Product Details
Meets standards： |
GB/T 5293-2018: S55A4U FB-SUG H5 |
AWS A 5.23: F55A4-EG |
EN ISO 14171: S A FB 1 65 AC |
GB/T 36037 : S A FB 1 65 AC H5 |
SiO2 | Al2O3 | CaO+MgO+MnO+CaF2 | CaF2 |
14 | 17 | 60 | 23 |
Mechanical Properties of Deposited Metal
Welding Wire |
PWHT | Yield Strength（MPa） | Tensile Strength（MPa） | Elongation （%） | Charpy V‑notch Impact Absorbed Energy (J) | |
-40℃ | -50℃ | |||||
YL-EH14 | - | 610 | 646 | 28 | 130 | 90 |
Chemical Composition of Deposited Metal（%）
Welding Wire | C | Mn | Ti | Mo | S | P |
YL-EH14 | 0.06 | 1.64 | 0.05 | 0.37 | 0.005 | 0.010 |
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-121 is a fluoride‑basic type flux.
l The weld seam has low contents of impurities, sulfur, and phosphorus, and exhibits high low‑temperature impact toughness.
l The weld seam has a low diffusible hydrogen content, meeting the H5 requirement.
l The combination of GQ121 / H08MnMoTiB offers excellent welding process performance, with stable arc, good bead appearance, and easy slag removal.
l It is suitable for welding base metals with a tensile strength grade of 620 MPa (e.g., X70, X80), and is mainly applied in the pipeline industry.
l Flux particle size: 10–60 mesh
l Flux basicity (BIIW): 1.8
Main Chemical Composition of Flux（%）
SJ101
SJ101G
SJ102NQ
SJ105Q