A36 steel pipes are widely used in construction for building water supply and drainage pipelines, residential heating pipes, and temporary engineering structural support pipes, as their good weldability and basic pressure-bearing capacity meet the needs of civil infrastructure scenarios. In municipal engineering, they are applied to urban low-pressure water supply networks, rainwater drainage systems, and street lamp pole support pipes, benefiting from cost-effectiveness and adaptability to outdoor environments. They also find use in machinery manufacturing (for non-high-pressure equipment oil pipelines and protective sleeves), the agricultural sector (for farmland irrigation pipes and sprinkler system pipelines), and light industry (for auxiliary material conveying pipes in food processing and textile factories), serving as a versatile material for general industrial and civil medium transmission and basic structural support needs.