Product Details
Meets standards： |
GB/T 5293-2018： S 55P 6U FB-SUN21 Ni1 H5 |
AWS A 5.23: F8A6-ENi1K-Ni1 |
EN ISO 14171-B： S55P6FB SUN21H5 |
GB/T 36037 S A FB 1 55 AC H5 |
Main Chemical Composition of Flux（%）
SiO2 +TiO2 | MnO+Al2O3 | CaO+MgO | CaF2 |
15 | 21 | 52 | 26 |
Mechanical Properties of Deposited Metal
Welding Wire |
PWHT | Yield Strength（MPa） | Tensile Strength（MPa） | Elongation （%） | Charpy V‑notch Impact Absorbed Energy (J) | |
-60℃ | -100℃ | |||||
YL-ENi1k | 650℃/4h | 524 | 600 | 28 | 130 | 60 |
Chemical Composition of Deposited Metal（%）
Welding Wire | C | Mn | Si | Ni | S | P |
YL-ENi1k | 0.08 | 1.02 | 0.6 | 0.96 | 0.004 | 0.011 |
Precautions:
1. The flux shall be dried at 300–350 °C for 2 hours before use.
2.Prior to welding, impurities such as rust, primer, oil, grease, carbon-arc gouging scale, and welding slag shall be removed from the base metal surface.
3.The flux may be reused, however, at least 20% new flux shall be added each time to maintain the welding process performance and the mechanical properties of the weld metal.
Features and Applications:
l GQ‑215 is a fluoride‑basic type flux.
l The weld seam has low levels of impurities, sulfur, and phosphorus, thus exhibiting high low‑temperature impact toughness at –60 °C.
l The weld seam has a low diffusible hydrogen content, meeting the H5 requirement.
l When matched with YL‑ENi1K welding wire, it can be used for multi‑layer butt welding and fillet welding of low‑temperature steels.
l It is suitable for welding low‑temperature steels (1.5 % Ni steel plates), offshore engineering, bridges, towers, and structures with low‑temperature service requirements.
l Flux particle size: 10–60 mesh
l Flux basicity (BIIW): 2.3
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