IDENTIFICATION
GRINOX 47H E347-16
CLASSIFICATION
AWS/SFA 5.4: E 347-16 IS: E 19.9 Nb R 26
DESCRIPTION
An extruded, rutile based heavy coated electrode for welding 18/8 Chromium Nickel Stabilised stainless steel type AiSi/ASTM 321 or 347 grade.
Weldable in all positions. Arc striking and re-striking properties are excellent. Arc is soft & stable. The spatter is very low and the slag is easy to remove. The weld deposit is free from cracks and porosity. The weld bead is finely- rippled, smooth and regular. Due to stabilisation with Columbium, the weld deposit has increased resistance against intergranular Corrosion.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Cb + Ta |
| 0.05 - 0.08 | 0.70 - 2.50 | 0.90 max | 0.025 max | 0.03 max | 18.0 - 21.0 | 9.0 - 11.0 | 8 x % C min or 1 % max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | ||
| 540 - 640 | 30 - 40 | 27°C | 70 - 120 |
TYPICAL APPLICATIONS
For welding stainless steels type 321, 347, 304. Also for surfacing unalloyed, low alloy and cast steels, Food Stuffs, Dairy, Textile, Chemical & Aircraft Industries, Household appliances, pipe-line figgings, Hospital Apparatus, etc.
WELDING PROCEDURE
The base metal should be free from oil, Grease or Dirt before welding. Keep a short arc-length. The weld bead should be cleaned with stainless steel brush. Maintain interpass temperature 150°C max. Redry electrodes if required at 200°C for one hour.
IGC TEST : Passes the test as per ASTM A262 Practice “E”
FERRITE : 3 to 6
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | AMPS AC / DC (+) | Packing / Box (kg) | Packing / Box (Pcs) |
| 2.5 | 350 | 55 - 75 | 2 x 5 = 10 | 94 x 5 = 470 |
| 3.15 / 3.20 | 350 | 85 - 110 | 2 x 5 = 10 | 60 x 5 = 300 |
| 4 | 350 | 110 - 140 | 2 x 5 = 10 | 38 x 5 = 190 |
| 5 | 350 | 140 - 180 | 2 x 5 = 10 | 24 x 5 = 1 20 |