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OP 176
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DIN EN 760
SA MS 1 89AC
DIN 32 522
B MS 1 88 AC SK MHP5
Type /Characteristics:
Agglomerated
Manganese-Silicate type
flux for high-speed
welding of butt and
fillet welds. The high
silicon and manganese
transfer from the flux
to weld metal alloys to
use the AMA OP 176 flux
with low or medium
manganese wire electrode
like 11-50 , 12-50, 14-50.
Owing to its good
weldability AMA OP 176
can be used in welding
from both sides in one
pass, e.g. in
longitudinal welding of
large diameter pipes and
in thin walled spiral
pipes. AMA OP 176 can be
used on either DC
(positive) or AC
current.
Damp flux shall be
redried by baking at
300-350C
Grain size in according
with DIN 32 522:3-20.
Main constituents:
|
SiO2+TiO2 |
CaO+MgO |
Al203 + MnO |
CaF2 |
|
|
%40 |
%25 |
%20 |
%10 |
|
Basicity as to
boniszewsk: ~0.8
All-Weld metal
analysis (typical
values):
|
With
Wire electrode
Weight-% |
|
|
|
C |
Si |
Mn |
Mo |
|
|
50-11 |
0.03 |
0.6 |
1.2 |
- |
|
50-12 |
0.06 |
0.7 |
1.5 |
- |
Mechanical properties
of all-weld metal (typical
values) :
|
With Wire electrode |
Heat treatment |
Yield Strength
(N/mm2) |
Tensile Strength
(N/mm2) |
Elongation
Lo=5d(%) |
ISO-V Impact
energy (j)
+200C
±00C -200C
-300C |
|
|
50-12 |
As - Welded |
410 |
530 |
28 |
125
100
58
48 |
|
|
