OZL - 25B
WELDING ELECTRODES OZL-25B (diameter 3; 4 mm)
LEGEND:E10H20N70G2M2B2V OZNL-25B - Ø - WA
E-087-B20
TECHNICAL REQUIREMENTS:GOST 9466-75, GOST 10052-75, TU BY 100034500.032-2011
COATING:main
PURPOSE:
Welding of corrosion-resistant and heat-resistant superalloy XH78T brand alloy; cold-resistant and can weld dissimilar steels and cast iron. In all spatial positions seam 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) |
14.0 g / Ah |
|
deposition rate (electrode diameter 4.0 mm) |
1.5 kg / h |
|
Electrode consumption per 1 kg of weld metal |
1.4 kg |
Typical mechanical properties of weld metal (at 20 ° C):
|
Tensile strength, MPa |
Relative extension, % |
Impact toughness J / cm2 |
|
640 |
thirty |
100 |
Chemical composition of deposited metal:
|
Element content, weight% |
|||||||||
|
Carbon |
Silicon |
Chromium |
Nickel |
Manganese |
Molybdenum |
Tungsten |
Niobium |
Sulfur |
Phosphorus |
|
<= 0.12 |
<= 0.8 |
18-22 |
25-29 |
1,50-2,50 |
1,30-2,50 |
0,10-0,30 |
1,50-2,80 |
<= 0.013 |
<= 0.020 |
DIRECTIONS FOR USE:
Provide a weld metal with high mechanical and special properties: heat resistance to a temperature of 1000 ° C, rupture strength of 75 MPa at 850 ° C for 100 hours, the corrosion resistance - corrosion rate is not more than 0.02 mm / year (30% H2SO4 + 10 % HNO3 at 80 ° C for 96 hours).
WELDING MODES:
|
Electrode diameter mm |
Welding current, A |
||
|
joint position |
|||
|
Underwear |
vertical |
ceiling |
|
|
3 |
80-100 |
70-90 |
70-90 |
|
4 |
120-140 |
80-120 |
80-120 |
|
= / + / |