High Temperature Seamless Alloy Steel Pipe - APISPEC5L-2012 Carbon Seamless Steel Line Pipe 46th edition – Sanonpipe
High Temperature Seamless Alloy Steel Pipe - APISPEC5L-2012 Carbon Seamless Steel Line Pipe 46th edition – Sanonpipe Detail:
Overview
Application
The pipeline is used to transport the oil, steam and water drawn from the ground to the oil and gas industry enterprises through the pipeline
Main Grade
Grade for API 5L line pipe steel: Gr.B X42 X52 X60 X65 X70
Chemical Component
| Steel Grade (Steel Name) | Mass Fraction, Based on Heat and Product Analyses a,g% | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| max b | max b | min | max | max | max | max | max | |
| Seamless Pipe | ||||||||
| L175 or A25 | 0.21 | 0.60 | — | 0.030 | 0.030 | — | — | — |
| L175P or A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | — | — | — |
| L210 or A | 0.22 | 0.90 | — | 0.030 | 0.030 | — | — | — |
| L245 or B | 0.28 | 1.20 | — | 0.030 | 0.030 | c,d | c,d | d |
| L290 or X42 | 0.28 | 1.30 | — | 0.030 | 0.030 | d | d | d |
| L320 or X46 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L360 or X52 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L390 or X56 | 0.28 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L415 or X60 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L450 or X65 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L485 or X70 | 0.28 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| Welded Pipe | ||||||||
| L175 or A25 | 0.21 | 0.60 | — | 0.030 | 0.030 | — | — | — |
| L175P or A25P | 0.21 | 0.60 | 0.045 | 0.080 | 0.030 | — | — | — |
| L210 or A | 0.22 | 0.90 | — | 0.030 | 0.030 | — | — | — |
| L245 or B | 0.26 | 1.20 | — | 0.030 | 0.030 | c,d | c,d | d |
| L290 or X42 | 0.26 | 1.30 | — | 0.030 | 0.030 | d | d | d |
| L320 or X46 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L360 or X52 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L390 or X56 | 0.26 | 1.40 | — | 0.030 | 0.030 | d | d | d |
| L415 or X60 | 0.26 e | 1.40 e | — | 0.030 | 0.030 | f | f | f |
| L450 or X65 | 0.26 e | 1.45 e | — | 0.030 | 0.030 | f | f | f |
| L485 or X70 | 0.26 e | 1.65 e | — | 0.030 | 0.030 | f | f | f |
|
a Cu ≤ 0.50 %; Ni ≤ 0.50 %; Cr ≤ 0.50 % and Mo ≤ 0.15 %. b For each reduction of 0.01 % below the specified maximum concentration for carbon, an increase of 0.05 % above the specified maximum concentration for Mn is permissible, up to a maximum of 1.65 % for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1.75 % for grades > L360 or X52, but < L485 or X70; and up to a maximum of 2.00 % for Grade L485 or X70. c Unless otherwise agreed, Nb + V ≤ 0.06 %. d Nb + V + Ti ≤ 0.15 %. e Unless otherwise agreed. f Unless otherwise agreed, Nb + V + Ti ≤ 0.15 %. g No deliberate addition of B is permitted and the residual B ≤ 0.001 %. |
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Mechanical Property
|
Pipe Grade |
Pipe Body of Seamless and Welded Pipe | Weld Seam of EW, LW, SAW, and COWPipe | ||
| Yield Strength a
Rt0.5 |
Tensile Strength a
Rm |
Elongation(on 50 mm or 2 in.)
Af |
Tensile Strength b
Rm |
|
| MPa (psi) | MPa (psi) | % | MPa (psi) | |
| min | min | min | min | |
| L175 or A25 | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L175P or A25P | 175 (25,400) | 310 (45,000) | c | 310 (45,000) |
| L210 or A | 210 (30,500) | 335 (48,600) | c | 335 (48,600) |
| L245 or B | 245 (35,500) | 415 (60,200) | c | 415 (60,200) |
| L290 or X42 | 290 (42,100) | 415 (60,200) | c | 415 (60,200) |
| L320 or X46 | 320 (46,400) | 435 (63,100) | c | 435 (63,100) |
| L360 or X52 | 360 (52,200) | 460 (66,700) | c | 460 (66,700) |
| L390 or X56 | 390 (56,600) | 490 (71,100) | c | 490 (71,100) |
| L415 or X60 | 415 (60,200) | 520 (75,400) | c | 520 (75,400) |
| L450 or X65 | 450 (65,300) | 535 (77,600) | c | 535 (77,600) |
| L485 or X70 | 485 (70,300) | 570 (82,700) | c | 570 (82,700) |
| a For intermediate grades, the difference between the specified minimum tensile strength and the specified minimum yield strength for the pipe body shall be as given in the table for the next higher grade.b 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).
