The production process of straight seam API 5L X60 PSL1 welded steel pipe is relatively simple. The main production processes include high frequency welded straight seam steel pipe and submerged arc welded straight seam steel pipe
The strength of the spiral API 5L X60 PSL1 welded steel pipe is generally higher than straight seam API 5L X60 PSL1 welded steel pipe, the main production process is submerged arc welding. Different diameter API 5L X60 PSL1 spiral steel pipes can be produced with same width pipe billets. And we can also use a narrower billet to produce larger diameter API 5L X60 PSL1 spiral pipe.
However, compared with same length straight seam API 5L X60 PSL1 welded steel pipe, the weld length of API 5L X60 PSL1 is increases by 30-100%, and the production speed is low.
Therefore, the API 5L X60 PSL1 welded steel pipe with smaller diameter is mostly welded by straight seam, while the welding pipe with larger diameter is mostly welded by spiral.
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