OP 185
Download this
page
As
[PDF]
EN 760
S AAR 1 88 AC
DIN 32 522
BAR 1 88 AC 10 SKM
Application / Properties:
Agglomerated aluminate-rutile
type flux for welding
general structural
steels, pressure vessel
and pipe steels, as wel
as fine grain structural
steels having a yield
strength of up to
355N/mm2. AMA OP185
produces a high, silicon
and manganese pick-up
and can therefore be
used with 50-11, 50-12
wire electrodes.
It is particularly
suited for high-speed
welding applying the
twin-wire process, as
well as for tandem and
multi-wire welding
welding Owing to its
metallurgical behavior,
AMA OP 185 can be
advantageously used for
welding from both sides
in one pass. It is
outstanding for welding
tube-web-tube joints or
finned tubes. On account
of easy slag removal,
AMA OP 185 is preferably
used in fillet welding.
The weld metal produced
with this flux is not
susceptible to porosity
when welding on surfaces
contaminated by rust,
scale etc. The flux has
a low bulk density with
correspondingly low
consumption.
AMA OP 185 can be
used on either DC or AC
up to 1000A.
Damp flux shall be
redried by baking at
300-350C
Grain size in according
with DIN 32 522:2-20.
Main constituents:
|
SiO2+TiO2 |
Al203 + MnO |
CaF2 |
|
|
%30 |
%55 |
%5 |
|
Basicity to boniszewsk:
~0.5
Metallurgical behavior:
Pick-up and burn-off
the alloying elements Si
and Mn as a function of
the alloy content
of the wire electrode,
DVS Merkblatt 0907, part
1
All-Weld metal
analysis (typical
values):
|
With
Wire electrode
Weight-% |
|
|
|
C |
Si |
Mn |
Mo |
Cr |
|
|
50-11 |
0.04-0.08 |
0.5-0.8 |
1.2-1.6 |
- |
- |
|
50-12 |
0.04-0.08 |
0.5-0.8 |
1.4-1.8 |
- |
- |
|
50-14 |
0.04-0.08 |
0.5-0.8 |
1.4-1.8 |
0.5 |
- |
|
50-22 |
0.05-0.10 |
0.5-0.8 |
1.4-1.8 |
0.5 |
1 |
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 |
|
|
50-11 |
As - Welded |
>400 |
500-600 |
>24 |
>50 |
|
|
50-12 |
As - Welded |
>420 |
530-630 |
>22 |
>50 |
|
|
50-14 |
As - Welded |
>440 |
580-680 |
>20 |
>50 |
|
Mechanical properties
of Welded joints (typical
values) :
13 Cr Mo 44, 10 mm
Welded From both sides
in one pass.
|
With Wire electrode |
Heat treatment |
*Yield Strength
(N/mm2) |
*Tensile Strength
(N/mm2) |
ISO-V Impact
energy (j)
+200C |
|
|
50-22 |
As - Welded |
>300 |
>440 |
>70 |
|
|
50-22 |
Stress relived |
>300 |
>440 |
>80 |
|
Stress relived 15 hrs /
700C
* Transverse flat
tensile specimen
Application:
|
Materials |
Multipass joint
welding |
Welding from both
sides in one pass |
|
|
General structural steels |
With wire electrode |
With wire electrode |
|
StE37-2,Ust37-2,RSt37-2 |
50-11,50-12 |
50-12 |
|
St 44-2,St 44-3 |
50-11,50-12 |
50-12 |
|
St
52-3** |
50-12 |
50-12 |
|
Pipe steels |
With wire electrode |
With wire electrode |
|
StE 210.7, StE 240.7, StE
290.7 |
50-11 |
50-12 |
|
StE 320.7, StE 360.7 |
50-12 |
50-12 |
|
St 37, St 37.4, St 35.8 |
50-11 |
50-12 |
|
St 44 , St 44.4, St 45.8 |
50-11 |
50-12 |
|
St 52, St 52.4 |
50-12 |
|
|
Boiler plates |
With wire electrode |
With wire electrode |
|
H I, H II |
50-11,50-12 |
50-11,50-12 |
|
17 Mn 4, 19 Mn 5 |
50-12 |
50-11,50-12 |
|
15 Mo3 |
50-14 |
50-14 |
|
13 Cr Mo44* |
- |
50-22 |
|
Fine grain structural steels |
With wire electrode |
With wire electrode |
|
StE 255, WStE 355** |
50-11,50-12 |
50-12 |
* Only for fillet welds
or tube-web-tube welding
on finned tubes.
** At service
temperatures down to +
0°C
