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© MOSA
1.0-10/03
The information here below are to be intended only as indicative since the above norm is much larger.
For further details please see the specific norms and/or the manufacturers of the product to be used in the welding
process.
RUTILE ELECTRODES: E 6013
Easily removable fluid slag, suitable foe welding in all position.
Rutile electrodes weld in d.c. with both polarities (electrode holder at + or -) and in a.c..
Suitable for soft steels R-38/45 kg/mm
BASIC ELECTRODES: E 7015
Basic electrrodes wels onlu in d.c. with inverse polarity (+ on the electrode holder) ; there are also types for a.c.
Suitable for impure carbon steels. Weld in all position.
HIGH YIELD BASIC ELECTRODES: E 7018
The iron contained in the coating increases the quality of metal added. Good mechanical properties. Weld in all position.
Electrode holder at + (inverse polarity). Wld deposit of nice aspect, also vertical. Workable; high yield.
Suitable for steels with high contens of sulphur (impurities).
CELLULOSIC ELECTRODES: E 6010
Cellulosic electrodes weld only in d.c. with polarity + electrode holder - ground clamp.
Special for steels run on pipes with R max 55 kg/mm
ELECTRODES IDENTIFICATION ACCORDING TO A.W.S. STANDARDS
E X X Y Z
2÷3 digits: tesile strenght of
the weld deposit.
(see table 1)
symbol for
"Coated
electrode"
Number
60
70
80
90
100
110
120
Table 1
for all positions
1
for plane and verticl
2
for plane posotion only
3
Table 2
RECOMMENDED ELECTRODES
2
. Also for soft steels of lower quality.
2 digits: type of coating
and
electric
power
conditions.
(see table 3)
1 digits: welding
positions.
(see table 2)
Strenght
K.s.l.
Kg/mm
60.000
42
70.000
49
80.000
56
90.000
63
100.000
70
110.000
77
120.000
84
(In accordance with A.W.S Standard)
2
. Weld in all position. volatile slag.
N°
10 Cellulose electrodes for d.c.
11 Cellulose electrodes for a.c.
12 Rutile electrode for d.c.
13 Rutile electrode for a.c.
14 High yield rutile electrodes
15 Basic electrodes for d.c.
16 Basic electrodes for c.a.
18 High yield basic electrodes for d.c.
2
(inverse polarity)
20 Acid electrodes for flat or front position welding for
d.c. (- pole) and for a.c.
24 High yield rutile electrodes for flat or front plane
position welding for d.c. and a.c.
27 High yield acid electrodes for flat or front plane
position welding for d.c. (- pole) and a.c..
28 High yield basic electrodes for flat or front plane
position welding for d.c. (inverse polarity)
30 Extra high yield acid electrodes, extra high
penetration if required, for flat position welding only
for d.c. (- pole) and a.c.
Table 3
MS_, TS_
Descrizione
M
55
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