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Carbon Steel Pipe A53

ASTM A53 PIPE

A53 pipes convey fluids at low/medium pressures and are also used for mechanical applications. An A53 pipe can be welded, flanged and shaped as necessary, is available in three main types (“F”, i.e. continuos welding/longitudinal furnace butt welded not suited for flanging, “S” seamless hot rolled and cold finished, and “E” ERW).

ASTM A53/ASME SA 53 carbon pipes are available in the size range 1/4 to 30 inches and schedules 10 to 160, both in seamless and welded execution, black and hot-dip galvanized (HDG).


TOLERANCES

1, The tolerances for ASTM A53 – ASME SA53 pipes are:
2, Wall thickness: the thickness of the pipe (“WT”) shall be, at any point, not less than the nominal pipe size minus 12.5% (a wt of NPS -13% would not be, for instance, acceptable) weight per foot: + / – 10%


PIPE END TYPES

1, Pipe schedule below 0.500 inches and schedule STD / XS pipes: plain or beveled ends
2, Pipe schedule above 0.500 inches and schedule XXS: Squared cut plain ends. If pipes are supplied with threaded ends, protection for threads is mandatory for pipes above 4 inches.

A53 PIPE PROPERTIES

ASTM A53 CHEMICAL COMPOSITION

Maximum values in %

Type S
(Seamless)

Type E
(ERW)

Type F
(Furnace Weld)

A53 Pipe Grade–>

Grade A

Grade B

Grade A

Grade B

Grade A

Carbon

0.25

0.3

0.25

0.3

0.3

Manganese

0.95

1.2

0.95

1.2

1.2

Phosphorous

0.05

0.05

0.05

0.05

0.05

Sulfur

0.045

0.045

0.045

0.045

0.045

Copper

0.4

0.4

0.4

0.4

0.4

Nickel

0.4

0.4

0.4

0.4

0.4

Chromium

0.4

0.4

0.4

0.4

0.4

Molybdenum

0.15

0.15

0.15

0.15

0.15

Vanadium

0.08

0.08

0.08

0.08

0.08


A53 Gr. A/B PIPE MECHANICAL PROPERTIES

Seamless and ERW

A53 Grade A

A53 Grade B

Tensile Strength, min, psi

48,000

60,000

Yield Strength

30,000

35,000


A53 PIPE PHYSICAL PROPERTIES

Density at 20 °C
Kg/dm³

Modulus of elasticity kN/mm² at

Thermal conductivity at 20 C°
W/m K

Spec. thermal capacity at 20 C°
J/kg K

Spec. electrical resistivity at 20 °C
Ω mm²/m

20 C°

300 C°

400 C°

450 C°

7,85

210

192

184

179

51

461

0,20


HOT FORMING AND HEAT TREATMENT

Hot forming

Heat treatment

Temperature °C

Type of cooling

Normalizing 1)

Stress-relieving anneal 2)

Type of cooling

1100 – 950

Air

890 – 950 °C

600 – 650 °C

Air

Notes:
1) Normalizing: Holding time 1 minute per mm plate thickness, a minimum of 30 minutes
2) Stress-relieving anneal: Holding time 1-2 minutes per mm plate thickness, minimum of 30 minutes

Factory Display

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Application Field

Oil & Gas
Oil & Gas
Chemical Industry
Chemical Industry
Marine Engineering
Marine Engineering
Construction Industry
Construction Industry
Power Generation
Power Generation
Machinery industry
Machinery industry