PRIMACORE® LW-75 is recommended for use in welding critical application including the fillet and butt welding of pressure vessels,offshore oil and gas platform structures and fabrication





- AWS A5.20/ ASME SFA-5.20: E71T-5M-J
- AWS A5.36 E71T5-M21A4-CS1
- Robust impact values@ -40°C .
- Excellent hot and cold crack resistance.
- Very low diffusible hydrogen.
- Good weldability including vertical up.
- Manufactured under a quality system certified to ISO 9001-2008 requirements
| PRIMACORE® LW-75 |
C% |
Mn% |
Si% |
S% |
P% |
|
Requirements AWS E71T-5M-J Max |
0.12 |
1.75 |
0.90 |
0.03 |
0.03 |
|
Test results 75-80%Ar/Balance CO2 |
0.05 |
1.30 |
0.65 |
0.01 |
0.013 |
|
PRIMACORE®LW-75 |
Yield Strength MPa |
Tensile Strength MPa |
Elongation % |
CVN Impact (J)@-40℃ |
Diffusible Hydrogen(ml/100g) |
|
Requirements AWS E71T-5M-J |
Min390 |
490-670 |
Min22 |
Min27 |
-- |
|
Test Results 75-80%Ar/Balance CO2 |
430 |
550 |
27 |
95 |
3.3 |
|
Diameter(mm) |
Spool/Drum Weight(kg) |
Pallet Weight(kg) |
|
1.2 1.4 1.6 |
15 15 15 |
1080 1080 1080 |
|
Diameter Polarity ESO mm(inches) |
Voltage(V) |
Approx.Current(A) |
|
1.2mm DC- 20mm(3/4in) |
21-22 23-24 25-26 27-28 29-30 31-32 |
220-270 230-290 250-320 260-330 280-350 290-360 |
|
1.6mm DC- 25mm(63/64) |
22-23 24-25 26-27 28-29 30-31 32-33 |
230-280 240-280 240-320 260-340 280-350 300-370 |