GRINOX 9CB

IDENTIFICATION : GRINOX – 9 Cb
SPECIFICATIONS : AWS/SFA 5.4: E 309Cb - 16 IS : E 23.12 Cb R 26

DESCRIPTION :

An extruded, rutile based heavy coated electrode giving 25 Cr/12 Ni/1 Cb type Stabilised stainless steel deposit.

CHARACTERISTICS :

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.

TYPICAL USES :

Mainly used for welding 309 and 309 Cb plates service in the fange 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.


WELD METAL ANALYSIS (RANGE) % :

C Mn Si S P Cr Ni Cb
0.10 max 1.0-2.50 0.9 max 0.03 max 0.03 max 22.0-25.0 12.0-14.0 0.7-1.0

MECHANICAL PROPERTIES (RANGE) :

Tensile Strength MPa Yield Stress MPa Elongation (%) (L=4D) Charpy V-notch impact strength
560-600 30 30 min Temp Joule
27° C 50-100

RECOMMENDED CURRENT AND PACKING DATA :

SIZE (mm) LENGTH (mm) AMPS AC/DC (+) PACKING PER BOX (Pcs) WEIGHT / 1000 Pcs, Kg.
2.50 350 70-90 100x6=600 21.15
3.15 350 100-120 60X6=360 33.33
4.00 350 120-140 40X6=240 53.13