Welded Pipes ASTM A530
Section Shape:Round
Surface Treatment:polish
Tolerance:±5%
Delivery Time:31-45 days
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Products Description
Welded tubes are manufactured by welding flat steel strips into tubes. The strip is first passed through a series of rollers that form it into a circular shape. The edges of the strip are then welded together to form a seam. Welded pipe can be made from a variety of materials including carbon steel, stainless steel, and alloy steel.
Outside diameter tolerances for Welded Pipes ASTM A530
| PIPE NPS/ DN/ OD | Allowed Outside Diameter Tolerance | |||
| Over | Under | |||
| inches | mm | inches | mm | |
| NPS 1/8 to 1.1/2 DN 6 to 40 OD 10.3 to 48.3 mm |
1/64 | 0.4 | 1/64 | 0.4 |
| Over 1.1/2 to 4 DN 40 to 100 OD 48.3 to 114.3 mm |
1/32 | 0.8 | 1/32 | 0.8 |
| Over 4 to 8 DN 100 to 200 OD 114.3 to 219.1 mm |
1/16 | 1.6 | 1/32 | 0.8 |
| Over 8 to 18 DN 200 to 450 OD 219.1 to 457 mm |
3/32 | 2.4 | 1/32 | 0.8 |
| Over 18 to 26 DN 450 to 650 OD 457 to 660 mm |
1/8 | 3.2 | 1/32 | 0.8 |
Welded pipes are widely used in various industries, such as:
1. Oil and gas industry: Welded pipes are widely used in oil and gas industry for transportation of crude oil and natural gas.
2. Automobile industry: Exhaust systems and pressure pipes in automobiles are usually made of welded pipes.
3. Construction industry: Welded pipes are used in the construction of buildings, bridges and pipelines.
4. Water treatment industry: Water pipes used in water treatment facilities are usually made of welded pipes.
5. Aerospace industry: Welded pipes are used in the construction of aircraft engines, fuel systems and hydraulic systems.
GNEE Certification
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