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API 5L Gr B PSL 2 Lsaw Pipes Manufacturer and supplier

API 5L Gr B PSL 2 Lsaw Pipes Manufacturer and supplier

API 5L Gr B API 5L Gr X42 API 5L Gr X46 API 5L Gr X52
API 5L Gr X56 API 5L Gr X60 API 5L Gr X65 API 5L Gr X70
API 5L Gr B API 5L Gr X42 API 5L Gr X46 API 5L Gr X52 API 5L Gr X56 API 5L Gr X60
API 5L Gr X65 API 5L Gr X70 API 5L Gr X80 API 5L Gr X90 API 5L Gr X100 API 5L Gr X120
C Si Mn P S V Nb Ti other CE IIW CE PCM
0.24 0.40 1.20 0.025 0.015 c c 0.04 e,l 0.43 0.25
C Si Mn P S V Nb Ti other CE IIW CE PCM
0.18 0.45 1.40 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25
C Si Mn P S V Nb Ti other CE IIW CE PCM
0.22 0.45 1.20 0.025 0.015 0.05 0.05 0.04 e,l 0.43 0.25

e – Cu ≤ 0,50 {6e2eb0b27532d082572b360a61d9225d382482c51eada991c8918533389768e2}; Ni ≤ 0,30 {6e2eb0b27532d082572b360a61d9225d382482c51eada991c8918533389768e2}; Cr ≤ 0,30 {6e2eb0b27532d082572b360a61d9225d382482c51eada991c8918533389768e2} and Mo ≤ 0,15 {6e2eb0b27532d082572b360a61d9225d382482c51eada991c8918533389768e2}.
l – For PSL 2 pipe grades except those grades to which footnote J already applies, the following applies. Unless otherwise agreed no intentional addition of B is permitted and residual B ≤ 0,001 {6e2eb0b27532d082572b360a61d9225d382482c51eada991c8918533389768e2}.

Pipe Grade Weld seam of HFW, SAW & COW Pipes
Yield Strength.a
R10,5
MPa (psi)
Tensile Strength.a
Rm
MPa (psi)
Ratio a, b, c
Rt0,5 / Rm
Elongation
Af
{6e2eb0b27532d082572b360a61d9225d382482c51eada991c8918533389768e2}
Tensile Strength.d
Rm
MPa (psi)
minimum maximum minimum maximum manimum minimum minimum
L245R or BR
L245N or BN
L245Q or BQ
L245M or BM
245
(35 500)
450
(65 300)
415
(60 200)
655
(95 000)
0,93f415
(60 200)

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 gradesup tp Grade L320 or X46, the tensile strength shall be ≤ 655 MPa (95  000 psi). For intermediate grades greater than Grade L320 or X46 and lower than Grade L555 or X80, the tensile strength shall be ≤ 760 MPa (110 200 psi). 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 requiring longitudinal testing, 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:

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).
g    Lower values of Rto,5/Rm may be specified by agreement.
h    For grades > L625 or X90, Rp0,2/Rm applies. Lower values of Rp0,2/Rm may be specified by agreement.

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