Chinese standard GB/T 9711 is the equivalent of the America standard API 5L. Product Specification Level includes PSL1 and PSL2. The size of pipeline is from 38mm to 720mm(1.5 in. ~28 in.). IMRISTEEL can also process anti-corrosion coating on the surface of the pipe such as 3LPE, 3LPP and FBE coating. Pipeline pipe is our company’s most dominant product. We used to provide line pipe to the Shell. If you are in need, please contact [email protected] to get the prompt quote.
Specifications
Standard | GB/T 9711 |
Steel Grade/Material | L290/X42, L320/X46, L360/X52, L390/X56, L415/X60, L450/X65, L485/X70 |
PSL level | PSL2 |
Outer Diameter(OD) | 1 1/2”-28”(38mm-720mm) |
Wall Thickness(WT) | 2.6mm-60mm |
Length | 5.8-16m or OEM |
Packing | PE,BE,Plastic cap or bundling |
Surface Treatmengt | Black paint,3LPE,3lPP,FBE…OEM |
Section Shape | Round |
Technique | Seamless hot rolled |
Application | Oil and Gas field,chemical engineering,energy engineering,water Transportation… |
Sour service | No |
Place of Origin | China |
MOQ | 25 ton |
Transportation | 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port →America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea, Australia…(shipping) 2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”) |
W.T.≤25.0mm(0.984in) PSL2 Pipe line Chemical Composition(%) | ||||||||||
Grade | C | Si | Mn | P | S | V | Nb | TI | CEIIW | CEPcm |
BR | ≤0.024 | ≤0.4 | ≤1.2 | ≤0.025 | ≤0.015 | a | a | ≤0.04 | ≤0.043 | ≤0.25 |
L290R/X42R | ≤0.024 | ≤0.4 | ≤1.2 | ≤0.025 | ≤0.015 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
BN | ≤0.024 | ≤0.4 | ≤1.2 | ≤0.025 | ≤0.015 | a | a | ≤0.04 | ≤0.043 | ≤0.25 |
L290N/X42N | ≤0.024 | ≤0.4 | ≤1.2 | ≤0.025 | ≤0.015 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L320N/X46N | ≤0.024 | ≤0.4 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L360N/X52N | ≤0.024 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L390/X56N | ≤0.024 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L415N | ≤0.024 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.10 | ≤0.05 | ≤0.04 | a | a |
BQ | ≤0.018 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L290Q/X42Q | ≤0.018 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L320Q/X46Q | ≤0.018 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L360Q/X52Q | ≤0.018 | ≤0.45 | ≤1.5 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L390/X56Q | ≤0.018 | ≤0.45 | ≤1.5 | ≤0.025 | ≤0.015 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
L415Q/X60Q | ≤0.018 | ≤0.45 | ≤1.7 | ≤0.025 | ≤0.015 | a | a | a | ≤0.043 | ≤0.25 |
L450Q/X65Q | ≤0.018 | ≤0.45 | ≤1.7 | ≤0.025 | ≤0.015 | a | a | a | ≤0.043 | ≤0.25 |
L485Q/X70Q | ≤0.018 | ≤0.45 | ≤1.8 | ≤0.025 | ≤0.015 | a | a | a | a | a |
a: according to API standard or requirements |
PSL2 Pipe line Mechanical properties | ||||
Grade | Yield strength Rt0,5 Mpa(psi) | Tensile strength Rm Mpa(psi) | Rt0,5/Rm | Elongation 50mm or 2in |
BR/BN/BQ | 245(35500)-450(65300) | 415(60200)-655(95000) | ≤0.93 | Af |
L290R/L290N/L290Q (X42) | 290(42100)-495(71800) | ≥415(60200) | ≤0.93 | Af |
L320N/L320Q (X46) | 320(46400)-525(76100) | 435(63100)-655(95000) | ≤0.93 | Af |
L360N/L360Q (X52) | 360(52200)-530(76900) | 460(66700)-760(110200) | ≤0.93 | Af |
L390N/ L390Q (X56) | 390(56600)-545(79000) | 490(71100)-760(110200) | ≤0.93 | Af |
X60N/X60Q (X60) | 415(60200)-565(81900) | 520(75400)-760(110200) | ≤0.93 | Af |
L450Q (X65) | 450(65300)-600(87000) | 535(77600)-760(110200) | ≤0.93 | Af |
L485Q (X70) | 485(70300)-635(92100) | 570(82700)-760(110200) | ≤0.93 | Af |
Tolerance of pipe size | |||
Pipe Body (straightness) | Pipe end (straightness) | Pipe Body (roundness) | Pipe end (roundness) |
-0.8(0.031),+0.4(0.016) | -0.8(0.031),+0.4(0.016) | 1.2(0.048) | 0.9(0.036) |
±0.0075D | -0.4(0.016),P5 | 0.02D | 0.015D |
±0.0075D | ±0.005D,Max±1.6(0.063) | 0.02D | 0.015D |
±0.0.01D | ±2.0 | 0.015D,Max 15(0.6) | 0.01D,Max 13(0.5) |
Tolerance of wall thickness | |
Wall thickness t mm(in) | Tolerance mm(in) |
t≤4(0.157) | +0.6(0.024);-0.5(0.02) |
4(0.157)<t<25(0.984) | +0.15t;-0.125t |
t≥25(0.984) | +3.7(0.146) or +0.1t,larger value; -3.0(0.12) or -0.1t,larger value |