ASTM A53

Overview

ASTM A53 is a specification for carbon steel alloy pipe, which is suitable for welding, bending, and flanging. The ASTM A53 specification covers seamless, welded, black, and hot-dipped galvanized pipe. It is used in a wide range of applications, including but not limited to: refineries, compressor stations, natural gas transmission, steam conduction, and generator plants.

First Distributors Inventory




	Size Range: 1/8" - 48" Diameter


	Grades: A, B


	Schedules: 5, 10, 40 (STD), TRUE 40, 80 (XH), TRUE 80, 100, 120, 160, XXH


	Coatings Available: FBE (Fusion Bond Epoxy), TGF3 (Doped & Wrapped), Blasted & Primed, Others Available Upon Request

Ordering Information




	Required Information for Ordering




	Quantity Feet or number of lengths


	Size NPS (Outside Diameter) and Schedule Number (Average Wall Thickness)


	Construction Seamless or Welded


	Grade Grade A or Grade B


	Type Type E, F, S


	Coating Bare, Black, FBE, etc


	Manufacturer Approved Manufacturer List (AML), or Country of Origin restrictions

Required Information for Ordering
Quantity	Feet or number of lengths
Size	NPS (Outside Diameter) and Schedule Number (Average Wall Thickness)
Construction	Seamless or Welded
Grade	Grade A or Grade B
Type	Type E, F, S
Coating	Bare, Black, FBE, etc
Manufacturer	Approved Manufacturer List (AML), or Country of Origin restrictions

Special Instructions for Order

Special outside diameter tolerance pipe
Test Report Required.
Specification designation
Hydrostatic test

Manufacturing Considerations

General

ASTM A53 pipe is sized according to the nominal pipe size (NPS) system. It is commonly available with national pipe thread ends or with plain cut ends.
The steel for both seamless and welded pipe are derived from one or more of the following processes: open-hearth, electric-furnace, or basic-oxygen.
The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding to a minimum of 1000 °F [540 °C] so that no untempered martensite remains, or otherwise processed in such a manner that no untempered martensite remains.

Wall Thickness (and Weight)

Wall thickness: The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
Weights per foot are plus or minus 10%

Diameter

Outside diameter: Outside diameter at any point shall not vary from standard specified more than:




	 Over Under




	NPS +1/64” -1/64”


	1-1/2 and smaller 1% -1%


	2 and larger

	Over	Under
NPS	+1/64”	-1/64”
1-1/2 and smaller	1%	-1%
2 and larger

Length

A53 seamless and welded steel pipe is produced in random lengths 16’ – 22’ or 32’ – 44’

Galvanizing

Weight of hot-dipped galvanized coating shall not average more than 1.8 oz. per square foot and not less than 1.6 oz. per square foot.

Marking Requirements

Manufacturer may choose to apply stamp via: rolled, die-stamped, ink-printed, or stenciled
Marking shall include: manufacturer’s name, brand, or trademark, in addition to the size, wall, and steel grade.

Types and Grades

There are three types and two grades available for ASTM A53 pipe.




	Type Description Grades Available




	Type E Longitudinally Electric Resistance Welded Grade A & Grade B


	Type F Furnace Butt Weld, Continuous Weld (Not Intended for Flanging) Grade A


	Type S Seamless Grade A (preferred for cold bending) & Grade B

Type	Description	Grades Available
Type E	Longitudinally Electric Resistance Welded	Grade A & Grade B
Type F	Furnace Butt Weld, Continuous Weld (Not Intended for Flanging)	Grade A
Type S	Seamless	Grade A (preferred for cold bending) & Grade B

Mechanical Properties (Seamless & ERW)




	 Grade A Grade B




	Minimum Tensile Strength (PSI) 48000 60000


	Yield Strength 30000 35000

	Grade A	Grade B
Minimum Tensile Strength (PSI)	48000	60000
Yield Strength	30000	35000

Chemical Requirements (Seamless & ERW)




	 (max %)




	 Carbon Manganese Phosphorous Sulfur Copper Nickel Chromium Molybdenum Vanadium


	Grade A 0.25 0.95 0.05 0.045 0.4 0.4 0.4 0.15 0.08


	Grade B 0.3 1.2 0.05 0.045 0.4 0.4 0.4 0.15 0.08

	(max %)
	Carbon	Manganese	Phosphorous	Sulfur	Copper	Nickel	Chromium	Molybdenum	Vanadium
Grade A	0.25	0.95	0.05	0.045	0.4	0.4	0.4	0.15	0.08
Grade B	0.3	1.2	0.05	0.045	0.4	0.4	0.4	0.15	0.08

Testing Requirements

Hydrostatic Tests:

Hydrostatic Testing: Hydrostatic pressure is maintained for a minimum of five seconds for all sizes of seamless and welded A53 pipe.

Mechanical Tests:

Tensile Test: Two transverse tests required on the ERW for NPS 8 and larger, one across the weld and one opposite the weld.
Flattening Test: On ERW for NPS 2 and larger, STD and XH wall (not required for XXH pipe)
Bending Test (cold): For NPS 2 and under, XH wall and under; for NPS 1-1/4 and under, XXH wall




	 Degree of Bend Diameter of Mandrel




	 90 12 x nom dia. of pipe


	For Normal A53 Uses 180 8 x nom dia. of pipe


	For Close Coiling

	Degree of Bend	Diameter of Mandrel
	90	12 x nom dia. of pipe
For Normal A53 Uses	180	8 x nom dia. of pipe
For Close Coiling

Number of Tests Required

Seamless and Electric-Resistance-Welded — Bending, flattening, tensile on one length of pipe from each lot of 500 lengths or less of a size. Continuous-Weld — Bending, flattening, tensile

NPS 1 1/2 & smaller
NPS 2 & larger
one / 25 tons
one / 50 tons

Manufacturers




	Domestic ERW (Electric Resistance Welded)  2” through 26” Foreign ERW (Electric Resistance Welded) 1/8" through 72" DSAW Pipe (Double Submerged Arc Welded) 24” through 72”




	American Steel Pipe Evraz (Canada) Berg (Domestic)


	Atlas Tube Husteel (South Korea) Confab (Brazil)


	Boomerang Hyundai  (South Korea) Durabond (Domestic)


	Independence Tube JFE (Japan) Evraz (Canada)


	Northwest Pipe Nippon- Sumitomo (Japan) Husteel  (South Korea)


	Paragon Pytco (Mexico) Hyundai  (South Korea)


	Southland Tube Salzgitter- Mannesmann (Germany) JFE (Japan)


	Stupp Corporation Seah Steel (South Korea) JSW (Domestic)


	Tenaris Tata (UK) LLVA (Italy)


	TexTube Nippon- Sumitomo (Japan)


	TMK Ipsco Seah Steel  (South Korea)


	US Steel Sumitomo  (Japan)


	Welspun Tata (UK)


	Wheatland