The steel grades of seamless steel pipes specified in API 5L standard include X42, X46, X52, X56, X60, X65, X70, etc. According to their applications, they can be divided into onshore pipeline steel pipes and submarine pipeline steel pipes.IMRI has extensive experience in supplying steel tubes to large oil and gas projects at home and abroad and has designed different coatings for these steel pipes according to the environment in which they are used.
Specifications
Standard | API 5L latest edition |
Steel Grade/Material | X42,X46,X52,X56,X60,X65,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 |
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 |
X42N | ≤0.024 | ≤0.4 | ≤1.2 | ≤0.025 | ≤0.015 | ≤0.06 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X46N | ≤0.024 | ≤0.4 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X52N | ≤0.024 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X56N | ≤0.024 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.10 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X60N | ≤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 |
X42Q | ≤0.018 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X46Q | ≤0.018 | ≤0.45 | ≤1.4 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X52Q | ≤0.018 | ≤0.45 | ≤1.5 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X56Q | ≤0.018 | ≤0.45 | ≤1.5 | ≤0.025 | ≤0.015 | ≤0.07 | ≤0.05 | ≤0.04 | ≤0.043 | ≤0.25 |
X60Q | ≤0.018 | ≤0.45 | ≤1.7 | ≤0.025 | ≤0.015 | a | a | a | ≤0.043 | ≤0.25 |
X65Q | ≤0.018 | ≤0.45 | ≤1.7 | ≤0.025 | ≤0.015 | a | a | a | ≤0.043 | ≤0.25 |
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 |
X42R/X42N/X42Q | 290(42100)-495(71800) | ≥415(60200) | ≤0.93 | Af |
X46N/X46Q | 320(46400)-525(76100) | 435(63100)-655(95000) | ≤0.93 | Af |
X52N/X52Q | 360(52200)-530(76900) | 460(66700)-760(110200) | ≤0.93 | Af |
X56N/X56Q | 390(56600)-545(79000) | 490(71100)-760(110200) | ≤0.93 | Af |
X60N/X60Q | 415(60200)-565(81900) | 520(75400)-760(110200) | ≤0.93 | Af |
X65Q | 450(65300)-600(87000) | 535(77600)-760(110200) | ≤0.93 | Af |
X70Q | 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 |