설명
특성:
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.
애플리케이션:
It is suitable for welding of pipelines in pressure vessels and boilers with operating temperatures up to about 550°C
사용 시 참고 사항:
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.
분류:
AWS A5.28 ER90S-B3
용접 금속의 일반적인 화학 성분(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 |
용접 금속의 일반적인 기계적 특성
| YP N/mm2 | TS N/mm2 | EL % | PWHT |
| 570 | 650 | 25 | 690°C x1hr |
Sizes available
| 지름(mm) | 1.6 | 2.0 | 2.4 | 3.2 |
| Length(mm) | 915 | 915 | 915 | 915 |
| Weight per box(kg) | 5 | 5 | 5 | 5 |
