A53 Welded Tube
A53 covers seamless and welded, black and hot-dip galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes suitable for welding. Continuously welded pipe is not suitable for flanging. The purpose of the pipe should be stated in the order.
ASTM A53 steel pipe is widely used in construction sites and underground transportation.
For example: it can be used as a fluid pipeline to pump water from underground. It is used as a pipeline for gas and oil transportation and in hydroelectric power stations. It is also used as structural steel for mechanical parts. After coating with zinc, it can be used in wind power plants.
| Type S (seamless) |
Type E | Type F | ||||||
| (electric- resistance welded) |
(furnace- welded 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 | |||
Permissible Variation in Wall Thickness
The minimum wall thickness at any point shall not exceed 12.5% of the specified nominal wall thickness.
Permissible Variation in Weight Per Foot
Plus or minus 10%
Permissible Variation in Outside Diameter
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