IDENTIFICATION
GRINOX 9Cb E309Cb-16
CLASSIFICATION
AWS/SFA 5.4: E309Cb-16 IS: E23.12Cb R 26
DESCRIPTION
An extruded, rutile based heavy coated electrode giving 25 Cr / 12 Ni / 1 Cb type Stabilised stainless steel deposit.
Arc is soft & stable with easy strike and restrike. Low spatter and easily detachable slag. Weld bead is finely-rippled. The deposit is Cb-Stabilised and resistant to intergranular corrosion. It can withstand upto 1100°C. Joining stainless steel to low alloy or carbon steel.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Cb |
| 0.10 max | 0.5 - 2.50 | 0.9 max | 0.03 max | 0.03 max | 22.0 - 25.0 | 12.0 - 14.0 | 0.7 - 1.0 |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | ||
| 560 - 660 | 30 | 27°C | 50 - 100 |
TYPICAL APPLICATIONS
• Mainly used for welding 309 and 309 Cb plates service in the flange upto 850°C requiring resistance to
sensitization and consequent intergranular corrosion failure in chemical plants, furnaces.
• Also used for improving wear resistance by surfacing / building up of wear surfaces of wear resistant steels subject to high temperatures upto 1100°C.
• Joining stainless steel to low alloy or carbon steel. Applicable for AISI 309 Cb type stainless Steels, straight chrome steels and joining stainless steel to low alloy and carbon steels.
WELDING PROCEDURE
The base metal should be free from oil, Grease or Dirt before welding. Keep a short arc - length and avoid weaving. Weld bead should be cleaned with stainless steel wire brush.
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | AMPS AC / DC (+) | Packing / Box (kg) | Packing / Box (Pcs) |
| 2.5 | 350 | 70 - 90 | 2 x 5 = 10 | 94 x 5 = 470 |
| 3.15 / 3.20 | 350 | 100 - 120 | 2 x 5 = 10 | 60 x 5 = 300 |
| 4 | 350 | 120 - 140 | 2 x 5 = 10 | 38 x 5 = 190 |
| 5 | 350 | 140 - 180 | 2 x 5 = 10 | 24 x 5 = 120 |