DETAILS
Features
- Designed to meet the specific requirements of spiral pipe seam welding of up to API X80 grade pipe
- High speed welding capability for increased productivity
- Capable of producing weld deposits with impact properties exceeding 27 J (20 ft•lbf) at -51°C (-60°F) with Lincolnweld® LA-81
- Smooth bead profile achieves optimal appearance on both inner and outer diameter welds
- Self-peeling slag allows for clean and easy slag removal for reliable non-destructive testing results
- 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® Low Alloy Steel Lincolnweld® L-70, LA-81, LA-90
Typical Applications
- Spiral Pipe Manufacturing
- Weld up to API X80 pipe
- Two run welding applications
Special Features
- Basicity Index: 1.2 Density: 1.2 g/cm3
Disclaimers
Service Information
Documentation
You May Also Need
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 | Postweld Heat Treatment |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -20°C (0°F) |
Charpy V-Notch
J (ft-lbs) @ -40°C (-40°F) |
Charpy V-Notch
J (ft-lbs) @ -45°C (-50°F) |
---|---|---|---|---|---|---|---|---|
Lincolnweld® L-61® | F7A5-EM12K-H8 | As-welded | 410 (59) | 510 (74) | 32 | 180 (133) | ||
Lincolnweld® L-70 | F8A4-EA1-A4-H8 | As-welded | 510 (74) | 620 (89) | 27 | 53 (39) | ||
Lincolnweld® LA-75 | F7TA0-ENi1K | As-welded | 470 (68) | 640 (93) | 27 | 52 (38) | ||
Lincolnweld® LA-85 (LNS 165) | F8TA4-ENi5 | As-welded | 490 (71) | 620 (90) | 27 | 46 (34) | ||
Lincolnweld® LA-85 (LNS 165) | F9A4-ENi5 | As-welded | 560 (81) | 660 (96) | 25 | 58 (43) | ||
Lincolnweld® LA-90 | F9A4-EA3K-G-H8 | As-welded | 610 (88) | 720 (105) | 26 | 31 (23) | ||
Lincolnweld® L-S3 (LNS133U,L50M) | F7TA4-EH12K | As-welded | 490 (71) | 650 (95) | 25 | 53 (39) |
DEPOSIT COMPOSITION
Wire | Classification | %Ni | %C | %Cu | %Mn | %Mo | %P | %S | %Si |
Diffusible Hydrogen
mL/100g Weld Metal |
---|---|---|---|---|---|---|---|---|---|---|
Lincolnweld® L-61® | F7A5-EM12K-H8 | 0.05 | 0.07 | 1.56 | 0.014 | 0.009 | 0.40 | 5 | ||
Lincolnweld® L-70 | F8A4-EA1-A4-H8 | 0.05 | 0.16 | 1.39 | 0.57 | 0.020 | 0.008 | 0.40 | 5 | |
Lincolnweld® LA-85 (LNS 165) | F9A4-ENi5 | 0.88 | 0.05 | 0.11 | 1.71 | 0.24 | 0.015 | 0.005 | 0.45 | |
Lincolnweld® LA-90 | F9A4-EA3K-G-H8 | 0.07 | 0.16 | 2.09 | 0.45 | 0.015 | 0.006 | 0.77 | 4 |
FLUX COMPOSITION
Classification | %Al2O3 | %CaF2 | %CaO | %FeO | %MgO | %MnO | %Na2O | %SiO2 | %TiO2 | %ZrO2 |
---|---|---|---|---|---|---|---|---|---|---|
Typical Result | 31 | 14 | 5 | 4 | 24 | 10 | 3 | 22 | 1 | 3 |