IDENTIFICATION
GRINOX 320 E 320-16
CLASSIFICATION
AWS/SFA 5.4 E 320-16 ; BS: 2926 : 20.34.2.CuNb.B
DESCRIPTION
Rutile 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.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | Nb |
| 0.07 | 1.0 - 2.50 | 0.75 | 0.03 | 0.03 | 19.0 - 21.0 | 32.0 - 36.0 | 2.0 - 3.0 | 3.0 - 4.0 | 8 × C min Or |
| max | max | max | max | 0.40 max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) |
| 560 – 670 | 30 - 40 |
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 |