ASTM A312 TP304 Stainless Steel Pipe, available in seamless and welded construction. Our TP304 stainless steel seamless pipes offer excellent corrosion resistance, high tensile strength, and good weldability. Manufactured to ASTM A312, ASME SA312 standards, these pipes are ideal for chemical processing, food industry, pharmaceutical, and architectural applications. Sizes range from 1/4 to 24 inches NPS, with wall thickness schedules SCH10 through SCH80S. Surface finishes include pickled, polished 320 grit, and bright annealed. Each pipe is hydrostatically tested and certified with mill test reports.