Welded Steel Pipe

ASTM A53 Welded Steel Pipe

ASTM A53 (ASME SA53) carbon steel pipe is a specification that covers seamless and welded black and hot-dipped galvanized steel pipe in nps 1/8″ to nps 26. ASTM A53 steel pipe is intended for pressure and mechanical applications and is also acceptable for ordinary uses in steam, water, gas, and air lines.

Sizes: 1/2” to 20”

Thickness: Schedule 10, 40, STD, XS, to XXS

Ends: Plain, Beveled, Threaded

Length: 20 ft, 40 ft, customized

Coating: 3PE, FBE, Varnished, Black, Zinc Coated

Standard

Specification

Applications:

ASTM A53 Steel Pipe is vastly used in construction sites and underground transportation.

For example: it can be used to draw water from the ground as fluid pipe. It is used as pipeline pipes for gas and oil transmission as well as water power station, it is also used as structural steel in machinery parts, after coated with zinc, it is used in wind power plant.


Specification:

Specifications

ASTM A53 ASME SA53

Dimensions

ASTM, ASME and API

Size

1/2" NB to 36" NB

Thickness

3-12mm

Schedules

SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

Type

Seamless / ERW / Welded / Fabricated

Form

Round, Hydraulic Etc

Length

Min 3 Meters, Max18 Meters, or according to customer's requirement

End

Plain End, Beveled End, Treaded


Chemical Compostions:

ASTM A53

Type E

Type F

Chemical Composition

(electric-
resistance welded)

(furnace-
welded pipe)


Grade A

Grade B

Grade A

Carbon max. %

0.25

0.30

0.3

Manganese %

0.95

1.2

1.2

Phosphorous, max. %

0.05

0.05

0.05

Sulfur, max. %

0.045

0.045

0.045

Copper, max.%

0.40

0.40

0.4

Nickel, max. %

0.40

0.40

0.4

Chromium, max. %

0.40

0.40

0.4

Molybdenum, max. %

0.15

0.15

0.15

Vanadium, max. %

0.08

0.08

0.08


Tensile Requirements for Seamless and Welded ASTM A53 Pipe:

Grade ASTM A53

Seamless Pipes and Electric-resistance-welded Pipes

Continuous-Welded Pipes

Mechanical Property

Grade A

Grade B


Tensile Strength, min., psi

48,000

60,000

45,000

Yield Strength, min., psi

30,000

35,000

25,000


Test Requirements for ASTM A53 Steel Pipes:

Test Types

ASTM A53 Pipe Test Details

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.

Hydrostatic Testing

Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.

Mechanical Tests Specified

Tensile Test — Transverse required on ERW for NPS 8 and large. Sending Test (Cold) — STD and XS-NPS 2 and under XXS-NPS 1 1/4 and under.

Process

The manufacturing process differs depending on the particular type and grade of ASTM A53 that it is.  The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic oxygen. The weld seam of the electric-resistance welded pipe in Grade B shall be heat treated after welding.

Packing

  • Loose + groove protector + two nylon slings +  cross steel frame

    Loose + groove protector + two nylon slings + cross steel frame

  • Loose + groove protector + two nylon slings + cross steel frame

    Loose + groove protector + two nylon slings + cross steel frame

  • Loose + two nylon slings + cross steel frame

    Loose + two nylon slings + cross steel frame

  • OD 219mm and above (Loose) Loose + pipe cap + two nylon slings

    OD 219mm and above (Loose) Loose + pipe cap + two nylon slings

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