Hello Syahar1975,
This is what API 650 say about it .
9-2 API STANDARD 650
9.2.2.5 Impact tests shall show minimum values for acceptance in accordance with 4.2.8.3 and the following:
a. For PI, Group 1, materials-20 J (15 ft-Ibt), average of three specimens.
b...
Chemical analysis shall be performed on the weld metal in accordance with the requirements of ASME,
BPVC:2004, Section IX, at a location 3 mm (0,125 in) or less from the original base-metal surface. The
chemical composition of the deposited weld metal at that location shall be as specified by...
API 6A
6.5.1.2.1 General
This subclause applies to use of corrosion-resistant weld overlay for bodies, bonnets, hub end connectors, and end
and outlet connectors for purposes other than ring grooves. These requirements do not apply to hard facing or to
the weld overlay of valve-bore sealing...
f) A change in position from that for which the welder has already qualified (e.g. a change from rolled to fixed or a
change from vertical to horizontal or vice versa). A welder who qualifies in the fixed position shall also be qualified
to perform rolled welds within the essential variables...
Weldstand,
no I 'm not going to weld wit electrode E8018 - B1 - H4.
because the question is where are you going weld with
I choose for E9018 - B3.
but you can also use E8018 -B3 and other electrode.