Volume-II of IV - GAIL

MECON LIMITED
REGD. OFF: RANCHI (BIHAR)
PROCESS & PIPING
DESIGN SECTION
NEW DELHI
TITLE PIPING FABRICATION AND
ERECTION
STANDARD SPECIFICATION
SPECIFICATION NO. PAGE 11 OF 62
MEC/S/05/62/06 REVISION 0
In addition, the following codes/ specifications referred to in the relevant code of
fabrication shall be followed for the welding/ brazing qualifications, consumable
qualifications and non destructive test procedures.
i) Standard for welding of pipelines and related facilities API-1104.
ii) Material Specifications - Welding rods, electrodes and filler
materials - ASME Sec. - IIC.
iii) Code for non destructive examination ASME Sec-V.
iv) Qualification standard for welding and brazing procedure and
welders, brazers, welding and brazing operators - ASME Sec-I
In the event of any difference due to the additional requirements mentioned in
this specification, over and above those obligation as per codes, this
specification shall be binding.
1.2 Base Material
a) In general carbon steel is used in this plant. The details of material
specifications are given in the welding Specification Chart.
b) The contractor shall provide the Manufacturer's test certificates for every
heat of the materials supplied by him.
1.3 Filler Materials
a) The Contractor shall provide all the necessary welding electrodes, filler
materials, etc. required for the execution of the work.
b) The welding electrodes/ filler wires supplied by the Contractor shall
conform to the class specified in the welding specification chart. The
materials shall be of the make approved by the Engineer-in-charge.