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GB/T 9711-2017 Steel pipe for pipeline transportation system
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GB/T 9711-2017 Steel pipe for pipeline transportation system
Still deciding? Get samples first, Contact US !
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Product Description
GB/T 9711-2017 steel pipes are steel pipes for pipeline transportation systems in the oil and gas industry, including two product specification levels (PSL1 and PSL2), manufactured by processes such as hot forming or cold drawing.
Product Size
Outer diameter: NPS 1/2～24; 21.3～610mm
Wall thickness: SCH 20～160; 2.77～70.00mm
End: Flat end, beveled or threaded optional
Length: 3 to 12 meters or SRL, DRL, double and fixed feetProduct Packaging
External surfaces varnished clear/black, hot-dipped galvanized or anticorrosive treatment (FBE, 3LP, 3LPP) optional, steel strapping.
Product Mechanical Properties
PSL1 steel pipe mechanical property requirements
Steel grade
Seamless and welded pipe bodies
EW, LW, SAW, and Cow Pipe Welds
Yield strength Rt0.5 ≥, MPa(psi)
Tensile strength Rm ≥, MPa(psi)
Elongation Af ≥, %
Tensile strength Rm ≥, MPa(psi)
L175 (A25)
175(25,400)
310(45,000)
c
310(45,000)
L175P(A25P)
175(25,400)
310(45,000)
c
310(45,000)
L210(A)
210(30,500)
335(48,600)
c
335(48,600)
L245(B)
245(35,500)
415(60,200)
c
415(60,200)
L290(X42)
290(42,100)
415(60,200)
c
415(60,200)
L320(X46)
320(46,400)
435(63,100)
c
435(63,100)
L360(X52)
360(52,200)
460(66,700)
c
460(66,700)
L390(X56)
390(56,600)
490(71,100)
c
490(71,100)
L415(X60)
415(60,200)
520(75,400)
c
520(75,400)
L450(X65)
450(65,300)
535(77,600)
c
535(77,600)
L485(X70)
485(70,300)
570(82,700)
c
570(82,700)
PSL2 steel pipe mechanical property requirements
Steel grade Seamless and welded pipe bodies
HFW, SAW and COW Pipe Welds
Yield strength Rt0.5 ≥, MPa(psi)
Tensile strength Rm ≥, MPa(psi)
Ductility ratio Rto.₅/Rm
Elongation Af ≥, %
Tensile strength Rm ≥, MPa(psi)
min
max
min
max
max
max
min
L245R（BR）
L245N（BN）
L245Q（BQ）
L245M（BM）245
(35,500)450
(65,300)415 (60,200) 655 (95,000) 0.93
See product standards for details 415
(60,200)L290R（X42R）
L290N（X42N）
L290Q（X42Q）
L290M（X42M）290
(42.100)495
(71,800)415 (60,200) 655 (95,000) 0.93
415
(60,200)L320N（X46N）L320Q（X46Q）
L320M（X46M）320
(46,400)525
(76,100)435 (63.100) 655 (95,000) 0.93
435
(63.100L360N（X52N）
L360Q（X52Q）
L360M（X52M）360
(52,200)530
(76,900)460 (66,700) 760
(110,2000.93
460
(66,700)L390N（X56N）
L390Q（X56Q）
L390M（X56M）390
(56,600)545
(79,000)490 (71,100) 760 (110,200) 0.93
490
(71.100L415N（X60N）
L415Q（X60Q）
L415M（X60M）415
(60,200)565
(81,900)520 (75,400) 760 (110,200) 0.93
520
(75,400)L450Q（X65Q）
L450M（X65M）450
(65,300)600
(87,000)535 (77,600) 760 (110,200) 0.93
535
(77,600)L485Q（X70Q）
L485M（X70M）485
(70,300)635
(92,100)570 (82,700) 760 (110,200) 0.93
570
(82,700)L555Q（X80Q）
L555M（X80M）555
(80,500)705
(102,300)625 (90,600) 825 (119,700) 0.93
625(90,600) L625M（X90M）
625
(90,600)775
(112,400)695 (100,800) 915 (132,700) 0.95
695
(100,800)L625Q（X90Q）
625
(90,600)775
(112,400)695 (100,800) 915 (132,700) 0.979
L690M（X100M）
690
(100,100)840
(121,800)760 (110,200) 990 (143,600) 0.97
760
(110,200)L690Q（X100Q）
690
(100,100)840
(121,800)760 (110,200) 990 (143,600) 0.97
L830M（X120M）
830
(120,400)1050
(152,300)915 (132,700) 1145 (166,100) 0.99
915
(132,700)Application
Typically used in pipeline transportation systems in the oil and gas industry.
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E-mail: info@yantaipipe.cn
WhatsApp: 8615653819370
Tel: 0086-535-6281117
Add: No. 161 Changjiang Road, FTZ, Yantai , China