Metal Tubular Products ASTM A53 Pipe (also referred to as ASME SA53 pipe) is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending, and flanging, Subject to certain qualifications.
ASTM A53 Pipe covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. Continuous-Welded pipe is not intended for flanging. Purpose for which pipe is intended should be stated on order. 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 A 53 is intended for pressure and mechanical applications and is also acceptable for ordinary uses in steam, water, gas, and air lines
A53 pipe comes in three types and two grades, A53 Type F, which is longitudinally furnace butt welded or continuous welded (Grade A only),A53 Type E, which is longitudinally electric resistance welded (Grades A and B), andA53 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
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Specification:
Sizes (Seamless): 1/2" NB - 60" NB
Sizes (ERW): 1/2" NB - 24" NB
Sizes (SAW): 16" NB - 100" NB
Schedule 20 - Schedule XXS (heavier on request) up to 250 mm thickness.
Chemical Composition of A53 GR. B CARBON STEEL PIPE
| - | Grade A | Grade B | Grade A | Grade B | Grade A |
| Carbon max. % | 0.25 | 0.30 | 0.25 | 0.30 | 0.3 |
| Manganese % | 0.95 | 1.2 | 0.95 | 1.2 | 1.2 |
| Phosphorous, max. % | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Sulfur, max. % | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| Copper, max.% | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
| Nickel, max. % | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
| Chromium, max. % | 0.40 | 0.40 | 0.40 | 0.40 | 0.4 |
| Molybdenum, max. % | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| Vanadium, max. % | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 |
Mechanical Properties of A53 GR. B CARBON STEEL PIPE
| Property | Value |
| Tensile Strength | 415 MPa (min) |
| Yield Strength | 240 MPa (min) |
| Elongation | 30% (min) |
Advantages of A53 GR. B CARBON STEEL PIPE
- Good general corrosion resistance and high strength
- Good sulfide stress corrosion resistance
- Resistance to chloride pitting and crevice corrosion
- Higher resistance to chloride stress corrosion cracking
- Easy to weld and conform
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