Advantages of API 5l pipe

API 5L Pipe

API 5L Pipe, also known as Steel Casing Pipe & encasement pipe, is most commonly used in underground construction to protect utility lines of various types from getting damaged. Such damage might occur due to the elements of nature or human activity.

API 5l pipe is used in different types of horizontal underground boring, where the pipe is jacked into an augered hole in segments and then connected together by welding or by threaded and coupled ends, or other proprietary pipe connectors.

Uses:

API 5l pipe protects one or many of various types of utilities such as water mains, gas pipes, electrical power cables, fiber optic cables, etc. The utility lines that are run through the steel casing pipe are most commonly mounted and spaced within the steel casing pipe by using “casing spacers” that are made of various materials, including stainless steel or carbon steel . The ends of a steel casing pipe “run” are normally sealed with “casing end seals”, which can be of the “pull-on” or “wrap-around” rubber varieties. API 5L pipe is also used in the construction of deep foundations

Specification:

API 5l Pipe generally has specific specifications, In some areas A.S.T.M. specifications may be required by project engineers. The specification most commonly called for is A.S.T.M. 139 Grade B. This specification gives parameters for minimum yield and tensile strength of the steel pipe being used for casing, and tolerances of straightness and concentricity.

API 5l pipe is often specified as ASTM A-252 which is a structural grade material that does not require hydrostatic testing and the inspection requirements are not stringent and it usually costs less than other grades such as A-53, A-139.

Standard: API 5L

Seamless carbon steel line pipes

Steel Chemical analysis [%]
grade C Mn P S Si Cr Cu Mo Ni V
A ≤0,25 0,27 – 0,93 ≤0,035 ≤0,035 ≥0,1 ≤0,40 ≤0,40 ≤0,15 ≤0,40 ≤0,08
B ≤0,30 0,29 – 1,06 ≤0,035 ≤0,035 ≥0,1 ≤0,40 ≤0,40 ≤0,15 ≤0,40 ≤0,08
C ≤0,35 0,29 – 1,06 ≤0,035 ≤0,035 ≥0,1 ≤0,40 ≤0,40 ≤0,15 ≤0,40 ≤0,08

 

Steel Mechanical properties
grade Rm min [MPa] ReH min [MPa] A [%]
A 330 205 35
B 415 240 30

 

Reference number OD WT Weight
[inch] [mm] [mm] [inch] STD/XS [kg/m]
1 3/8 17,1 2,31 0,091 STD
2 3/8 17,1 3,20 0,126 XS
3 1/2 21,3 2,77 0,109 STD
4 1/2 21,3 3,73 0,147 XS
5 1/2 21,3 4,78 0,188 -
6 3/4 26,7 2,87 0,113 STD
7 3/4 26,7 3,91 0,154 XS
8 3/4 26,7 5,56 0,219 -
9 1 33,4 3,38 0,133 STD
10 1 33,4 4,55 0,179 XS
11 1 33,4 6,35 0,250 -
12 1 1/4 42,2 3,56 0,140 STD
13 1 1/4 42,2 4,85 0,191 XS
14 1 1/4 42,2 6,35 0,250 -
15 1 1/4 42,2 9,70 0,382 XXS
16 1 1/2 48,3 3,68 0,145 STD
17 1 1/2 48,3 5,08 0,200 XS
18 1 1/2 48,3 7,14 0,281 -
19 1 1/2 48,3 10,15 0,400 XXS
20 2 60,3 2,77 0,109 -
21 2 60,3 3,18 0,125 -
22 2 60,3 3,58 0,141 -
23 2 60,3 3,91 0,154 STD
24 2 60,3 4,37 0,172 -
25 2 60,3 4,78 0,188 -
26 2 60,3 5,54 0,218 XS
27 2 60,3 6,35 0,250 -
28 2 60,3 7,14 0,281 -
29 2 60,3 8,74 0,344 -
30 2 1/2 73,0 2,77 0,109 -
31 2 1/2 73,0 3,18 0,125 -
32 2 1/2 73,0 3,58 0,141 -
33 2 1/2 73,0 3,96 0,156 -
34 2 1/2 73,0 4,37 0,172 -
35 2 1/2 73,0 4,78 0,188 -
36 2 1/2 73,0 5,16 0,203 STD
37 2 1/2 73,0 5,49 0,216 -
38 2 1/2 73,0 6,35 0,250 -
39 2 1/2 73,0 7,01 0,276 XS
40 2 1/2 73,0 9,53 0,375 -
41 3 88,9 3,18 0,125 -
42 3 88,9 3,58 0,141 -
43 3 88,9 3,96 0,156 -
44 3 88,9 4,37 0,172 -
45 3 88,9 4,78 0,188 -
46 3 88,9 5,49 0,216 STD
47 3 88,9 6,35 0,250 -
48 3 88,9 7,14 0,281 -
49 3 88,9 7,62 0,300 XS
50 3 88,9 11,13 0,438 -
51 3 88,9 15,24 0,600 XXS
52 3 1/2 101,6 5,74 0,226 STD
53 3 1/2 101,6 6,35 0,250 -
54 3 1/2 101,6 7,14 0,281 -
55 3 1/2 101,6 8,08 0,318 XS
56 4 114,3 5,56 0,219 -
57 4 114,3 6,02 0,237 STD
58 4 114,3 6,35 0,250 -
59 4 114,3 7,14 0,281 -
60 4 114,3 7,92 0,312 -
61 4 114,3 8,56 0,337 XS
62 4 114,3 11,13 0,438 -
63 4 114,3 13,49 0,531 -
64 4 114,3 17,12 0,674 XXS
65 5 141,3 5,56 0,219 -
66 5 141,3 6,55 0,258 STD
67 5 141,3 7,14 0,281 -
68 5 141,3 7,92 0,312 -
69 5 141,3 8,74 0,344 -
70 5 141,3 9,53 0,375 XS
71 5 141,3 12,70 0,500 -
72 5 141,3 15,88 0,625 -
73 6 168,3 7,11 0,280 STD
74 6 168,3 7,92 0,312 -
75 6 168,3 8,74 0,344 -
76 6 168,3 9,53 0,375 -
77 6 168,3 10,97 0,432 XS
78 6 168,3 12,70 0,500 -
79 6 168,3 14,27 0,562 -
80 6 168,3 15,88 0,625 -