An extruded, rutile based heavy coated electrode for welding 25/20 Chromium Nickel 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 bead is finely-rippled, smooth and regular. The deposit is highly resistant to cracking. Scale resistance upto 1000°C The deposited weld metal is of radiographic quality.
For joining the above heat resisting steels and also for surfacing unalloyed, low/high alloy and cast steels. Furnace fabrication, apparatus, steam boilers, piping & fittings, textile, paper, paint, rubber and glass industries, heat treatment shops, gas turbines, oil refineries, furnace fabrication, etc.
Highly stressed corrosion-resistant Stainless steel containing about 25% Chromium & 20% Nickel. Also for Stainless Steel AISI grades 309 & 310 and clad steels. Also used for joining dissimilar steels, straight Chromium Steels, welding intermediate zones between mild steel and Stainless Steels, joining difficult alloy/High Carbon Steels.
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. Ferrite Number of the weld : O
|0.08-0.16||1.0-2.5||0.03 max||0.03 max||25.0-28.0||20.0-22.50||0.75 max||0.50 max|
|Tensile Strength N/mm2||Yield Stress N/mm2||Elongation (%) (L=4D)||Impact Value|
SCALING TEMPERATURE : 1000°C in air
MICROSTRUCTURE : Consists of austenite with 14 to 28 FN
ASME IX QUALIFICATION : QW-432 F-NUMBER 5, QW-442 A-NUMBER 8
REDRYING : 300°C / 2 hrs., max 5 cycles, 10 hr. total.
|SIZE (mm)||LENGTH (mm)||AC 70(OCV)/ DC(+) Current Range (Amps)||PACKING PER BOX||WEIGHT 1000 Pcs|