Deskripsi
Karakteristik:
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.
Aplikasi:
It is suitable for welding of pipelines in pressure vessels and boilers with operating temperatures up to about 550°C
Catatan tentang Penggunaan:
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.
Klasifikasi:
AWS A5.28 ER90S-B3
Komposisi kimiawi khas logam las (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 |
Sifat mekanis khas dari logam las
| YP N / mm2 | TS N/mm2 | EL % | PWHT |
| 570 | 650 | 25 | 690°C x1hr |
Sizes available
| Diameter (mm) | 1.6 | 2.0 | 2.4 | 3.2 |
| Length(mm) | 915 | 915 | 915 | 915 |
| Weight per box(kg) | 5 | 5 | 5 | 5 |
