ASTM A53 Grade B

ASTM A53

ASTM A53 Grade B

ASTM A53 Grade B pipe (also known as ASME SA53 pipe) is designed for mechanical and pressure applications, but it is also suitable for general use in steam, water, gas, and airlines. Subject to particular conditions, it is ideal for welding as well as shaping operations like coiling, bending, and flanging.

ASTM A53 Grade B pipe is appropriate for welding and covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging, and other specific operations. Flanging is not recommended for the continuous-welded pipe. The purpose for which the pipe is designed should be specified in the order.

Why choose tuspipe?

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Since 1998, Tianjin United Steel Pipe Co., Ltd (TUSPIPE) has been committed to supplying high-quality line pipes.

With over 500,000 tons annual production capacity, the company serves various fields and industries, such as oil & gas exploitation and transmission, ship & auto-building, water & electricity, environmental protection, mechanical engineering, infrastructure construction and etc.

TUSPIPE places a premium on product quality and rigorous product quality control. In order to maintain good product quality,  the company has established a Test & Inspection Center since 2004. With a series of state-of-the-art tests and inspection equipment, the test & inspection center is able to perform the tensile tests, hydro tests, impact tests, DWTT, etc.

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Types of ASTM A53 Grade B Pipes

- ASTM A53 Grade B Type E – Electric Resistance Welded Pipe.

The longitudinal junction of Type E Garde B pipes is welded by heat generated by electric resistance between the pipe’s opposite ends. In this operation, a set of rollers is also used to connect heated ends. The weld seam of ASTM A53 Grade B pipes is heat-treated to a minimum of 540°C after welding.

- ASTM A53 Grade B Type S – Seamless Pipe

ASTM A53 Grade B type S pipes are made by the extrusion method. An open-hearth furnace, an electric furnace, or a basic-oxygen process is used to produce the raw steel needed to build pipes.

Application and Usage of ASTM A53 Grade B Piping

- ASTM A53 Grade B Pipes for Oil & Gas

ASTM A53 Grade B pipes are applied in a range of applications, including commodities processing, marine applications, and oil and gas transportation of gas and liquid. Our clients typically require anti-corrosive coating for pipes used to carry oil, gasoline, and propane, and we are pleased to supply.

- ASTM A53 Grade B Pipes for Structural Steel

ASTM A53 Grade B pipe is available in a wide range of diameters and grades, allowing it to be used in a wide number of structural applications and for a wide variety of structural functions. Columns, bollards, sign poles, structural supports, and piling are just a few of the often used uses for the structural pipe.

- ASTM A53 Grade B Pipes for Metallic Conduit

Our ASTM A53 Grade B metallic conduit pipes, also known as electrical metallic tubes (EMT), provide robust protection for individual electrical wiring conductors within buildings. Classified by wall thickness, joint stiffness, and material, these ASTM A53 Grade B steel pipes, including Galvanized Rigid Conduit (GRC) and Intermediate Metal Conduit (IMC), safeguard wiring from collision, moisture, and chemical vapors.

 Hot-dipped galvanized to prevent zinc accumulation, these conduits feature exceptional ductility, allowing for easy bending, threading, and cutting. The exterior is coated with clear lacquer for extended shelf life. Trust in the durability and versatility of our a53 grB conduit pipes for secure electrical installations.

- ASTM A53 Grade B Pipes for Conveyor Roller

Our ASTM A53 Grade B conveyor roller pipes are essential components for efficient material transport. These machined pipes play a crucial role in supporting and guiding conveyor belts, facilitating the seamless movement of goods such as coal, sand, or iron ore. Trust in the reliability of our a53 grB conveyor roller pipes for smooth and effective material handling.

