ASTM A53

ASTM A53 standard refers to seamless and welded black and hot-dipped galvanized steel pipe.

ASTM A53 Gr.B Pipes
结构用无缝钢管

Size (mm):

Steel grade:
ASTM A53 Grade.A; Grade.B

Mill test certificates will be issued according to EN10204/3.1B .

Application:
For mechanical and pressure use, and also for transporting steam, water, gas and etc.

The steel categorized in this standard must be open-hearth, basic-oxygen or electric-furnace processed and must have the following chemical requirements: carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum, and vanadium.

The tubing shall undergo a seamless or welding process. Tension, bend, and flattening tests shall be performed to make sure that it must adhere to the mechanical properties of the standard.

Packing ASTM A53 pipes

Mechanical properties:

 Standard  Grade  Tensile strength(MPa)  Yield strength (MPa)
 ASTM A53  A  ≥330  ≥205
 ASTM A53  B  ≥415  ≥240

Chemical requirements:

Element Type S
(seamless)
Grade A Grade B
Carbon max. % 0.25 0.30
Manganese % 0.95 1.2
Phosphorous, max. % 0.05 0.05
Sulfur, max. % 0.045 0.045
Copper, max.% 0.40 0.40
Nickel, max. % 0.40 0.40
Chromium, max. % 0.40 0.40
Molybdenum, max. % 0.15 0.15
Vanadium, max. % 0.08 0.08

The hydrostatic test shall be applied, without leakage through the weld seam or the pipe body. Nondestructive electric test shall be made to make sure that the full volume of the pipe must be in accordance with the standard.

The purchaser shall have the right to perform any of the inspections and tests set forth in this specification where deemed necessary to ensure that the pipe conforms to the specified requirements.

SEAMLESS SPOOL-PIPE, FLANGED ASTM A.53
SEAMLESS SPOOL-PIPE, FLANGED ASTM A.53

Weled steel pipe specification, Standard and identification

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.

Figure1
Hot dip galvanizing

Galvanized pipe process characteristics

What is Galvanized Steel Pipe? Galvanized steel can be made into a strong plumbing or tubing material -- one that resists corrosion from exposure to water or the elements. It has been used used for water-supply pipes or as a strong tubing for outdoor applications.



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