Product Details
YLF-81K2
Meet the Standards： |
GB/T10045-2018 T556T1-1C1A-N3 |
AWS A5.29 E81T1-K2C |
ISO 17632-A-T46 6 1.5Ni P C1 1 |
JIS Z3313 T556T1-1CA-N3 |
Description:
1. YLF-81K2 is a gas-shielded flux-cored wire for 550 MPa high-strength low-alloy steels. Containing 1.5% Ni, it offers excellent low-temperature impact toughness.
2. It provides excellent all-position weldability with low fume emission, a soft and stable arc, complete slag coverage, and very easy slag removal. Radiographic testing performance is excellent.
Applications:
Bridges, shipbuilding, storage tanks, port machinery, and offshore engineering.
Main Chemical Composition of the Welding Wire((%)
Element | C | Mn | Si |
Standard Value | ≤0.12 | ≤1.5 | ≤0.80 |
Typical Value | 0.06 | 1.2 | 0.35 |
S | P | Ni | Mo |
≤0.030 | ≤0.030 | 0.80-0.10 | ≤0.35 |
0.010 | 0.012 | 0.95 | 0.002 |
Weld Metal Mechanical Properties:
Mechanical Properties | Yield Strength
(MPa) | Tensile Strength(MPa) | Elongation (%) | Impact ValueJ/°C |
Typical Value | 549 | 623 | 26 | 105/-60 |
Radiographic testing requirement for welds: Grade I
Shielding Gas: CO₂
Precautions:
1. For multi-pass welding, the interpass temperature shall be controlled between 135 °C and 165 °C.
2. The shielding gas flow rate shall be maintained at approximately 15–25 L/min.
3. Prior to welding, remove all impurities from the base metal surface, including rust, primer, oil, grease, carbon-arc gouging scale, and welding slag.
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