The execution standard for spiral steel pipes used for pile driving is SY5040-83. It is made of hot-rolled steel strip coils as pipe billets, which are often spiral formed at high temperatures, and are made by double-sided submerged arc welding or high-frequency welding. Spiral steel pipes for pile driving are used for foundation piles in civil construction structures, docks, bridges, and other areas. If spiral steel pipes are used as pile pipes, the materials are generally Q235B and Q355B, and the main difference between these two materials is in hardness