Import Astm A53 Pipe, Asme Sa53 Pipe — Buy in Bulk from Supplier in China

Astm a53 pipe and asme sa53 pipe from Sunny Steel Tubosacero Ltd. are carbon steel pipes manufactured to the ASTM A53 standard for seamless and welded, black and hot-dipped galvanized nominal wall pipe. The steel is produced by open-hearth, electric furnace, or basic-oxygen processes, with the weld seam of electric-resistance welded pipe in Grade B receiving mandatory heat treatment after welding. The pipes come in three types and two grades, with weight of any length controlled to within plus 10% and minus 3.5% of specified values. NPS 4 and smaller sizes are weighed in lots, while larger sizes are weighed separately by length.

The standard covers pipe for coiling, bending, flanging and other special purposes, and is suitable for welding. Grade A offers lower tensile strength requirements than Grade B, making grade selection dependent on application pressure and mechanical stress. Hot-dipped galvanized finishing provides corrosion resistance for exposed installations, while black finish suits protected or coated applications. The seamless construction method eliminates weld seam variables, though welded variants with post-weld heat treatment meet identical mechanical requirements when properly processed.

Buyers typically source ASTM A53 pipe for structural piling, water transmission, low-pressure steam lines, and general mechanical applications where API or high-pressure specifications are not required. The pipe serves civil engineering contractors, municipal water authorities, and mechanical fabrication shops. Trade from Hebei province, China, ships through Tianjin or Shanghai ports; buyers should confirm mill test certificates, compliance with the specific ASTM A53 edition cited, and whether the order requires supplementary NDE or hydrostatic testing beyond the standard scope.

Sunny Steel Tubosacero Ltd. maintains its registered address at No.273, Siping Road, Hebei, 200081, Shanghai, China. The supplier operates under an imported tier classification and holds a harbor trust tier designation. Response rate data shows 0.00% with zero average response hours recorded, indicating no active response history is visible in the profile. The listing presents ASTM A53 and ASME SA53 pipe products without additional verification badges or third-party audit disclosures.

The company name combines English and Spanish terminology, suggesting export orientation toward Latin American or Iberian markets, though the actual customer base is not disclosed. No manufacturing capacity figures, year of establishment, employee count, or revenue data appears in the available profile. Buyers should conduct independent due diligence on mill relationships, quality system certifications, and production capabilities before committing to orders.