- product.attr_to 530…680
- product.attr_gp ≥ 460
- product.attr_vv ≥ 20
- product.attr_epu ≥ 47
Welding electrodes 7018-1 H4R
product.uv
- Intended for welding in all spatial positions, except from top to bottom, responsible structures and pipelines made of carbon and low-alloy steels with a strength limit of 550 (80) - 610 (88) MPa, especially if it is necessary to ensure high resistance of the joints welded for cold cracks.
product.sv
- a special coating prevents moisture absorption, reduces the likelihood of pores forming and guarantees a low hydrogen content in the weld
- thanks to the uniform composition of the electrode coating, a stable arc is obtained during operation
- excellent weldability, easy separation of slag crust, low metal loss due to spalling
- the electrodes do not absorb moisture from the environment for 10-12 hours after opening the package, so they do not require additional heating before use
- is distinguished by high strength of a metal joint with special metallurgical purity and low hydrogen content in the deposited metal
Basic electrodes are used for welding responsible metal structures, boilers and tanks operating under high pressure, as well as in pipeline construction, shipbuilding, etc. The electrodes are resistant to moisture absorption. These electrodes are characterized by high weld strength, with special metallurgical purity and low hydrogen content.
Packaging data
| Diameter, mm | Length, mm | Number of electrodes in a pack, pcs. | Pack weight, kg |
|---|---|---|---|
| 2,5 | 350 | 88 – 92; 221 – 230 | 2,0; 5,0 |
| 3,0 | 350 | 60 – 64; 152 – 161 | 2,0; 5,0 |
| 3,2 | 350 | 56 – 59; 140 – 147 | 2,0; 5,0 |
| 4,0 | 450 | 71 – 73 | 5,0 |
| 5,0 | 450 | 48 – 50 | 5,0 |
product.coatt
basic with iron powder
product.hsnm
product.hsnm2
product.element_code_c
product.element_c
0,09
product.element_code_mn
product.element_mn
1,3
product.element_code_si
product.element_si
0,5
product.mvmsh
product.hsnm2
product.ppztitle
- permissible moisture content in the coating before use is not more than 0.3%
- in case of electrode coating wetting above normal - dry for 60 minutes at 400±10 °С
product.ppzrez
| Welding current strength, A for electrodes with a diameter of, mm | ||||
|---|---|---|---|---|
| 2.5 | 3.0 | 3.2 | 4.0 | 5.0 |
| 70 – 100 | 90 – 140 | 100 – 150 | 130 – 180 | 170 – 230 |
Welding should be carried out with direct current of reverse polarity, “+” on an electrode with an arc voltage of 23 - 27 V or alternating current from a transformer with an idle voltage of 70 V
product.pshv
pa
pb
pc
pf
pe
pd
Download Certificates
