UN-216Fe is a low hydrogen potassium coated type electrode of superior quality for carbon steel .The finish weld has good mechanical properties and crack resistance ,the bead surface looks neat and fine .With little spatter ,easy to remove the slag ,the electrode gives good welding technological performance .It can be used on both AC and DC .When used AC,the open circuit voltage must be more than 60V.

Before welding ,it is necessary to clean the weldpiece and remove impurities such as oil and grease rust and moisture ,and bake the electrodes at about 350℃ for one hour .

 

Welding of key structures of ship hulls, bridges, pressure containers of carbon steel ,middle carbon steel and low alloy steel, as well as other corresponding grade steels.

Diameter(mm)		2.5	3.2	4.0	5.0
Length(mm)		300	350	400	400
Recommended	Flat welding	60-100	90-130	150-190	180-230
Current(A)	Vefical welding	55-80	80-110	130-170

C	Mn	Si	S	P
0.081	1.20	0.42	0.012	0.019

Yield point Mpa (Kgf)	Tensile Strength Mpa (Kgf)	Elongation   %	Charpy V		Bendtest   Face,Root
			-20°	-30°
450(46)	540(55)	29	185	155	120°