The electrodes ОЗЛ - 8
WELDING ELECTRODES RLA-8 (diameter 3; 4; 5 mm)
CLASSIFICATION: E-07H20N9 according to GOST 10052-75
LEGEND:E - 07H20N9 - RLA-8- Ø - WA
E - 2004 - B20
TECHNICAL REQUIREMENTS: GOST 9466-75, GOST 10052-75 and TU BY 100034500.014-2006
COATING: main
PURPOSE:
Intended for welding of corrosion-resistant CrNi steels 08H18N10, 12H18N9, 08Cr18Ni10Ti and the like, when the weld metal does not impose strict requirements of resistance to intergranular corrosion. In all spatial positions except the vertical downward direct current reverse polarity.
CHARACTERISTICS Electrodes:
|
arcing |
sustainable |
|
splashing degree |
small |
|
formation of the joint |
a good |
|
Separation of the slag crust |
satisfactory |
|
deposition rate (in the lower position of the weld) |
10.0 - 13.0 g / Ah |
|
deposition rate (electrode diameter 4.0 mm) |
1,1-1,7 kg / h |
|
Electrode consumption per 1 kg of weld metal |
1.6 kg |
|
The tendency of the weld metal to pore formation |
Inclined with poor preparation of the joint and the extension of the arc |
Typical mechanical properties of weld metal (at 20 ° C):
|
Tensile strength, MPa |
Relative extension, % |
Impact toughness J / cm2 |
Ferrite phase,% |
|
550 |
thirty |
100 |
5.0 |
Chemical composition of deposited metal:
|
Element content, weight% |
||||||
|
Carbon |
Silicon |
Chromium |
Nickel |
Manganese |
Sulfur |
Phosphorus |
|
No more |
No more |
|||||
|
0.09 |
0.3-1.2 |
18,0-21,5 |
7.5 - 10.0 |
1.0 - 2.0 |
0,020 |
0,030 |
DIRECTIONS FOR USE:
In case of exceeding the permissible moisture content in the coating (0.3%) before use further electrodes are calcined at a temperature of 300-330 ° C for 40-60 minutes.
WELDING MODES:
|
Electrode diameter mm |
Welding current, A |
||
|
joint position |
|||
|
Underwear |
vertical |
ceiling |
|
|
3 |
90-110 |
80-100 |
80-100 |
|
4 |
120-150 |
100-120 |
100-120 |
|
5 |
180-210 |
160-190 |
- |
|
= / + / |