Dimensions and Sizes of ASTM A53 Grade B Pipe

NPS O. D. Nominal Wall Thickness
DN Inch mm SCH5S SCH10S SCH10 SCH20 SCH30 SCH40 SCH60 SCH80 SCH100 SCH120 SCH140 SCH160 Sth XS XXS
50 2″ 60.3 1.65 2.77 3.91 5.54 8.74 3.91 5.54 11.07
65 2 1/2″ 73 2.11 3.05 5.16 7.01 9.53 5.16 7.01 14.02
80 3″ 88.9 2.11 3.05 5.49 7.62 11.13 5.49 7.52 15.24
90 3 1/2″ 101.6 2.11 3.05 5.74 8.08 5.74 8.08
100 4″ 114.3 2.11 3.05 6.02 8.58 11.13 13.49 6.02 8.56 17.12
125 5″ 141.3 2.77 3.4 6.55 9.53 12.7 15.88 6.55 9.53 18.05
150 6″ 168.3 2.77 3.4 7.11 10.97 14.27 18.26 7.11 10.97 21.95
200 8″ 219.1 2.77 3.76 6.35 7.04 8.18 10.31 12.7 15.09 18.26 20.62 23.01 8.18 12.7 22.23
250 10″ 273.1 3.4 4.19 6.35 7.8 9.27 12.7 15.09 18.26 21.44 25.4 28.58 9.27 12.7 25.4
300 12″ 323.9 3.96 4.57 6.35 8.38 10.31 14.27 17.48 21.44 25.4 28.58 33.32 9.53 12.7 25.4
350 14″ 355.5 3.96 4.78 6.35 7.92 9.53 11.13 15.09 19.05 23.83 27.79 31.75 35.71 9.53 12.7
400 16″ 406.4 4.19 4.78 6.35 7.92 9.53 12.7 16.66 21.44 26.19 30.96 36.53 40.49 9.53 12.7
450 18″ 457.2 4.19 4.78 6.35 7.92 11.13 14.27 19.05 23.83 39.36 34.93 39.67 45.24
500 20″ 508 4.78 5.54 6.35 9.53 12.7 15.09 20.62 26.19 32.54 38.1 44.45 50.01
550 22″ 558.8 4.78 5.54 6.35 9.53 12.7 22.23 28.58 34.93 41.28 47.63 53.98
600 24″ 609.6 5.54 6.35 6.35 9.53 14.27 17.48 24.61 30.96 38.89 46.02 52.37 59.54

Chemical Composition of ASTM A53 Grade B Pipes

Elements Type S (Seamless) Grade B Type E (ERW) Grade B
Carbon max. % 0.30* 0.3
Manganese % 1.2 1.2
Phosphorous, max. % 0.05 0.05
Sulfur, max. % 0.045 0.045
Copper, max.% 0.4 0.4
Nickel, max. % 0.4 0.4
Chromium, max. % 0.4 0.4
Molybdenum, max. % 0.15 0.15
Vanadium, max. % 0.08 0.08

Mechanical Properties of ASTM A53 Grade B Pipes

Types and Grades Min. Tensile Strength Min. Yield Strength
Type E and S – Grade B 415Mpa / 60000psi 240Mpa / 35000psi

Thickness and Mass Tolerance of ASTM A53 Grade B Pipes

Item O.D. Over Under
Outside Diameter NPS 1/8 to 1-1/2, DN 6 to 40 ±0.4mm ±0.4mm
NPS 2 and up, DN 50 and up ±1% ±1%
Wall Thickness at Any Point ±12.5%
Weight ±10% ±10%

Test & Inspection During ASTM A53 Grade A Pipe Production

  • Chemical Analysis – Number of tests: 2 pieces each lot of 500 or 2 pieces per heat. (If either pipe fails, an additional two pieces from the same batch must be tested.)
  • Tensile Test – This test is performed to assess the mechanical properties of the ASTM A53 Grade B pipe. In the case of welded pipe, the weld strength shall not be less than the pipe body strength.
  • Bending Test – On pipe diameters NPS 2 and less, a bending test is performed to determine the ductility of the ASTM A53 Grade B pipe. The bend test could be 90 degrees or 180 degrees, depending on the situation.
  • Flattening Test – For ductility, ASTM A53 Grade B pipe sizes greater than NPS 2 are flattening test. In line with ASTM A53, a pipe sample is sliced and flattened between two flat surfaces.
  • Hydro-Test – This is a test that is performed on each length of the pipe to determine whether or not there is a leak. The pressure must be maintained for at least 5 seconds.
  • Weld Seam Ultrasonic or Electromagnetic Test – This non-destructive test is performed throughout the whole length of the weld to check the weld’s integrity.

Type of ASTM A53 Grade B Pipe Ends

  • ASTM A53 Grade B Pipes with diameters less than 0.500 inches and STD / XS pipes with plain or beveled ends
  • ASTM A53 Grade B Pipe schedules greater than 0.500 inches in diameter and XXS: Ends are squared cut and simple.
  • Thread protection is required for pipes larger than 4 inches if they are supplied with threaded ends.ASTM A53 Grade B

Marking Contents of ASTM A53 Grade B Pipes

The following markings must be put to each length of pipe (or bundle for lesser diameters):

  • A53 type manufacturer’s name (S, E, F)
  • Diameter and timetable (from 10 to 160 and XXS)
  • “ASTM A53” designation
  • Heat number
  • Pipe length
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