The electrodes ОЗЛ - 9A
WELDING ELECTRODES OZL-9A (diameter 3; 4; 5 mm)
CLASSIFICATION: E-28H24N16G6 according to GOST 10052-75
LEGEND:E-28H24N16G6-OZL-9A - Ø - WA
E-097-B20
TECHNICAL REQUIREMENTS:GOST 9466-75, TU BY 100034500.034-2011
COATING:main
PURPOSE:
For the welding of heat-resistant steels 12H25N16G7AR, 45H25N20S2, H18N35S2 and the like operating in oxidizing environments at temperatures up to 1050 ° C and in carburizing environments at temperatures up to 1000 ° C. They can be used for welding 20H23N13 steels 20H23N18. In all spatial positions except the vertical "top-down", at a constant current of opposite 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) |
12.0 - 14.0 g / Ah |
|
deposition rate (electrode diameter 4.0 mm) |
1,5-1,7 kg / h |
|
Electrode consumption per 1 kg of weld metal |
1.8 kg |
Typical mechanical properties of weld metal (at 20 ° C):
|
Tensile strength, MPa |
Relative extension, % |
Impact toughness J / cm2 |
Type of heat treatment (t / a) |
|
600 |
25 |
100 |
Without t / o |
Chemical composition of deposited metal:
|
Element content, weight% |
||||||
|
Carbon |
Silicon |
Chromium |
Nickel |
Manganese |
Sulfur |
Phosphorus |
|
0,22-0,35 |
<= 0.7 |
22,5-26,0 |
14,5-17,0 |
5.0-7.5 |
<= 0.02 |
<= 0.03 |
DIRECTIONS FOR USE:
In case of exceeding the permissible moisture content in the coating (0.7%) before use further electrodes are calcined at a temperature of 280-300 ° C for 40-60 minutes.
WELDING MODES:
|
Electrode diameter mm |
Welding current, A |
||
|
joint position |
|||
|
Underwear |
vertical |
ceiling |
|
|
3 |
90-120 |
60-100 |
60-90 |
|
4 |
130-150 |
110-140 |
110-130 |
|
5 |
140-180 |
120-160 |
- |
Welding is done in short arc.
|
= / + / |