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Brief introduction to ASTM A53 standard

Dec 07, 2023

Brief introduction to ASTM A53 standard


The ASTM A53 standard is one of the most extensively used carbon steel pipe material standards in the oil & gas, structures, constructions, low-pressure plumbing, conveyor rollers, and other process sectors.

ASTM A53 is one of the standards of the American Society for Testing and Materials. The size   range for the pipes is from NPS 1/8” to NPS 26”. The wall thickness of the pipes is also mentioned in the standard -astm a53 pipe Schedule 10, astm a53 pipe Schedule 20, astm a53 pipe Schedule 30, astm a53 pipe Schedule 40, astm a53 pipe Schedule 60, and astm a53 pipe Schedule 80. The various types of finishes available for the ASTM A53 pipes are black and hot-dipped, zinc-coated, welded, and seamless.

A53 pipe comes in three types and two grades, A53 Type F, which is longitudinally furnace butt welded or continuous welded (Grades A and B), A53 Type E, which is longitudinally electric resistance welded (Grades A and B), and A53 Type S, which is seamless pipe, produced by hot working, and possibly cold finishing, the steel (Grades A and B). 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. It can be used for steam, water, and air conveyance. It is also weldable and can be used in structural applications, although ASTM A500 tube, which is available in the same NPS sizes, is sometime preferred.

DIMENSIONS AND SIZES OF ASTM A53 PIPE

Explore the superior performance of our ASTM A53 steel pipes, available in both Schedule 40 and Schedule 80. From the versatility of Schedule 40 to the reinforced strength of Schedule 80, our pipes adhere to the highest standards, promising durability and reliability. Elevate your expectations with a seamless blend of ASTM A53 compliance, offering top-tier quality and performance. .

NPS O.D. Nominal Wall Thickness
DN Inch mm SCH5S SCH10S SCH10 SCH20 SCH30 SCH40 SCH60 SCH80 SCH100 SCH120 SCH140 SCH160 Sth XS XXS
50 2″ 60.3 1.65 2.77 3.91 5.54 8.74 3.91 5.54 11.07
65 2 1/2″ 73 2.11 3.05 5.16 7.01 9.53 5.16 7.01 14.02
80 3″ 88.9 2.11 3.05 5.49 7.62 11.13 5.49 7.52 15.24
90 3 1/2″ 101.6 2.11 3.05 5.74 8.08 5.74 8.08
100 4″ 114.3 2.11 3.05 6.02 8.58 11.13 13.49 6.02 8.56 17.12
125 5″ 141.3 2.77 3.4 6.55 9.53 12.7 15.88 6.55 9.53 18.05
150 6″ 168.3 2.77 3.4 7.11 10.97 14.27 18.26 7.11 10.97 21.95
200 8″ 219.1 2.77 3.76 6.35 7.04 8.18 10.31 12.7 15.09 18.26 20.62 23.01 8.18 12.7 22.23
250 10″ 273.1 3.4 4.19 6.35 7.8 9.27 12.7 15.09 18.26 21.44 25.4 28.58 9.27 12.7 25.4
300 12″ 323.9 3.96 4.57 6.35 8.38 10.31 14.27 17.48 21.44 25.4 28.58 33.32 9.53 12.7 25.4
350 14″ 355.5 3.96 4.78 6.35 7.92 9.53 11.13 15.09 19.05 23.83 27.79 31.75 35.71 9.53 12.7
400 16″ 406.4 4.19 4.78 6.35 7.92 9.53 12.7 16.66 21.44 26.19 30.96 36.53 40.49 9.53 12.7
450 18″ 457.2 4.19 4.78 6.35 7.92 11.13 14.27 19.05 23.83 39.36 34.93 39.67 45.24
500 20″ 508 4.78 5.54 6.35 9.53 12.7 15.09 20.62 26.19 32.54 38.1 44.45 50.01
550 22″ 558.8 4.78 5.54 6.35 9.53 12.7 22.23 28.58 34.93 41.28 47.63 53.98
600 24″ 609.6 5.54 6.35 6.35 9.53 14.27 17.48 24.61 30.96 38.89 46.02 52.37 59.54

 

CHEMICAL COMPOSITION OF ASTM A53 PIPES

 
Elements Type S (Seamless) Grade B Type E (ERW) Grade B
Carbon max. % 0.30* 0.3
Manganese % 1.2 1.2
Phosphorous, max. % 0.05 0.05
Sulfur, max. % 0.045 0.045
Copper, max.% 0.4 0.4
Nickel, max. % 0.4 0.4
Chromium, max. % 0.4 0.4
Molybdenum, max. % 0.15 0.15
Vanadium, max. % 0.08 0.08
 
 

MECHANICAL PROPERTIES OF ASTM A53 PIPES

 
Types and Grades Min. Tensile Strength Min. Yield Strength
Type E and S – ASTM A53 Grade A 330Mpa / 48000psi 205Mpa / 30000psi
Type F – ASTM A53 Grade A 330Mpa / 48000psi 205Mpa / 30000psi

THICKNESS AND MASS TOLERANCE OF ASTM A53 PIPES

 
Item O.D. Over Under
Outside Diameter NPS 1/8 to 1-1/2, DN 6 to 40 ±0.4mm ±0.4mm
NPS 2 and up, DN 50 and up ±1% ±1%
Wall Thickness at Any Point ±12.5%
Weight ±10% ±10%

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