API SPEC 5L Steel Pipe

1.main steel model B ,X42,X52,X60,X65,X70
2.high quality
3.competitive price


Dimension Tolerance:

Steel Pipe Specification
Steel Pipe Outside DiameterD
Steel Pipe Wall ThicknessS
Pipe Body
Steel Pipe Outside Diameter (mm)
Allowable deviation (mm)
Steel Pipe Outside Diameter (mm)
Allowable Deviation (mm)
≥60.3S20
±0.75
≤73.0
15,12.5
≥60.3S≥20
±1.00
73.0S20
15,12.5


73.0S≥20
17.5,10

Mechanical Property

Standard
Model
Tensile StrengthMPa
Yield StrengthMPa
Yield Strength Ratio
Tensile Stretch
Ballistic Work AkvJ
Heat Treatment State
API SPEC 5L
GB/T9711.2
B
≥415
245440
≤0.80
22
≥40
normalizing
X42
≥415
290440
≤0.80
21
≥40
normalizing
X52
≥460
360510
≤0.85
20
≥40
normalizing
X60
≥520
415565
≤0.85
18
≥40
normalizing
X65
≥535
450570
≤0.90
18
≥40
quencher backfire
X70
≥570
485605
≤0.90
18
≥40
quencher backfire

Mechanical Property:

Standard
Model
Chemical Constituent
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

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

Notice
1.0.015≤Altot0.06N≤0.012Al/N≥2/1Cu≤0.25Ni≤0.30Cr≤0.30Mo≤0.10
2.VNbTi≤0.15