ISO 3183-2012 pdf free download.Petroleum and natural gas industries – Steel pipe for pipeline transportation systems.
— sensitivity of properties to rolling practice:
— appropriate coil/plate cropping distances;
— tensile property changes inherent in pipe forming.
The permissible ranges of critical variables for coil/plate rolling practice shall be documented.
8.3.8 For welded pipe with delivery condition M. the ability of the coil/plate rolling practice to achieve planned results consistent with 8.3.7 shall be verified as follows.
— Representative coil/plate and pipe manufacturing trials or historical data of coil/plate and/or pipe properties and processing conditions shall demonstrate that, within the ranges permitted by documented limits of the rolling practice, the consistent required pipe properties are achieved.
— For grades higher than L360M or X52M, the pipe manufacturer shall conduct or shall have previously conducted an on-site technical audit of the coil/plate mill and periodic on-site or remote confirmation that the coil/plate rolling practice continues to achieve the planned results. Coil/plate rolling practice validation criteria shall be verified as part of the audit.
8.3.9 Hot rolling practice process deviations from the manufacturers documented limits shall be qualified through documented practices either in the hot rolled material by mechanical testing to defined limits and/or in the pipe form by designating that material as a new test unit.
8.4 Tack welds
8.4.1 Tack welds shall be made by
a) semi-automatic submerged-arc welding,
b) electric welding,
C) gas metal-arc welding.
d) flux-cored arc welding.
e) shielded metal-arc welding using a low hydrogen electrode, or
f) laser welding.
8.4.2 Tack welds shall be
a) melted and coalesced into the final weld seam.
b) removed by machining, or
c) treated in accordance with Clause C.2.
8.5 Weld seams In COW pipe
For the production of weld seams in COW pipe, the first pass shall be continuous and made by gas-metal arc welding followed by submerged-arc welding, with at least one submerged-arc welding pass made on the inside of the pipe and at least one submerged-arc welding pass made on the outside of the pipe, wherein the gas- metal arc weld bead is not completely removed by the submerged-arc welding passes.
8.6 Weld seams In SAW pipe
For the production of weld seams in SAW pipe, at least one submerged-arc welding pass shall be made on the inside of the pipe and at least one submerged-arc welding pass shall be made on the outside of the pipe.ISO 3183 pdf download.