Seamless pipe vs Welded pipe Cost

Seamless pipe VS welded pipe, which one is more expensive?

1. Production process

Seamless steel pipes are produced by heating steel billets to a specific temperature and processing them through perforation, plugging, hot rolling, and other methods. Welded steel pipes, on the other hand, are created by connecting steel plates through a welding process. The production process has a significant impact on costs. Seamless steel pipes are produced with precision, resulting in a higher cost compared to welded steel pipes which have a simpler production process and are more affordable.

2. Quality requirements

Seamless steel pipes have high quality requirements, including a smooth appearance, no burrs, and no internal defects. To ensure high quality, raw materials and precision processing are necessary, resulting in a higher price. However, defects such as cracks and pores are difficult to avoid in welded steel pipes due to production limitations.

3. Service life

Seamless steel pipes have higher strength indicators such as compression resistance and tensile strength than welded steel pipes, and have a longer service life.

4. Market demand

Seamless steel pipes find extensive usage in industries such as petroleum, chemical, machinery, and rail transit. Due to their specific applications and quantity requirements, their price is relatively high. On the other hand, welded steel pipes are relatively cheaper due to market competition and demand.

In general, seamless steel pipes are more expensive than welded ones. Although seamless steel pipes have higher production process and quality requirements and are more specialized in the market, it cannot be assumed that welded steel pipes are always cheaper. The cost-effectiveness of welded steel pipes should be evaluated based on specific circumstances.