IDENTIFICATION
GRINOX 4, E 308-16
CLASSIFICATION
AWS /SFA 5.4: E 308- 16
IS: E 19.9 R 16, BS : 2926 19.9.R, DIN 8556 E 19.9.R23
DESCRIPTION
A rutile type & heavy coated electrode designed for welding low carbon 18% Cr/ 9% Ni type AISI 304 or equivalent austenitic stainless steel.
Weldable in all positions except vertical down. 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 bead is finely-rippled, smooth and regular. The deposited welds are of radiographic quality.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
| 0.080 max | 0.50 - 2.5 | 0.30 - 0.90 | 0.03 max | 0.04 max | 18.0 - 21.0 | 9.0 - 11.0 | 0.75 max | 0.75 max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | ||
| 550 min | 35 - 45 | 0°C | 55 min |
TYPICAL APPLICATIONS
ASTM /ASME 304, DIN: 1.4301, for welding 18/8 steels including 301, 302, 303. Cast steel: CF3, CF8, food brewery, pharmaceutical equipment, architectural, general fabrication, dairy, chemical & aircraft industries, household appliances, pipe-fittings, 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 wire brush.
MICROSTRUCTURE : Austenite with 3-10FN
ASME IX QUALIFICATION : QW – 432 F NO 5, QW - 442 A NO 8
REDRYING : 250°C / 2 hrs. max 5 cycles, 10 hr. total.
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | AMPS | Packing / Box (kg) | Packing / Box (Pcs) |
| AC (70V) / DC (+) | ||||
| 2.5 | 350 | 60 -85 | 2 x 5 = 10 | 94 X 5 = 470 |
| 3.15 / 3.20 | 350 | 80 - 100 | 2 x 5 = 10 | 60 X 5 = 300 |
| 4 | 350 | 110 - 140 | 2 x 5 = 10 | 38 X 5 = 190 |
| 5 | 350 | 130 - 200 | 2 x 5 = 10 | 24 x 5 = 120 |