electrode LB-52U d.2.5 mm

FAMILIARC™ LB-52U is the world's No. 1 covered electrode for uranami welding, or the root -pass  melt-through welding with penetration beads. With FAMILIARC™ LB-52U your welding will be easier and faster, and you will have confidence in the quality of your welds in any kind of pipe welding of mild steel and 490MPA high tensile steel.

Inception of FAMILIARC™ LB-52U
FAMILIARC™ LB-52U was developed around 1954. The letter "L" stands for low hydrogen, while "B"  symbolizes a slag shielding covered electrode. The digits "52" refer to the level of approximate tensile strength of the deposited metal when it was developed. The letter "U" was coined from "uranami" welding.

What Makes FAMILIARC™ LB-52U the Best for "Uranami"(*) Welding?
(*) Unsurpassed usability in all-position welding.

FAMILIARC™ LB-52U features a very stable arc and low spatter over a wide range of welding currents. In particular, FAMILIARC™ LB-52U really shines in the "uranami" welding of horizontally fixed pipes.  FAMILIARC™ LB-52U features very smooth, glossy "uranami" beads, or the penetration beads protruded on the reverse side of the groove. FAMILIARC™ LB-52U can accommodate wider tolerance of the root opening, which is an advantage in site welding . Once you have used FAMILIARC™ LB-52U, you will choose it again and again for unsurpassed performance.

Chemical  properties of FAMILIARC™ LB-52U 

C	Si	Mn	P	S
0,08	0,64	0,86	0,012	0,008

Mechanical properties of FAMILIARC™ LB-52U 

0,2% YS (MPa)	TS (MPa)	EL (%)	vE-29C(J)	H2 (ml/100g)
480	560	31	80	3,5