IDENTIFICATION
GRIBINOX 320LR E320LR-15
CLASSIFICATION
AWS/SFA 5.4: E320LR-15; BS: 2926: 20.34.2.CuNb.B
DESCRIPTION
Basic coated stainless steel electrode depositing fully austenitic, niobium stabilised weld metal with molybdenum and copper which has a high resistance to corrosion in sulphuric acid, other mineral acids, organic acids and their mixtures. Most parent material specifications are for castings. Deposited weld metal which is fully austenitic, has controlled level of phosphorus and silicon which helps
to eliminate solidification cracking tendency.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Mo | Nb | Cu |
| 0.03 | 1.50 - 2.50 | 0.3 | 0.015 | 0.02 | 19.0 - 21.0 | 32.0 - 36.0 | 2.0 - 3.0 | 8 x C min Or | 3.0 - 4.0 |
| max | max | max | max | 0.40 max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) |
| 520 min | 30 min |
TYPICAL APPLICATIONS
• Tanks
• Process piping
• Heat exchangers
• Agitators & Rotors, &
• Cast Pump.
• For use in the chemical processing, metal cleaning, & pickling industries
MICROSTRUCTURE
In the as-welded condition, the weld metal microstructure is fully austenitic.
REDRYING : 250°C / 2 hrs
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | AMPS DC (+) | Packing / Box (kg) | Packing / Box (Pcs) |
| 2.5 | 350 | 60 - 80 | 2 x 5 = 10 | 94 x 5 = 470 |
| 3.15 / 3.20 | 350 | 70 - 110 | 2 x 5 = 10 | 60 x 5 = 300 |
| 4 | 350 | 90 - 150 | 2 x 5 = 10 | 38 x 5 = 190 |
| 5 | 350 | 120 - 190 | 2 x 5 = 10 | 24 x 5 = 120 |