5
5.03
7.43
1.09
0.50
2-7/8
2.875
73.0
0.203
5.2
5.80
8.69
1.80
0.82
2.875
73.0
0.276
7.0
7.67
11.39
1.57
0.71
3-1/2
3.500
88.9
0.216
5.5
7.58
11.31
1.80
0.82
3.500
88.9
0.300
7.6
10.26
15.24
1.76
0.80
4
4.000
101.6
0.226
5.7
9.12
13.48
3.20
1.45
4.000
101.6
0.318
8.1
12.52
18.68
3.00
1.36
4-1/2
4.500
114.3
0.237
6.0
10.80
16.02
4.40
2.00
4.500
114.3
0.337
8.6
15.00
22.42
3.99
1.81
5-9/16
5.563
141.3
0.258
6.6
14.63
21.92
5.60
2.54
5.563
141.3
0.375
9.5
20.80
30.88
4.94
2.44
6-5/8
6.625
168.3
0.280
7.1
18.99
28.22
7.20
3.27
6.625
168.3
0.432
11.0
28.60
42.67
5.65
2.56
8-5/8
8.625
219.1
0.277
7.0
24.72
36.61
14.80
6.72
8.625
219.1
0.322
8.2
28.58
42.65
14.00
6.36
8.625
219.1
0.500
12.7
43.43
64.64
11.74
5.20
10-3/4
10.750
273.1
0.279
7.1
31.23
46.57
20.00
9.08
10.750
273.1
0.307
7.8
34.27
51.03
19.20
8.72
10.750
273.1
0.365
9.3
40.52
60.50
17.40
7.90
10.750
273.1
0.500
12.7
54.79
81.55
15.32
6.95

 

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