IDENTIFICATION
GRINOX 18 E318-16
CLASSIFICATION
AWS/SFA 5.4: E 318 – 16 IS: E 19.12.2 Nb R 26
DESCRIPTION
An extruded, rutile based heavy coated all position electrode for welding 18/8/2 Chromium Nickel Molybdenum stabilised Stainless Steel.
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 & porosity. The weld bead is finely-ripple, smooth and regular. Due to stabilisation with Columbium, the weld deposit has increased resistance against Intergranular Corrosion and excellent creep strength upto 850°C.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Cb | Mo |
| 0.08 max | 1.0 - 2.5 | 0.9 max | 0.03 max | 0.03 max | 17.0 - 20.0 | 11.0 - 14.0 | 0.3 - 0.8 | 2.0 - 3.0 |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | YS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | |||
| 550 - 640 | - | 30 - 40 | 27°C | 70 - 98 |
TYPICAL APPLICATIONS
• For joining the above steels and also for surfacing unalloyed, low alloy and cast steels.
• Food stuffs, Dairy, Chemical and Aircraft Industries, Household Appliances, pipeline fitting, Hospital
apparatus, dyeing equipment, paper mills, bakeries, pickling plants and heat resistant castings.
• Corrosion - resistant stabilised Stainless Steel containing about 18% Cr, 9% Ni & 3% Mo and ferritic Chromium Steels.
• Also for stainless steel types AISI grades 317 & 318 LC-quality.
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.
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 = 120 |