ASTM A53 Pipe
ASTM A53 Steel Pipe
ASTM A53 is a standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded, and seamless. It covers seamless and welded black and hot-dipped galvanized steel pipe in nominal sizes from 1/8 to 26 inches. ASTM A53 Grade A and Grade B are the two most common grades specified under this standard, with Grade B being more commonly used for structural and pressure applications. ASTM A53 steel pipe is commonly used for mechanical and pressure applications as well as ordinary uses in steam, water, gas, and air lines.
As a leading carbon steel pipe manufacturer, UNIACERO offers carbon steel pipes in Grades A and B, meeting the A53 specifications. Contact us now for a quote! Our experienced engineers will help you launch your new project smoothly.
ASTM A53 Specification
ASTM A53 is a widely used standard specification for carbon steel pipe intended for mechanical and pressure applications, as well as ordinary uses in steam, water, gas, and air lines.
Our production procedures strictly adhere to open-hearth, basic-oxygen, or electric-furnace processing. Furthermore, we offer various steel grades, surface coatings, end types, joint methods, and top-notch machining services, ensuring you get a product tailored to your specifications.
See the below table for detailed specifications:
| Production Standard | ASTM A53 |
| Manufacturing Processes | ERW (Electric Resistance Welding) |
| SMLS (Hot Finished / Cold Drawn Seamless) | |
| Outside Diameter | 10.3mm -660.4mm (1/8″ – 26″) |
| Wall Thickness | 1.65mm – 25.4mm (SCH 5S – SCH XXS) |
| Pipe Length | Single Random 4.88 – 6.71mtrs Double Random — 6.71 – 10.67mtrs |
| Steel Grade | ASTM A53 GRA |
| ASTM A53 GRB | |
| Corrosion Prevention | Lacquer, Varnish, Oiling, Galvanizing |
| FBE, 2LPP, 3LPP, 2LPE, 3LPE | |
| End Processes | Square Cut, Bevelling, Threading, Grooving |
| Further Processing | Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding |
If you have more specific questions or need further details about A53 pipe, feel free to contact us!
A53 Pipe Dimension Table
With options for different specifications, such as hot-dipped galvanized nominal wall thickness, bend diameter, and tensile requirements, our ASTM A53 steel pipes provide the precision required for mechanical and pressure applications. Whether you’re looking for specific outer diameters, lengths, or radius, our comprehensive dimension table ensures you find the perfect fit for your project, every time.
| Steel Pipe Dimensions Chart ANSI B36. 10 & 36.19 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal Pipe Size | Outside Diameter (mm) | Nominal Wall Thickness Schedule | ||||||||||||||
| NPS | DN | OD | SCH 5 | SCH 10 | SCH 20 | SCH 30 | SCH Sth | SCH 40 | SCH 60 | SCH XS | SCH 80 | SCH 100 | SCH 120 | SCH 140 | SCH 160 | SCH XXS |
| 1/8 | 6 | 10.3 | – | 1.24 | – | 1.45 | 1.73 | 1.73 | – | 2.41 | 2.41 | – | – | – | – | – |
| 1/4 | 8 | 13.7 | – | 1.65 | – | 1.85 | 2.24 | 2.24 | – | 3.02 | 3.02 | – | – | – | – | – |
| 3/8 | 10 | 17.1 | – | 1.65 | – | 1.85 | 2.31 | 2.31 | – | 3.20 | 3.20 | – | – | – | – | – |
| 1/2 | 15 | 21.3 | 1.65 | 2.11 | – | 2.41 | 2.77 | 2.77 | – | 3.73 | 3.73 | – | – | – | 4.78 | 7.47 |
| 3/4 | 20 | 26.7 | 1.65 | 2.11 | – | 2.41 | 2.87 | 2.87 | – | 3.91 | 3.91 | – | – | – | 5.56 | 7.82 |
| 1 | 25 | 33.4 | 1.65 | 2.77 | – | 2.9 | 3.38 | 3.38 | – | 4.55 | 4.55 | – | – | – | 6.35 | 9.09 |
| 1 1/4 | 32 | 42.2 | 1.65 | 2.77 | – | 2.97 | 3.56 | 3.56 | – | 4.85 | 4.85 | – | – | – | 6.35 | 9.70 |
| 1 1/2 | 40 | 48.3 | 1.65 | 2.77 | – | 3.18 | 3.68 | 3.68 | – | 5.08 | 5.08 | – | – | – | 7.14 | 10.15 |
| 2 | 50 | 60.3 | 1.65 | 2.77 | – | 3.18 | 3.91 | 3.91 | – | 5.54 | 5.54 | – | – | – | 8.74 | 11.07 |
| 2 1/2 | 65 | 73 | 2.11 | 3.05 | – | 4.78 | 5.16 | 5.16 | – | 7.01 | 7.01 | – | – | – | 9.53 | 14.02 |
| 3 | 80 | 88.9 | 2.11 | 3.05 | – | 4.78 | 5.49 | 5.49 | – | 7.62 | 7.62 | – | – | – | 11.13 | 15.24 |
