It combines strength and toughness and is particularly suitable for heavily restrained sections where there can be risk of cracking due to weld stresses.
With its excellent general operability and good positional welding characteristics P 51 is often used for pipe welding.
It operates without difficulties on both primer-treated and rusty material.
The electrode produces a finely rippled bead surface and smooth transition with the base material.
This together with the exceptionally good slag detachability, even in root runs, gives P 51 superior radio graphic quality.
Classification
EN 499 E 46 4 B 32 H5
EN ISO 2560-A E 46 4 B 32 H5
AWS A5.1 E 7018-1H8
Coating type: Basic
Welding current:
DC - (+), AC OCV ³ 70 V
For root passes: DC -
Hydrogen content / 100 g weld metal
£ 5 ml
Metal recovery:
120%
Redrying temperature:
350 °C, 2h
Mechanical properties
Specified Typical PWHT Typical
Yield strength, Re: 460 MPa 560 MPa 520 MPa
Tensile Strength, Rm: 530-650 MPa 600 MPa 600 MPa
Elongation, A5 22% 25% 26%
Impact energy, CV: -46 °C · >27 J -46 °C · 30 J
-40 °C · >47 J -40 °C · 60 J -40 °C · 60 J