c The specified minimum elongation, Af, expressed in percent and rounded to the nearest percent, shall be as determined using the following equation:
where C is 1940 for calculations using SI units and 625,000 for calculations using USC units; Axc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches), as follows: 1) for circular cross-section test pieces, 130 mm2 (0.20 in.2) for 12.7 mm (0.500 in.) and 8.9 mm (0.350 in.) diameter test pieces; 65 mm2 (0.10 in.2) for 6.4 mm (0.250 in.) diameter test pieces; 2) for full-section test pieces, the lesser of a) 485 mm2 (0.75 in.2) 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 in.2); 3) for strip test pieces, the lesser of a) 485 mm2 (0.75 in.2) 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 in.2); U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch). |
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Outside diameter, out of roundness and wall thickness
| Specified Outside Diameter D (in) | Diameter Tolerance, inches d | Out-of-Roundness Tolerance in | ||||
| Pipe except the end a | Pipe end a,b,c | Pipe except the End a | Pipe End a,b,c | |||
| SMLS Pipe | Welded Pipe | SMLS Pipe | Welded Pipe | |||
| < 2.375 | -0.031 to + 0.016 | – 0.031 to + 0.016 | 0.048 | 0.036 | ||
| ≥2.375 to 6.625 | 0.020D for | 0.015D for | ||||
| +/- 0.0075D | – 0.016 to + 0.063 | D/t≤75 | D/t≤75 | |||
| By agreement for | By agreement for | |||||
| >6.625 to 24.000 | +/- 0.0075D | +/- 0.0075D, but max of 0.125 | +/- 0.005D, but max of 0.063 | 0.020D | 0.015D | |
| >24 to 56 | +/- 0.01D | +/- 0.005D but max of 0.160 | +/- 0.079 | +/- 0.063 | 0.015D for but max of 0.060 | 0.01D for but max of 0.500 |
| For | For | |||||
| D/t≤75 | D/t≤75 | |||||
| By agreement | By agreement | |||||
| for | for | |||||
| D/t≤75 | D/t≤75 | |||||
| >56 | As agreed | |||||
| a. The pipe end includes a length of 4 in ate each of the pipe extremities | ||||||
| b. For SMLS pipe the tolerance apply for t≤0.984in and the tolerances for the thicker pipe shall be as agreed | ||||||
| c. For expanded pipe with D≥8.625in and for non-expanded pipe, the diameter tolerance and the out-of-roundness tolerance may be determined using the calculated inside diameter or measured inside diameter rather than the specified OD. | ||||||
| d. For determining compliance to diameter tolerance, the pipe diameter is defined as the circumference of the pipe in any circumferential plane divide by Pi. | ||||||
| Wall thickness | Tolerances a |
| t inches | inches |
| SMLS pipe b | |
| ≤ 0.157 | -1.2 |
| > 0.157 to < 0.948 | + 0.150t / – 0.125t |
| ≥ 0.984 | + 0.146 or + 0.1t, whichever is the greater |
| – 0.120 or – 0.1t, whichever is the greater | |
| Welded pipe c,d | |
| ≤ 0.197 | +/- 0.020 |
| > 0.197 to < 0.591 | +/- 0.1t |
| ≥ 0.591 | +/- 0.060 |
| a. If the purchase order specifies a minus tolerance for wall thickness smaller than the applicable value given in this table, the plus tolerance for wall thickness shall be increased by an amount sufficient to maintain the applicable tolerance range. | |
| b. For pipe with D≥ 14.000 in and t≥0.984in, the wall thickness tolerance locally may exceed the plus tolerance for wall thickness by an additional 0.05t provided that the plus tolerance for mass is not exceeded. | |
| c. The plus tolerance for wall thickens does not apply to the weld area | |
| d. See the full API5L spec for full details | |
Tolerance
Test Requirement
Hydrostatic test
Pipe to withstand a hydrostatic test without leakage through the weld seam or the pipe body. Jointers need not be hydrostatic tested provide the pipe sections used were successfully tested.
Bend test
No cracks shall occur in any portion of the test piece and no opening of the weld shall occur.
Flattening test
Acceptance criteria for flattening test shall be:
- EW pipes D<12.750 in:
- X60 with T 500in. There shall be no opening of the weld before the distance between the plates is less than 66% of the original outside diameter. For all grades and wall, 50%.
- For pipe with a D/t > 10, there shall be no opening of the weld before the distance between the plates is less than 30% of the original outside diameter.
- For other sizes refer to the full API 5L specification.
CVN impact test for PSL2
Many PSL2 pipe sizes and grades require CVN. Seamless pipe is to be tested in the body. Welded pipe is to be tested in the body, pipe weld and heat-affected zone. Refer to the full API 5L specification for the chart of sizes and grades and required absorbed energy values.
Product Detail
Petroleum Pipes Structure Pipes
Product detail pictures:
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