STANDARDS:
AWS A5. 1: E 7018- 1
EN 499: E 42 6B 42
TENACITO 7018- 1 T
APPLICATIONS/ PROPERTIES:
Low hydrogen, basic covered electrode for
welding medium tensile strength structural and
fine grained steels. It has excellent positional
weldability and stable arc characteristics.
MATERIALS:
BRITISH STEELS
Structural steels: BS EN 10025: 1993 All
grades up to S335K2G4
BS EN 10113- 2: 1993 Grades S275N & S355N
BS EN 10210- 1: 1994, All grades to S355J2H
EEMU Pub. No. 150 Grades 275D, 275E, 275EZ,
355D, 355E, 355EM, 355EMZ
Pressure vessel plates: BS EN 10028- 2:
1993 All grades to P355GH and 161- 360, 161-
400, 161- 430
BS EN 10028- 3: 1993 Grades P275N, P355N,
P275NH, P355NH
Forgings: BS1503: 1989 All grades up to
224
Pipe: BS 3603: 1991 Grade 430LT
AMERICAN STEELS
Pipe: ASTM A106 Grades A, B, C
GERMAN STEELS
Non- alloyed St 33 to St 52- 3,
structural steels: St 50- 2, St 60- 2, St70- 2
Boiler plate: H I, H II, 17 Mn 4, 19 Mn 5
Tube steels: To St 52. 4
St 35. 8 to 17 Mn 4
StE210. 7 to StE 415. 7
Including the corresponding
TM grades.
Fine grained StE 255 to StE 420
steels: WStE 255 to WStE420
EStE 255 to EStE 420
Cryogenic steels: TT St35 Nu. V
Shipbuilding steels: A, B, D, E
Cast steels GS- 38 to GS- 52
STANDARDS:
AWS A5. 1: E 7018- 1
EN 499: E 42 6B 42
ELECTRODE MARKING:
Tenacito 7018- 1
WELD METAL ANALYSIS IN % (TYPICAL)
C Mn Si S P
0. 07 1. 20 0. 40 <0. 02 <0. 02
MECHANICAL PROPERTIES OF ALL WELD
METAL
As- welded
Yield
strength
(MPa)
Tensile
Strength
(MPa)
Elong.
(5xd) (% )
Impact
Strength (J)
ISO- V
> 440 520- 620 >25
+20 ?C > 160
0 ?C > 150
- 20 ?C > 130
- 40 ?C > 100
- 60 ?C > 50
Stress relieved (580oC/ 15h)
Yield
strength
(MPa)
Tensile
Strength
(MPa)
Elong.
(5xd)
(% )
> 420 500- 600 >25
REDRYING:
Use dry electrodes only.
Re- drying should be carried out at 300- 350?C/ 2h
AMPERAGE:
2. 5 mm
?
3. 15 mm
?
4. 0 mm
?
5. 0 mm
?
65- 95 90- 140 140- 185 185- 240
PACKING (TYPICAL) :
? ( mm ) 2. 5 3. 15 4. 0 5. 0
Length mm ) 350 350 450 450
Mass per
Carton (kg) 5 5 5 5
Pieces per
carton
256 155 75 47
= +
