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EN 499
E 42 6 B 42 H 5
DIN 8529
E SY 42 76 Mn B
AWS/ASME SFA-5.1
E 7018-1-H4
Application / Properties:
Electrode for producing
crack- free and tough
welding joints, also suited
for welding steels having a
carbon content of up to
0.6%. The weld metal
has very low hydrogen
content and is resistant to
ageing. Approved for rail
joint welding. Good gap
bridging properties. Owing
to its double covering (up
to 3.25mm) the electrode has
a stable and concentrated
arc is therefore well suited
for positional welding.
Welds are if X-ray quality.
CTOD-tested for offshore
application.
Weld metal analysis in %
(typical values):
|
C |
Mn |
Si |
S |
P |
|
|
0.06 |
1.50 |
0.30 |
0.02> |
0.02> |
|
Mechanical Properties of
all-weld metal :
(single values are typical
values)
|
Yield Strength
(N/mm2) |
Tensile Strength
(N/mm2) |
Elongation
A5(%) |
ISO-V Impact
energy (j)
+200C
-300C |
|
|
AW
>420
SR
>420 |
500-640
500-640 |
>22
>22 |
180
70
160
60 |
|
AW= as - welding
SR= atress - relieved
15hrs./580C
|
Amperage: |
|
|
2.5Ǿ |
3.25 Ǿ |
4.0Ǿ |
5.0Ǿ |
6.0Ǿ |
|
|
65-95 |
90-140 |
140-185 |
180-240 |
250-330 |
|
Materials:
|
Unalloyed Structural
steels |
St
33
to St
52-3,
St 50-2,
St 60-2, St 70-2
|
|
Boiler plates |
H l,H ll,
17 Mn 4, 19 Mn 5
|
|
Pipe steels |
TO St 52.4
St 35.8 to 17 Mn
4,
StE 210.7 to StE
415.7
Inclouding
corresponding-TM-grades |
|
Fine grain
structural steels |
EStE 255 to EStE
420, StE 255 to StE
420
WStE 255 to WStE 420 |
|
Crygenic steels |
TT St 35 N u.V
|
|
Shipbuilding steels |
A,B,D,E |
|
cast steels |
GS-38,GS-52
|
|
|
Redrying : required
at 300°C to 350°C for 2hrs.
Approval :
LR,GL, BV,
DNV
|
