Electrode for welding of creep resistant and high-pressure hydrogen resistant steels used in the construction of pressure vessels, boilers and piping subjected to operating temperatures up to+600°C. Welds are of X-ray quality. Preheating, inter-pass temperature and post-weld heat treatment in accordance with base metal to be welded.
Weld metal analysis in % (typical values):
C
Mn
Si
Cr
Mo
0.06
0.80
0.50
2.40
1
Mechanical Properties of all-weld metal:
(single values are typical values)
Tensile Strength ( N/mm 2 )
Yield Strength ( N/mm 2 )
Elongation A5 %)
Impact energy (J) ISO - V 20°C+
Heat treatment
570 - 670
> 440
>22
100
T
500 - 600
> 350
>24
140
N+T
T: Tempered 0.5 h at 700C, air cooling N+T: Normalized + Tempered 0.5 h at 920C, air cooling + 0.5 h at 750C
