The fixed length of SSAW steel pipe

The standard fixed lengths for SSAW (Spiral Submerged Arc Welded) pipes are typically 6 meters, 12 meters, and 18 meters. These lengths are selected based on production requirements. Generally, shorter lengths are preferred for smaller pipes, while longer lengths are chosen for larger pipes.

Factors Influencing the Fixed Length of Spiral Welded Pipes

- Use of Steel Pipe

Ventilation Ducts: Pipes used inside buildings for ventilation are usually shorter, hence the fixed lengths are also shorter.

Large Engineering Projects: Pipes used in large-scale projects, such as natural gas pipelines, are typically longer.

- Production Process

Material Efficiency: Using shorter fixed lengths can minimize waste and reduce costs but may increase the number of joints and construction complexity.

Selecting the Fixed Length of Spiral Welded Pipes

When choosing the fixed length of spiral welded pipes, several factors must be considered, including the intended use, production process, cost, and construction difficulty. Generally, the fixed length should be as short as possible to reduce costs and material waste, provided it does not impact the construction process. For large orders, the fixed length can be adjusted based on usage, inventory, and other logistical considerations.

Relationship Between Fixed Length and Price of Spiral Welded Pipes

The production yield of fixed-length pipes is lower than that of pipes with standard lengths, justifying a price increase by manufacturers. The typical price increase is about 10% above the base price, though this can vary among manufacturers.

Fixed lengths must fall within the standard length range and comply with contract specifications. Absolute precision in cutting fixed lengths is not feasible; hence, standards allow for a positive deviation. If length deviation and cutting allowances are not specified in the standard, they should be negotiated and documented in the contract.

Conclusion

Fixed lengths for spiral welded pipes are generally 6 meters, 12 meters, and 18 meters, based on production needs. Selecting the appropriate fixed length involves a comprehensive consideration of factors such as pipe usage, production technology, cost, and construction difficulty.