GRINOX 4, E 308-16
AWS /SFA 5.4: E 308- 16
IS: E 19.9 R 16, BS : 2926 19.9.R, DIN 8556 E 19.9.R23
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) %
MECHANICAL PROPERTIES (RANGE)
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.
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 :