API 5L PSL 2 Pipe Mechanical Properties Tensile Strength
API 5L PSL 2 Pipe Mechanical Properties Table
| Pipe grade |
Pipe body of seamless and welded pipes |
Weld seam of HFW, SAW and COW pipes |
Yield strength
Rto,5b
MPa (psi) |
Tensile strength
Rm
MPa (psi) |
Ratioa,b,c
Rto,5/Rm |
Elongation
Af
% |
Tensile strength
Rm
MPa (psi) |
| minimum |
maximum |
minimum |
maximum |
maximum |
minimum |
minimum |
L245R or BR
L245N or BN
L245Q or BQ
L245M or BM |
245
(35 500) |
450 e
(65 300) e |
415
(60 200) |
760
(110 200) |
0,93 |
f |
415
(60 200) |
L290R or X42R
L290N or X42N
L290Q or X42Q
L290M or X42M |
290
(42 100) |
495
(71 800) |
415
(60 200) |
760
(110 200) |
0,93 |
f |
415
(60 200) |
L320N or X46N
L320Q or X46Q
L320M or X46M |
320
(46 400) |
525
(76 100) |
435
(63 100) |
760
(110 200) |
0,93 |
f |
435
(63 100) |
L360N or X52N
L360Q or X52Q
L360M or X52M |
360
(52 200) |
530
(76 900) |
460
(66 700) |
760
(110 200) |
0,93 |
f |
460
(66 700) |
L390N or X56N
L390Q or X56Q
L390M or X56M |
390
(56 600) |
545
(79 000) |
490
(71 100) |
760
(110 200) |
0,93 |
f |
490
(71 100) |
L415N or X60N
L415Q or X60Q
L415M or X60M |
415
(60 200) |
565
(81 900) |
520
(75 400) |
760
(110 200) |
0,93 |
f |
520
(75 400) |
L450Q or X65Q
L450M or X65M |
450
(65 300) |
600
(87 000) |
535
(77 600) |
760
(110 200) |
0,93 |
f |
535
(77 600) |
L485Q or X70Q
L485M or X70M |
485
(70 300) |
635
(92 100) |
570
(82 700) |
760
(110 200) |
0,93 |
f |
570
(82 700) |
L555Q or X80Q
L555M or X80M |
555
(80 500) |
705
(102 300) |
625
(90 600) |
825
(119 700) |
0,93 |
f |
625
(90 600) |
| L625M or X90M |
625
(90 600) |
775
(112 400) |
695
(100 800) |
915
(132 700) |
0,95 |
f |
695
(100 800) |
| L690M or X100M |
690
(100 100) |
840
(121 800) |
760
(110 200) |
990
(143 600) |
0,97 g |
f |
760
(110 200) |
| L830M or X120M |
830
(120 400) |
1 050
(152 300) |
915
(132 700) |
1 145
(166 100) |
0,99 g |
f |
915
(132 700) |
a For intermediate grades, the difference between the specified maximum yield strength and the specified minimum yield strength shall be as given in the table for the next higher grade, and the difference between the specified minimum tensile strength and the specified minimum yield strength shall be as given in the table for the next higher grade, For intermediate grades lower than Grade L555 or X80, the tensile strength shall be ≤ 760 MPa (110 200 psl). For intermediate grades higher than Grade L555 or X80, the maximum permissible tensile strength shall be obtained by interpolation. For SI units, the calculated value shall be rounded to the nearest 5 MPa. For USC units, the calculated value shall be rounded to the nearest 100 psi.
b For grades >L625 or X90, Rp0,2 applies.
c This limit applies for pipe with D >323, 9 mm (12.750 in).
d For intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using footnote a).
e For pipe with D<219,1 mm (8.625 in), the maximum yield strength shall be ≤495 MPa (71 800 psi).
f The specified minimum elongation, Af, shall be as determined using the following equation:
Where
C is 1 940 for calculations using SI units and 625 000 for calculations using USC units;
A xc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches), as follows:
---- for circular cross-section test pieces, 130 mm2 (0.20 in2) for 12,5 mm (0.500 in) and 8,9 mm (0.350 in) diameter test pieces; and 65 mm2 ( 0.10 in2) for 6,4 mm (0.250 in) diameter test pieces;
---- for full-section test pieces, the lesser of a) 485 mm2 (0.75 in2) and b) the cross-sectional area of the test piece, derived using the specified outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.01 in2)
---- for strip test pieces, the lesser of a) 485 mm2( 0.75 in2 ) and b) the cross-sectional area of the test piece, derived using the specified width of the test piece and the specified wall thickness of the pipe, rounded to the nearest_10 mm2 (0.01 in2 );
U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch).
Related References:
API 5CT. Tubing
API 5L. Line Pipes
OCTG API 5L ASTM Line Pipes Specification
Chemical Composition for API 5L PSL 1 Pipes
Chemical Composition for API 5L PSL 2 Pipes
API 5L PSL 1 Pipe Mechanical Properties Tensile Strength
API 5L PSL 2 Pipe Mechanical Properties Tensile Strength
API 5L PSL 2 Pipes Impact Test Table
API 5L Steel Number Steel Designation Equivalent Table ISO 3138 EN 10027-2
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