| 3 1/2 | 90 | 101.6 | 2.11 | 3.05 | – | 4.78 | 5.74 | 5.74 | – | 8.08 | 8.08 | – | – | – | – | – |
| 4 | 100 | 114.3 | 2.11 | 3.05 | – | 4.78 | 6.02 | 6.02 | – | 8.56 | 8.56 | – | 11.13 | – | 13.49 | 17.12 |
| 5 | 125 | 141.3 | 2.77 | 3.40 | – | – | 6.55 | 6.55 | – | 9.53 | 9.53 | – | 12.70 | – | 15.88 | 19.05 |
| 6 | 150 | 168.3 | 2.77 | 3.40 | – | – | 7.11 | 7.11 | – | 10.97 | 10.97 | – | 14.27 | – | 18.26 | 21.95 |
| 8 | 200 | 219.1 | 2.77 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.70 | 12.70 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 10 | 250 | 273.0 | 3.40 | 4.19 | 6.35 | 7.80 | 9.27 | 9.27 | 12.70 | 12.70 | 15.09 | 18.26 | 21.44 | 25.40 | 28.58 | 25.40 |
| 12 | 300 | 323.8 | 3.96 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.70 | 17.48 | 21.44 | 25.40 | 28.58 | 33.32 | 25.40 |
| 14 | 350 | 355.6 | 3.96 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.70 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | – |
| 16 | 400 | 406.4 | 4.19 | 6.35 | 7.92 | 9.53 | 9.53 | 12.70 | 16.66 | 12.70 | 21.44 | 26.19 | 30.96 | 36.53 | 40.49 | – |
| 18 | 450 | 457 | 4.19 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.70 | 23.83 | 29.36 | 34.93 | 39.67 | 45.24 | – |
| 20 | 500 | 508 | 4.78 | 6.35 | 9.53 | 12.70 | 9.53 | 15.09 | 20.62 | 12.70 | 26.19 | 32.54 | 38.10 | 44.45 | 50.01 | – |
| 22 | 550 | 559 | 4.78 | 6.35 | 9.53 | 12.70 | 9.53 | – | 22.23 | 12.70 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | – |
| 24 | 600 | 610 | 5.54 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.70 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | – |
| 26 | 650 | 660 | – | 7.92 | 12.70 | – | 9.53 | – | – | 12.70 | – | – | – | – | – | – |
Chemical Requirements of A53 Grade A & Grade B
Our ASTM A53 steel pipes are crafted with a precise blend of carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum, and vanadium. This specific chemical composition ensures not only strength and durability but also resistance to various environmental factors.
See the table below for the chemical requirements of ASTM A53 Grade A & B:
| A53/A53M − Chemical Requirements | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Composition, max, % | |||||||||
| Carbon | Manganese | Phosphorus | Sulfur | CopperA | NickelA | ChromiumA | MolybdenumA | VanadiumA | |
| Type S (seamless pipe) | |||||||||
| Grade A Grade B | 0.25B 0.30C | 0.95 1.20 | 0.05 0.05 | 0.045 0.045 | 0.40 0.40 | 0.40 0.40 | 0.40 0.40 | 0.15 0.15 | 0.08 0.08 |
| Type E (electric-resistance-welded) | |||||||||
| Grade A Grade B | 0.25B 0.30C | 0.95 1.20 | 0.05 0.05 | 0.045 0.045 | 0.40 0.40 | 0.40 0.40 | 0.40 0.40 | 0.15 0.15 | 0.08 0.08 |
| Type F (furnace-welded pipe) | |||||||||
| Grades A and B | 0.30B | 1.2 | 0.05 | 0.045 | 0.4 | 0.4 | 0.4 | 0.15 | 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 % 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 % manganese above the specified maximum will be permitted up to a maximum of 1.65 %. | |||||||||
A53 Carbon Steel Mechanical Properties
Mechanical integrity is paramount. Our ASTM A53 steel pipes undergo rigorous tension, bend, and flattening tests. This ensures they adhere to the mechanical properties set by the ASTM A53 standard. From the hydrostatic test ensuring no leakage to the nondestructive electric test confirming the full volume of the pipe, we leave no stone unturned.
Tensile Requirements of ASTM A53
The tensile requirements of ASTM A53 refer to the minimum mechanical performance standards that steel pipes must meet in tensile testing. These requirements vary depending on the grade and type of pipes. The tensile requirements of A53 pipe, by specifying and testing the mechanical properties of steel pipes, provide a foundation and assurance for their reliable operation in various applications such as construction, industrial, and infrastructure.
