Descrição
Caraterísticas:
LKT-56 is designed for welding of mild steel and 490N/mm² grade steel. Commonly used is butt or fillet welding. As an all-position welding rod for TIG welding, it is especially suitable for the root pass of pipe welding.
Aplicações:
It is suitable for welding of high pressure piping for shipbuilding, petro chemistry and nuclear power plant, etc.
Notas sobre a utilização:
1.100% Argon shielding gas with 99.997% high purity is recommended and the flow rate must be properly controlled. The flow rate is recommended 7-12l/min when arc current is 100-200Amp and it goes up to 12-15l/min when arc current rises to 200-300Amp.
2.Select right gas cup size and employ proper stick out of tungsten electrode.
3.To obtain a very clean weld pool, keep the weld plate free from dirt, rust, paint and any other atmospheric contamination.
4.Trailer Shield is required to ensure the weld pool completely s hielded until solidification is complete and no porosity problem.
Classificação:
AWS A5.14 ERNiCr-3
JIS Z3334 YNiCr-3
Composição química típica do metal de solda (wt%)
| C | Mn | Si | P | S | Ni | Cr | Mo | V | Cu |
| 0.08 | 1.53 | 0.80 | 0.015 | 0.011 | 0.008 | 0.022 | 0.021 | 0.006 | 0.044 |
Propriedades mecânicas típicas do metal de solda
| YP N/mm2 | TS N/mm2 | EL % | IV -30°C J |
| 460 | 550 | 35 | 196 |
Sizes available
| Diâmetro (mm) | 1.6 | 2.0 | 2.4 |
| Comprimento (mm) | 915 | 915 | 915 |
| Peso por caixa (kg) | 5 | 5 | 5 |
