API 5L Line Pipe

API 5L LINE PIPE
OD:21.3mm-610mm
Wall Thickness:2.77mm-59.54mm

Product Details

Line pipe mainly used for transportation of gas, water oil. Sour service pipeline is intended for solving the problem of cracking and leakage caused by insufficient resistance to sulfide stress corrosion cracking and hydrogen induced cracking under acidic service environment when developing in acid oil and gas exploration.

 

Standards and technical terms of products

API SPEC 5L  Specification for line pipe

ISO 3183  Petroleum and natural gas industries-steel pipe for pipeline transportation system.

GB/T9711  Pipe line used for transport system in oil and gas industry

ASME B36.10 Welded and seamless wrought steel pipe

ANSI/NACE MR0175 Metals for sulfide stress cracking and stress corrosion cracking resistance in sour oilfield

ANSI/NACE TM0177 Laboratory testing of metal for resistance to sulfide stress cracking and stress Corrosion cracking  in H2S environment

ISO15156  Petroleum and natural gas industries -materials for use in H2S containing environment in oil and gas production

 

Size

 

OD:21.3mm-610mm

Wall Thickness:2.77mm-59.54mm

DN(mm) NPS(in) OD(mm) 10 20 30 STD/40 60 XS/80 100 120 140 160 XXS
15 1/2 21.3 2.77 3.73 4.78 7.47
20 3/4 26.7 2.87 3.91 5.56 7.82
25 1 33.4 3.38 4.55 6.35 9.09
32 1 1/4 42.2 3.58 4.85 6.35 9.70
40 1 1/2 48.3 3.68 5.08 7.14 1.015
50 2 60.3 3.91 5.54 8.74 11.07
65 2 1/2 73.0 5.16 7.01 9.53 14.02
80 3 88.9 5.49 7.62 11.13 15.24
90 3 1/2 101.6 5.74 8.08
100 4 114.3 6.02 8.56 11.13 13.49 17.12
125 5 141.3 6.55 9.53 12.70 15.88 19.05
150 6 168.3 7.11 10.97 14.27 18.26 21.95
200 8 219.1 6.35 7.04 8.18 10.31 12.70 15.08 18.26 20.62 23.01 22.23

 

Chemical composition

Grade Chemical composition/% Max
C Si Mn P S V Nb Ti
L245/B 0.28 – 1.20 0.030 0.030 – – –
L290/X42 0.28 – 1.30 0.030 0.030 – – –
L320/X46 0.28 – 1.40 0.030 0.030 – – –
L360/X52 0.28 – 1.40 0.030 0.030 – – –
L390/X56 0.28 – 1.40 0.030 0.030 – – –
L415/X60 0.28 – 1.40 0.030 0.030 – – –
L450/X65 0.28 – 1.40 0.030 0.030 – – –
L485/X70 0.28 – 1.40 0.030 0.030 – – –
Note: Date in the composition of PSL1:PSL2 The composition can be negotiated by both parties

 

 

Mechanical property requirements

Grade Yield strength/Mpa Yield strength/Mpa Yield ratio CVN/J
PSL1(Min) PSL2 PSL1(Min) PSL2 PSL1(Min) PSL2
-N,Q -NS,QS -N,Q -NS,QS -N,Q -NS,QS
L245/B 245 245~450 245~450 415 415~655 415~655 –  ≤0.93  ≤0.93 ≥27
L290/X42 2900 290~495 290~495 415 415~655 415~655 –
L320/X46 320 320~525 320~525 435 435~655 435~655 –
L360/X52 360 360~530 360~530 460 460~760 460~760 –
L390/X56 390 390~545 390~545 490 490~760 490~760 –
L415/X60 415 415~565 415~565 520 520~760 520~760 –
L450/X65 450 450~600 450~600 535 535~760 535~760 –
L485/X70 485 485~635 485~635 570 570~760 570~760 –
L555/X80 555~705 625~825 ≥40
Note:Line pipe for other special service environment will be manufactured based on the negotiation resule of both sides.

API 5L LINE PIPE

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