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The LSAW pipe diameter range is larger than ERW, normally from 16 inch to 60 inch, 406mm to 1500mm. Good performances on high pressure resistance, and low-temperature corrosion resistance same as well.
ERW Carbon Steel Pipe (electric resistance welding) is produced by welding strip of flat sheet metals.
That are formed, bent and prepared for welding. After that, making galvanization treatment to help prevent corrosion, rust, thereby extending the pipe life.
Welded Steel Pipe is available in A53, BS1387 and API 5L specification. Welded carbons steel is the most cost effective solution for a high quality pipe with pressure integrity test.
| Carbon Steel A53 GR.B Pipe Composition | |||||
| Manufacturer and supplier of ASTM A53 Steel Pipes in Type E/ F and Type S | |||||
| Type S (seamless) | Type E (electric-resistance welded) | Type F (furnace- welded pipe) | |||
| Grade A | Grade B | Grade A | Grade B | Grade A | |
| Carbon max. % | 0.25 | 0.3 | 0.25 | 0.3 | 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.% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Nickel, max. % | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Chromium, max. % | 0.4 | 0.4 | 0.4 | 0.4 | 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 |
| ASTM A53 Gr.b Carbon Steel Pipe Mechanical & Physical Properties | |||
| A53 Mechanical Properties | |||
| Grade A | Grade B | Grade C | |
| Tenside strength, min, psi (MPa) | 48000(330) | 60000(415) | |
| Yield strength, min, psi (MPa) | 30000(205) | 35000(240) | |
| Tensile Requirements | |||
| Seamless and Electric-resistance-welded (ERW) | Continuous-Welded | ||
| Grade A | Grade B | ||
| Tensile Strength, min., psi | 48,000 | 60,000 | 45,000 |
| Yield Strength, min., psi | 30,000 | 35,000 | 25,000 |
Oil and Gas field.
Water and other liquid transportation.
Steel structures.
The LSAW pipe diameter range is larger than ERW, normally from 16 inch to 60 inch, 406mm to 1500mm. Good performances on high pressure resistance, and low-temperature corrosion resistance same as well.
ERW (Electric Resistance Welded) pipes are made by welding metal longitudinally and can be from various steels, used in high-pressure applications. MS (Mild Steel) pipes are specifically made from mild steel, known for ductility and weldability, and are used in low-pressure applications. ERW is a process; MS is a material.
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