API welding standard

 

 

1104 API:

The most important standard for welding pipelines is API 1104 standard.

1111 API:

This standard is for designing, recognizing and repairing OFFSHORE structural pipelines.

1110 APL:

This standard is used to inspect and test transmission pipelines.

598 API:

This standard is used to inspect pipes.

572 API RP:

This standard is used to inspect and test pressure vessels.

API 20D:

This standard is limited to examining and conducting NDT tests for oil and gas equipment.

582 API:

This standard examines welding methods in the oil and gas industry.

577 API:

Welding and inspection issues are covered in this standard.

All of the above standards are used in writing WPS. A welding engineer prepares welding instructions using a welding standard.

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