GOST 23949-80. Welded tungsten welding electrodes. Technical conditions.
You are interested in GOST 23949−80 «Welding electrodes of tungsten non-melting» from the supplier company AvecGlob? Here you will find interesting information on this topic.
General provisions and nomenclature
This standard applies to electrodes of pure tungsten and tungsten with activating additives (thorium dioxide, lanthanum and yttrium oxides) intended for arc welding with a non-consumable electrode in inert gases (argon, helium), as well as for plasma cutting, surfacing and sputtering processes.
Depending on the chemical composition, the electrodes must be made of tungsten grades indicated in the table
| Make | Material |
| EEC | Tungsten pure |
| EVL | Tungsten with lanthanum oxide additive |
| EVI-1 | Tungsten with an additive of yttrium oxide |
| EVI-2 | Tungsten with an additive of yttrium oxide |
| EVI-3 | Tungsten with an additive of yttrium oxide |
| EVT-15 | Tungsten with additive of thorium dioxide |
Dimensions of electrodes and limit deviations should correspond to those indicated in the table
| Make | Nominal diameter, mm | Limiting deviation, mm | Length, mm |
| EEC | 0.5 | ± 0.2 | At least 3000 in coils |
| 1.0; 1.6; 2.0; 2.5 | ± 0.1 | 75 ± 1; 150 ± 1; | |
| 3.0; 4.0; 5.0; 6.0; 8.0; 10.0 | ± 0.2 | 200 ± 2; 300 ± 2 | |
| EVL | 1.0; 1.6; 2.0; 2.5; 3.0; 4.0; | ± 0.1 | 75 ± 1; 150 ± 1; |
| 5.0; 6.0; 8.0; 10.0 | ± 0.2 | 200 ± 2; 300 ± 2 | |
| EVI-1 | 2.0; 3.0; 4.0; 5.0; 6.0 | ± 0.1 | 75 ± 1; 150 ± 1 |
| 8.0; 10.0 | ± 0.2 | 200 ± 2; 300 ± 2 | |
| EVI-2 | 2.0; 3.0; 4.0; 5.0; 6.0; 8.0; 10.0 | ± 0.15 | 75 ± 1; 150 ± 1; 200 ± 2; 300 ± 2 |
| EVI-3 | |||
| EVT-15 | 2.0; 3.0; 4.0; 5.0 6.0; 8.0; 10.0 |
± 0.15 | 75 ± 1; 150 ± 1; 200 ± 2; 300 ± 2 |
Supplier — AvekGlob company — offers at affordable prices from the manufacturer tungsten electrodes of domestic production, which meet the requirements of GOST 23949−80. The supplier guarantees the timely delivery of products to any address specified by the consumer.