ASTM A53-Uncoated and hot-dip galvanized welded and seamless nominal steel pip
Introduction of ASTM A53

ASTM A53(also referred to as ASME SA53 pipe) is a carbon steel alloy, which can be used as structural steel or for low-pressure pipelines and is also acceptable for ordinary uses in steam, water, gas and air lines.The alloy specifications are set by ASTM International in the specifications ASTM A53 / A53M.

ASTM A53 Steel Pipe Specifications

A53 pipe comes in three types (F, E, S) and two grades (A, B).

A53 Type F is manufactured with a furnace butt weld or may have a continuous weld (Grade A only)

A53 Type E has an electric resistance weld (Grades A and B)

A53 Type S is a seamless pipe and found in Grades A and B)

A53 Grade B Seamless is our most polar product under this specification and A53 pipe is commonly dual certified to A106 B Seamless pipe.

Federal Steel Supply has a full range of stock in A53 steel pipe (SA53 steel pipe) in:

Grade B


NPS ¼” to NPS 26” O.D.

Wall thickness: Schedules 10 through 160, STD, XH and XXH
Commonly requested unscheduled walls up to 4” and certified minimum wall items

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)

Production process

Seamless steel pipe manufacturing process is divided into hot-rolled and cold seamless pipe.

1.Production process of hot-rolled seamless steel pipe: tube billet → heating → perforation → three-roller/cross-rolling & continuous rolling → de-pipe → sizing → cooling → straightening → hydraulic test → marking → seamless steel pipe with leverage effect Detected.

2. Production process of cold drawn seamless steel tubes: tube blank → heating → perforation → heading → annealing → pickling → oiling → multiple cold drawing → blank tube → heat treatment → straightening → hydraulic test → marking → storage.

Tips:Seamless pipe is often made by drawing a solid shape over a mandrel to form the configuration of a tube. Welded pipe is more commonly made by rolling a flat strip of material into a tube and joining the edges together with a longitudinal weld. The weld can be made by either Electric Resistance Welding (Type E) or by Furnace Butt Welded/Continuous Welding (Type F).


1.Construction: the pipeline underneath, the groundwater, and the hot water transportation.

2.Mechanical processing, bearing sleeves, processing machinery parts, etc.

3. Electrical: Gas delivery, Hydroelectric power fluid pipeline
4.Anti-static tubes for wind power plants, etc.

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