DETAILS
Features
- A nitrogen limiting flux designed for seam welding of pipe
- Recommended for longitudinal seam welding on a range of pipe steels
- Less than 5mL/100g of diffusible hydrogen in the weld deposit with both copper coated and non-copper coated (Emergence) welding wire
- Actual (Type 3.1) certificates for each lot of flux showing chemical composition, particle size and moisture level are available in the certificate center of lincolnelectric.com
- Mild Steel Lincolnweld® L-61®, Lincolnweld® Emergence™ 61 Low Alloy Steel Lincolnweld® L-70, LA-81, Lincolnweld® Emergence™ 70, 74, 81
Typical Applications
- Single or multiple arc welding
- Longitudinal welding of pipe
Special Features
- Basicity Index: 1.2 Density: 1.1 g/cm3
Disclaimers
Service Information
BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page
See test result disclaimer
MECHANICAL PROPERTIES
Wire | Classification |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) |
Charpy V-Notch
J (ft-lbs) @ -50°C (-60°F) |
Hardness Rockwell B |
---|---|---|---|---|---|---|---|
Lincolnweld® L-61® | F6TA2-EM12K-H8 | 540 (78) | 630 (92) | 28 | 35 (26) | 90 | |
Lincolnweld® L-70 | F8TA2-EA1-H8 | 510 (74) | 620 (90) | 26 | 61 (45) | 91 | |
Lincolnweld® LA-81 (LNS 140TB) | F8TA6-EA2TiB-H8 | 570 (82) | 650 (94) | 25 | 50 (37) |
DEPOSIT COMPOSITION
Wire | Classification | %B | %C | %Cu | %Mn | %Mo | %P | %S | %Si | %Ti |
Diffusible Hydrogen
mL/100g Weld Metal |
---|---|---|---|---|---|---|---|---|---|---|---|
Lincolnweld® L-61® | F6TA2-EM12K-H8 | 0.07 | 0.13 | 1.40 | 0.015 | 0.009 | 0.32 | 3 | |||
Lincolnweld® L-70 | F8TA2-EA1-H8 | 0.06 | 0.10 | 1.33 | 0.21 | 0.014 | 0.008 | 0.26 | 3 | ||
Lincolnweld® LA-81 (LNS 140TB) | F8TA6-EA2TiB-H8 | 0.0148 | 0.05 | 0.10 | 1.43 | 0.19 | 0.016 | 0.005 | 0.32 | 0.02 | 3 |
FLUX COMPOSITION
Classification | %Al2O3 | %CaF2 | %CaO | %FeO | %MgO | %MnO | %Na2O | %SiO2 | %TiO2 | %ZrO2 |
---|---|---|---|---|---|---|---|---|---|---|
Typical Result | 24 | 12 | 5 | 2 | 17 | 11 | 3 | 23 | 1 | 2 |