Descrizione
Caratteristiche:
LKT-90B3 with 2.5%Cr and 1%Mo, is designed for welding low-alloy steels with high tensile strength and creep-resistance steels such as SA387 Grade 22, A355 Grade P22 or similar materials.
Applicazioni:
It is suitable for welding of pipelines in pressure vessels and boilers with operating temperatures up to about 550°C
Note sull'uso:
1. Use DC(-) current and 100%Argon gas at proper flow rate.
2. In order not to derogate the weld metal quality from particle. Be sure to clean up the contaminations on base metal and welding seam.
Classificazione:
AWS A5.28 ER90S-B3
Composizione chimica tipica del metallo saldato (wt%)
| C | Mn | Si | P | S | Cr | Mo | Cu |
| 0.09 | 0.58 | 0.48 | 0.008 | 0.007 | 2.37 | 0.97 | 0.15 |
Proprietà meccaniche tipiche del metallo saldato
| YP N/mm2 | TS N/mm2 | EL % | PWHT |
| 570 | 650 | 25 | 690°C x1hr |
Sizes available
| Diametro (mm) | 1.6 | 2.0 | 2.4 | 3.2 |
| Length(mm) | 915 | 915 | 915 | 915 |
| Weight per box(kg) | 5 | 5 | 5 | 5 |
