IDENTIFICATION
Griduct 700, E 12018-G H4
CLASSIFICATION
AWS/SFA 5.5 : E 12018G-H4
E69Mn2NiCrMoH3
DESCRIPTION
Heavy coated Hydrogen controlled Low-alloy, High Tensile Electrode. The electrode works in all position and deposits weld metal of radiographic quality. The weld metal is of extremely high metallurgical purity is ageing-resistant, retaining good weld metal toughness down to -40°C.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Ni | Cr | Mo | V | Nb |
| 0.05 - 0.08 | 1.45 - 1.90 | 0.30 - 0.60 | 0.015 | 0.02 | 1.65 - 1.95 | 0.30 - 0.60 | 0.30 - 0.60 | 0.05 max | 0.05 max |
| max | max |
MECHANICAL PROPERTIES (RANGE)
| TS (MPa) | YS (MPa) | EL (%) (L=5D) | CVN Impact Value | |
| Temp | Joules | |||
| 780 min | 700 min | 17 min | -40°C | 47 min |
TYPICAL APPLICATIONS
• Penstock, earth moving equipments and heavy steel Fabrications made from high tensile steel.
• For welding USS -T1 steel, WEL -TEN 80 steels, SA 517 grade F and their equivalents. Specially recommended for welding ASTM AS17 Gr F Q&T steel.
• Excellent for welding fully killed fine grained steels.
WELDING PROCEDURE
Use short arc length. Weaving of electrodes, if necessary should be done at slow speed and keeping a short arc. The electrodes should be used in perfectly dry condition. The electrodes should be dried at 400° C for 1 hour to obtain better result. Maintain interpass temperature below 120° C.
DIFFUSIBLE HYDROGEN CONTENT : 4.0ml / 100g max of deposited weld metal
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | Amps | Packing / Box (kg) | Packing / Box (Pcs) |
| AC (90V) / DC (+) | ||||
| 2.5 | 350 | 60 - 95 | 5 x 4 = 20 | 160 x 4 = 640 |
| 3.15 / 3.20 | 450 | 90 - 130 | 5 x 4 = 20 | 110 x 4 = 440 |
| 4 | 450 | 140 - 190 | 5 x 4 = 20 | 70 x 4 = 280 |
| 5 | 450 | 190 - 240 | 5 x 4 = 20 | 45 x 4 = 180 |