ASTM A53 Grade A
TUSPIPE supplies ASTM A53 Grade A pipes fully certified to meet the A53 mechanical and chemical requirements. This guarantees stable performance for low-pressure and structural applications, giving customers reliable quality from the start.
ASTM A53 Grade A
ASTM A53 Grade A pipe (also known as an ASME SA53 pipe) is intended for mechanical and pressure applications, although it may also be used in general in steam, water, gas, and airlines. It is suitable for welding as well as shaping operations like coiling, bending, and flanging under certain circumstances.
ASTM A53 is one of the standards of the Société américaine pour les essais et les matériaux. ASTM A53 Grade A welding and coverings are best done with a pipe. Seamless and welded nominal (average) wall pipe in black and hot-dipped galvanized for coiling, bending, flanging, and other particular operations. The continuous-welded pipe should not be flanged. On the order, the purpose for which the pipe is designed should be indicated.
Pourquoi choisir tuspipe ?
Depuis 1998, Tianjin United Steel Piping Co., Ltd (TUSPIPE) s'engage à fournir des tubes de canalisation de haute qualité.
Avec une capacité de production annuelle de plus de 500 000 tonnes, l'entreprise dessert divers domaines et industries, tels que l'exploitation et la transmission du pétrole et du gaz, la construction navale et automobile, l'eau et l'électricité, la protection de l'environnement, l'ingénierie mécanique, la construction d'infrastructures, etc.
TUSPIPE accorde une grande importance à la qualité des produits et à leur contrôle rigoureux. Afin de maintenir une bonne qualité des produits, l'entreprise a mis en place un centre d'essai et d'inspection depuis 2004. Doté d'une série d'équipements d'essai et d'inspection de pointe, le centre d'essai et d'inspection est en mesure d'effectuer des essais de traction, des essais hydrauliques, des essais d'impact, des essais DWTT, etc.
Types of ASTM A53 Grade A Pipes
- ASTM A53 Grade A Type E – Electric Resistance Welded Pipe.
The heat generated by electric resistance between the pipe’s opposing ends welds the longitudinal connection of Type E Garde A and Garde B pipes. A set of rollers is also utilized in this procedure to join heated ends. After welding, the weld seam of Grade pipes is heat-treated to a minimum of 540°C.
- ASTM A53 Grade A Type S – Seamless Pipe
The extrusion process is used to manufacture Type S pipes. The raw steel used to manufacture pipes is produced using an open-hearth furnace, an electric furnace, or a basic-oxygen method.
- ASTM A53 Grade A Type F – Forge Welding Pipe
The Type F Grade A pipe is produced from a continuous coil, and the longitudinal junction is welded by forge welding. Sets of rollers are employed in this procedure to apply mechanical pressure to the heated ends of the coil.
Dimensions and Sizes of ASTM A53 Grade a Pipe
| NPS | O.D. | Épaisseur nominale de la paroi | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DN | Pouce | 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 Grade A Pipes
| Elements | Type S (Seamless) Grade A | Type E (ERW) Grade A | Type F (Forge Welding) Grade A |
|---|---|---|---|
| Carbon max. % | 0.25 | 0.25 | 0.3 |
| Manganese % | 0.95 | 0.95 | 1.2 |
| Phosphorous, max. % | 0.05 | 0.05 | 0.05 |
| Sulfur, max. % | 0.045 | 0.045 | 0.045 |
| Copper, max.% | 0.4 | 0.4 | 0.4 |
| Nickel, max. % | 0.4 | 0.4 | 0.4 |
| Chromium, max. % | 0.4 | 0.4 | 0.4 |
| Molybdenum, max. % | 0.15 | 0.15 | 0.15 |
| Vanadium, max. % | 0.08 | 0.08 | - |
Mechanical Properties of ASTM A53 Grade A Pipes
| Types and Grades | Min. Tensile Strength | Min. Limite d'élasticité |
|---|---|---|
| Type E and S – ASTM A53 Grade A | 330Mpa / 48000psi | 205Mpa / 30000psi |
| Type F – ASTM A53 Grade A | 330Mpa / 48000psi | 205Mpa / 30000psi |
Test & Inspection During ASTM A53 Grade A Pipe Production
- Analyse chimique - Nombre d'essais : 2 pièces par lot de 500 ou 2 pièces par chaleur (si l'un des tuyaux est défaillant, deux pièces supplémentaires du même lot doivent être testées).
- Essai de traction - Cet essai est effectué pour évaluer les propriétés mécaniques du tuyau. Dans le cas d'un tube soudé, la résistance de la soudure ne doit pas être inférieure à la résistance du corps du tube.
- Bending Test – On pipe diameters NPS 2 and less, a bending test is performed to determine the ductility of the pipe. The bend test could be 90 degrees or 180 degrees, depending on the situation.
- Test d'aplatissement – For ductility, pipe sizes greater than NPS 2 are flattening test. In line with ASTM A53, a pipe sample is sliced and flattened between two flat surfaces.
- Hydro-Test – This is a test that is performed on each length of the pipe to determine whether or not there is a leak. The pressure must be maintained for at least 5 seconds.
- Weld Seam Ultrasonic or Electromagnetic Test – This non-destructive test is performed throughout the whole length of the weld to check the weld’s integrity.
Thickness and Mass Tolerance of ASTM A53 Grade A Pipes
| Objet | O.D. | Plus de | Sous |
|---|---|---|---|
| Diamètre extérieur | NPS 1/8 à 1-1/2, DN 6 à 40 | ±0,4 mm | ±0,4 mm |
| NPS 2 et plus, DN 50 et plus | ±1% | ±1% | |
| Épaisseur de la paroi en tout point | - | ±12,5% | |
| Poids | ±10% | ±10% | |
Type of ASTM A53 Grade A Pipe Ends
- Pipes with diameters less than 0.500 inches and STD / XS pipes with plain or beveled ends are examples of ASTM A53 pipe ends.
- Pipe schedules with diameters higher than 0.500 inches and XXS: Ends are squared cut and simple.
- Thread protection is necessary for pipes bigger than 4 inches in diameter that have threaded ends.
ASTM A53 Grade A Pipe Marking Contents
The following marks must be applied to each length of pipe (or bundle for smaller diameters):
- A53 type manufacturer’s name (S, E, F)
- Dimensions and timetable (from 10 to 160 and XXS)
- The designation “ASTM A53”
- The heat number
