ITT Grinnell
Grinnell - Model A53 -Seamless and Welded Standard Pipe
FromITT Grinnell
Specification A53 covers seamless and welded, black and hot-dipped galvanized nominal (average) wall pipe for colling, bending, flanging and other special purposes and is suitable for welding. COmParatiVe SPeCiFiCatiOnSthe following information is summarized from aStm standards and aPi Specification 5L in effect at the time of publication. Please refer to the specific standards or specifications for more details
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Testing Requirements
- Hydrostatic Testing
- Hydrostatic inspection test pressures tor plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than B seconds for all sizes of Seamless and £ R w pipe.
Mechanical Tests
- Tensile Test - Two transverse tests required on 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 walls (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