See the table below for detailed information:
| Tensile Requirements | ||
|---|---|---|
| Mechanical Properties | Grade A | Grade B |
| Tensile strength, min, psi [MPa] | 48 000 [330] | 60 000 [415] |
| Yield strength, min, psi [MPa] | 30 000 [205] | 35 000 [240] |
| Elongation in 2 in. or 50 mm | A,B | A,B |
| ||
Hydrostatic Testing of A53 Steel Pipe
Hydrostatic testing is conducted to verify that the pipes can withstand the pressure specified for their intended applications without leakage or failure.
For pipes with plain end, threaded, and coupled ends, the minimum hydrostatic test pressure is 2,500 psi for sizes NPS 3 and under, and 2,800 psi for sizes over NPS 3. This pressure must be maintained for a minimum duration of 5 seconds for all sizes.
Mechanical Testing of A53 Steel Pipe
ERW pipes with a nominal pipe size (NPS) of 8 inches and larger must undergo transverse testing. This test evaluates the mechanical properties of the weld across the pipe’s diameter.
Steel Grades in ASTM A53
ASTM A53 covers different grades of steel pipes that are suitable for various applications. These grades are differentiated primarily by their chemical composition and mechanical properties, which are specified to meet different application requirements. The choice between Grade A and Grade B depends on factors such as the pressure and temperature conditions of the application, as well as the need for specific mechanical properties and weldability.
At UNIACERO, we provide steel pipes in Grade A & B. The most popular among them is Grade B, known for its superior quality and wide application range. Whether you need Furnace-butt-welded Grade A or B (Type F), Electric-resistance-welded Grade A or B (Type E), or Seamless Grade A or B (Type S), we have the perfect grade for your project requirements.
- Grade A: This type of steel is suitable for bending, flanging, and similar forming operations. It is typically used for low-pressure plumbing and other mechanical applications where welding is not required or for where it can be done with proper precautions.
- Grade B: Grade B has higher mechanical properties compared to Grade A. It is suitable for high-pressure and high-temperature applications. Grade B pipes are commonly used in industrial and commercial pipelines for conveying gas, oil, water, and other fluids. It is also suitable for welding operations.
Production Tolerance of A53
Precision is our promise. At UNIACERO, we ensure that the wall thickness of our ASTM A53 steel pipes never deviates more than 12.5% from the nominal specification. Additionally, weight variations are kept within a tight range of plus or minus 10%. Our commitment to production tolerance ensures that you receive consistent, high-quality products that fit seamlessly into your projects, every single time.
- The weight (mass) of the pipe shall not vary more than 6 10 % from its specified weight (mass), as derived by multiplying its measured length by its specified weight (mass) per unit length, as given in Table X2.2 or Table X2.3, or as calculated using the relevant equation in ASME B36.10M.
- The minimum wall thickness at any point shall be not more than 12.5 % under the specified wall thickness. The minimum wall thickness on inspection shall conform to the requirements given in Table X2.4.
- For pipe NPS 11⁄2 [DN 40] or smaller, the outside diameter at any point shall not vary more than 6 1⁄64 in. [0.4 mm] from the specified outside diameter. For pipe NPS 2 [DN 50] or larger, the outside diameter shall not vary more than 6 1 % from the specified outside diameter.
ASTM A53 Manufacturing Process
ASTM A53 pipes are typically manufactured by either seamless or electric resistance welding (ERW) methods.
Seamless pipes are produced without a welded seam and are suitable for high-pressure applications.
ERW steel pipe is formed from a strip of steel that is longitudinally welded and may undergo additional welding process.
Heat treatment is not required for ASTM A53 steel pipe unless specified by the purchaser. Normalizing, quenching, and tempering may be performed if necessary to achieve desired mechanical properties.
Common Industry Applications
- Construction Industry: ASTM A53 pipes are often used as structural elements in construction projects. They can serve as columns, beams, or other support structures, providing strength and stability to buildings and infrastructure.
- Oil and Gas: ASTM A53 pipe has good chemical composition and mechanical properties, making it primarily used for medium to low-pressure fluid transport in the oil and gas industry, such as pipeline networks within oil fields or downstream transport lines from wells.
- Automotive Transport: ASTM A53 steel pipe is easily welded, cut, or threaded, allowing for customization and adaptation to different automotive designs. It is commonly used as certain chassis components or structural parts in automotive transport applications, such as frames and supports for certain types of vehicles.
- Mechanical Industry: ASTM A53 pipes are often used in various mechanical systems due to their strength and versatility. They can handle moderate pressure and mechanical stress.
- Energy: The ease of welding, cutting, and threading of ASTM A53 pipe makes it ideal for transporting fluids and gases in energy-related applications where moderate pressure and stress are involved.
- Machining: ASTM A53 can be used for machining applications where moderate strength and mechanical properties are sufficient. It is often used in applications where high precision and tight tolerances are not critical.
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