Shanghai Bozhong Metal Group Co. Ltd

Model Number: WLP017 Brand Name: BOZHONG GROUP Key Specifications/Special Features: ASTM/ASME A53/SA53 seamless and welded steel pipeis a general, all-purpose pipe used in generator plants, refineries, compressor stations, natural gas transmission, and steam conduction. It is acceptable for welding, flanging, and bending.A53 comparative specificationsASTM specification A53 covers seamless and welded, black and hot-dipped galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding.Testing requirements for seamless and welded API 53 steel pipeHydrostatic testingtest pressures for plain and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and ERW pipe.

Mechanical tests:

• Tensile test: Two transverse tests required on the ERW for NPS 8 and larger, one across the weld and one opposite the weld.
• Flattening test: On ERW for NPS 2 and larger, STD and XS wall (not required for XXS pipe)
• Bending test (cold): For NPS 2 and under, XS wall and under; for NPS 1-1/4 and under, XXS wall