ASTM A53 Carbon Steel Pipe Manufacturer and Supplier – Brisk Steel
| Standard | ASTM A53/A53M |
| Manufacture | Seamless and welded steel pipe |
| Type | Type E: electric resistance welded |
| Type S: seamless | |
| Type F: furnace butt welded | |
| Grade | Grade A and Grade B |
| Dimensions | NPS 1/8 – NPS 26 (DN 6 – DN 650) |
| Schedule | SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140, SCH160 |
| Weight class | STD, XS, XXS |
| Surface | Black pipe or hot dip galvanized |
| End | Plain, Threaded, Threaded and Coupled |
| Applicant | Mechanical and pressure applications, steam, water, gas, and air pipelines |
| Process | Coiling, Bending, and Flanging |
What is the ASTM A53 ?
ASTM A53 steel pipes are carbon steel pipes produced in accordance with the American ASTM standards, suitable for mechanical and pressure applications as well as for general purposes such as steam, water, gas, and air pipelines. They are compatible with welding and forming operations including coiling, bending, and flanging.
Notes: Type F is not intended for flanging.
Materials and Manufacture
ASTM A53 steel pipes should be manufactured using either seamless or electric resistance welding (ERW) or furnace butt welding (FBW) processes, and include two grades: Grade A, Grade B.
Notes: When cold expanding these pipes, the expansion should not exceed 1% of the specified outer diameter. For Type E Grade B and Type F Grade B pipes, the weld seams must be heat-treated at a minimum temperature of 1000 °F (540 °C) to eliminate any untempered martensite.
Chemical Composition
| Composition max, % |
Type S (seamless pipe) |
Type E (electric-resistance welded) |
Type F (furnace welded pipes) |
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| Grade A | Grade B | Grade A | Grade B | Grade A | Grade B | |
| Carbon | 0.25 b | 0.30 c | 0.25 b | 0.30 c | 0.30 b | 0.30 b |
| Manganese | 0.95 | 1.20 | 0.95 | 1.20 | 1.20 | 1.20 |
| Phosphorus | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Sulfur | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| Copper a | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Nickel a | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Chromium a | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Molybdenum a | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Vanadium a | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
| a: The total composition for these five elements shall not exceed 1.00 %. b: For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % of manganese above the specified maximum will be permitted up to a maximum of 1.35 %. c: For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % of manganese above the specified maximum will be permitted up to a maximum of 1.65 %. |
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Mechanical Properties
Tension Test
| List | Grade A | Grade B |
| Tensile strength, min | 48,000 psi [330 MPa] | 60,000 psi [415 MPa] |
| Yield strength, min | 30,000 psi [205 MPa] | 35,000 psi [240 MPa] |
| Elongation, in 2 in (50 mm) | A, B | |
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A: The minimum elongation in 2 in [50 mm] shall be that determined by the following equation: e = 625000 [1940] A0.2/U0.9 where:
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Bend Test
For pipe NPS 2 [DN 50] or smaller, a sufficient length of pipe shall be capable of being bent cold through 90°around a cylindrical mandrel, the diameter of which is twelve times the specified outside diameter of the pipe,without developing cracks at any portion and without opening the weld.
If ordered for close coiling,the pipe shall stand beingbent cold through 180°around a cylindrical mandrel,thediameter of which is eight times the specified outside diameterof the pipe,without failure.
Double-extra-strong pipe over NPS 1/4 [DN 32]need not be subjected to the bend test.
Flattening Test
The flattening test applies to welded steel pipes that are larger than NPS 2 [DN 50] and have a wall thickness less than extra-strong (XS).
Seamless steel pipes do not require a flattening test.
Hydrostatic Test
The hydrostatic test shall be applied,without leakagethrough the weld seam or the pipe body.
Test Time: for all size of Type S, Type E, and Type F Grade B pipes should be held for a minimum of 5 seconds;
Hydrostatic Pressure Values:
- Steel pipe with flat ends shall be hydrostatically tested at the pressures listed in Table X2.2.
- Steel pipe with Threaded and Coupled pipe ends shall be hydrostatically tested to the pressures listed in Table X2.3.
- For NPS 3 [DN 80] or smaller pipe, the minimum hydrostatic pressure shall not exceed 2500 psi [17,200 kPa];
- For steel pipe NPS 3 [DN 80] or larger, the minimum hydrostatic pressure shall not exceed 2800 psi [19,300 kPa];
Nonedestructive Electric Test
Type E Grade B and Type F Grade B:
NPS2 [DN 50] or larger: welds shall be checked following E213, E273, E309 or E570. ERW tubes are inspected in their entirety by E213, E309, or E570;
Type S steel pipe:
For seamless steel pipe, nondestructive electrical testing is used as a substitute for hydraulic testing. The full volume of the pipe shall be checked under E213, E309, or E570. If the pipe passes the inspection, it is necessary to mark the pipe with NDE.
Dimensional Tolerance
| Sport | Tolerance | |
| mass | specified weight | ± 10 % of specified weight |
| Diameter | DN 40 [NPS 1/2] or smaller | ± 1/64 in [± 0.4 mm] |
| DN 50 [NPS 2] or larger | ± 1 % | |
| Thickness | specified wall thickness | minimum 87.5 % |
| Lengths | lighter than extra-strong weight | 16 – 22 ft [4.88 – 6.71 m] single-random lengths |
| lighter than extra-strong weight plain-end steel tubing | 12 – 16 ft [3.66 – 4.88 m] steel pipe not to exceed 5 % of total number | |
| extra-strong weight or heavier | 12 – 22 ft [3.66 – 6.71 m] and no more than 5 % of the total number of 6 to 12 ft [1.83 to 3.66 m] | |
| extra-strong weight or lighter pipe ordered in double-random lengths | single length not less than 22 ft [6.71 m], with an average length not less than 35 ft [10.67 m] | |
End Finish
| Ends Types | Range | Requirements | |
| Plain ends | NPS 1 1/2 [DN 40] or Smaller | contractual provision | |
| Large taan NPS 1 1/2 [DN 40] | Pipe of standard-weight or extra-strong weight, or in wall thickness less than 0.500 in. [12.7 mm], other than double extra-strong weight pipe | plain-end beveled with ends beveled to angle of 30° – 35°, root face 0.8 – 2.4mm | |
| Pipe with a specified wall thickness greater than 0.500 in. [12.7 mm], and all double extra-strong weight pipe |
plain-end square cut | ||
| threaded ends | For standard-weight pipe NPS 6 [DN 150] or smaller | Measured in accordance with ANSI B1.20.1 | ASTM A53 Table x3.1 |
| For standard-weight pipe NPS 8 [DN 200] or larger and all sizes of extra-strong weight pipe and double extra-strong weight pipe | ASTM A53 Table x3.2 | ||
| couplings end | pipe NPS 2 1/2 [DN 65] or larger | Manufactured by ASTM A865, Measured by ANSI B1.20.1 | Taper-tapped couplings |
| pipe smaller NPS 2 1/2 [DN 65] | Straight-tapped couplings | ||
Coating
Hot-dip Galvanized Coating
A53 galvanized coating shall be applied to the inside and outside surfaces of the steel pipe by the hot dip galvanizing process.
Raw material: Zinc used for coating shall be any grade of zinc conforming to B6;
Thickness: not less than 1.8 oz/ft² [0.55 kg/m²];
Appearance: Galvanized pipe shall be free of uncoated areas, air bubbles, flux deposits, slag, and other impurities, and lumps, bumps, globules, or large quantities of zinc deposits interfering with the intended use shall not be permitted;
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