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OP 155
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EIN 760
SA MS 1 89AC
DIN 32 522
B MS 1 89 AC 8 SKM
Type /Characteristics:
Agglomerated
Manganese-Silicate type
flux for high-speed
welding. It is
preferably used for
welding thin plates at
speeds higher than 2.5
meter/min. Welding
properties arc
outstanding on either AC
or DC up to 800A. AMA OP
155 is removal. It is
likewise suited for
tandem and multi-wire
welding.
AMA OP 155 produce high
Manganese pick-up which
decreases with
increasing Manganese
content of the wire
electrode.
Damp flux shall be
retried by baking at
300-350C
Grain size in according
with DIN 32 522:2-20.
Main constituents:
|
SiO2+TiO2 |
CaO+MgO |
Al203 + MnO |
|
|
%45 |
%10 |
%40 |
|
Basicity to boniszewsk:
~0.8
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 |
0.03-0.07 |
0.4-0.8 |
1.4-1.8 |
- |
- |
|
50-12 |
0.03-0.07 |
0.4-0.8 |
1.8-2.3 |
- |
- |
|
50-14 |
0.03-0.07 |
0.4-0.8 |
1.8-2.3 |
0.5 |
- |
|
50-22 |
0.03-0.07 |
0.4-0.8 |
1.8-2.3 |
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 ±00C
-200C |
|
|
50-11 |
As - Welded |
>400 |
500-600 |
>22 |
>90
>60
>35 |
|
Mechanical properties
of Welded joints (typical
values) :
|
With Wire electrode |
Heat treatment |
Yield Strength
(N/mm2) |
Tensile Strength
(N/mm2) |
ISO-V Impact
energy (j)
+200C -+00C |
|
|
50-12** |
As - Welded |
>360 |
>510 |
>50
>60 |
|
|
50-14** |
As - Welded |
>360 |
>510 |
>50
>30 |
|
|
50-22*** |
As - Welded |
>300 |
>440 |
>40
- |
|
|
50-14** |
Stress relived |
>360 |
>510 |
>50
>30 |
|
|
50-22*** |
Stress relived |
>300 |
>440 |
>50
-
|
|
Stress relived at
15hrs/700C
* Transverse flat
tensile specimen
** StE 36 12 mm, welded
from boyj sides in one
pass
*** 13 Cr Mo 44, 15 mm,
mm, Welded from both
sides in one pass
Application:
|
Materials |
Multi-pass joint
welding |
Welding from both
sides in one pass |
|
|
General structural steels |
With wire electrode |
With wire electrode |
|
St3.7-2,Ust37-2,RSt37.2 |
50-11 |
50-11,50-12 |
|
St 44-2,St 44-3,St 52-3 |
50-11 |
50-11,50-12 |
|
Pipe steels |
With wire electrode |
With wire electrode |
|
StE 210.7, StE 240.7, StE
290.7 |
50-11 |
50-11,50-12 |
|
StE 320.7, StE 360.7, |
50-12 |
50-11,50-12 |
|
St 35.0, St 37.4, St 35.8 |
50-11 |
50-11,50-12 |
|
St 44 , St 44.4, St 45.8 |
50-11 |
50-11,50-12 |
|
St 52, St 52.4 |
50-11 |
50-11,50-12 |
|
Boiler plates |
With wire electrode |
With wire electrode |
|
H I, H II |
50-11 |
50-11,50-12 |
|
17 Mn 4, 19 Mn 5 |
50-11 |
50-11,50-12 |
|
15 Mo 3 |
- |
50-14 |
|
13 Cr Mo 44 |
- |
50-22 |
|
