Electrodes НЖ - 13
WELDING ELECTRODES NZH - 13 (diameter 3; 4; 5 mm)
CLASSIFICATION: E - 09H19N10G2M2B GOST 10052-75,
LEGEND: E - 09H19N10G2M2B - NZH-13 - Ø - WA
E2005-B20
TECHNICAL REQUIREMENTS:GOST 9466-75, TU BY 100034500.015-2006
COATING: main
PURPOSE:
Welding of critical structures of the corrosion-resistant steels hromonikelemolibdenovyh 10X17H13M2T, 10H17N13M3T, 08H21N6M2T and the like operating at temperatures up to 350C when the weld metal to the strict requirements for 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 |
Yield strength, |
Relative extension, % |
Impact toughness J / cm2 |
|
590 |
470 |
22 |
70 |
Chemical composition of deposited metal:
|
|
|
Element content, weight% |
||||||
|
Carbon |
Silicon |
Chromium |
Nickel |
Manganese |
Molybdenum |
Niobium |
Sulfur |
Phosphorus |
|
<= 0.12 |
<= 1.2 |
17,0-20,0 |
8,5-12,0 |
1.0-2.5 |
1.8-3.0 |
0.7-1.3 |
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 |
80-110 |
60-100 |
60-90 |
|
4 |
130-150 |
110-140 |
110-130 |
|
5 |
140-180 |
120-160 |
- |
Welding is done in short arc.
|
= / + / |