TWP 1968
TWP 1968E is a jet type electrode for joining and build up of various alloy steel. This electrode yields a tough, crack resistant weld deposit with excellent mechanical properties. It is very economical in use due to its high efficiency with a metal recovery of approximately 150%. TWP 1968W is an all position, gas shielded, flux cored wire for joining dissimilar steels.
It produces a smooth weld bead and can be used in all positions observing recommended operating parameters. Shielding gas is required.
Applications
TWP1968 is pariculary suitable for joining austenitic manganese steel to itself and carbon steel. Also recommended for build of machinery parts subjected to sliding wear and high impact loads, such as heavy construction equipment and as a cushion layer for hard overlays.
Welding Procedure
Clean weld area free from oil, grease, rust and other surface contaminants. Bevel heavy section before welding. Maintain a short arc and use stringer beads to prevent overheating. A weave technique may be employed when applying cushion layers prior to hardfacing. Allow deposit to cool before removing slag. Preheating and postweld heat treatment is generally not required, but may be specified or recommended for some base material.
TWP1968 Wire Welding Parameters
| Diameter | Position | Stickout +/-
.25”(6.35mm) |
Amps | Volts |
| .045” (1.2mm) | Flat | 1/2" -.75" (12-19mm) | 180 – 200 | 25 – 27 |
| .045” (1.2mm) | Horizontal | 1/2" -.75" (12-19mm) | 180 – 200 | 24 – 32 |
| .045” (1.2mm) | Vertical | 1/2" -.75" (12-19mm) | 150 – 170 | 24 – 26 |
| .045” (1.2mm) | Overhead | 1/2" -.75" (12-19mm) | 175 – 195 | 25 – 28 |
| 1/16” (1.6mm) | Flat | .75" (19mm) | 220 – 240 | 24 – 31 |
| 1/16” (1.6mm) | Horizontal | .75" (19mm) | 200 – 220 | 24 – 29 |
| 1/16” (1.6mm) | Vertical | .75" (19mm) | 190 – 210 | 24 – 27 |
| 1/16” (1.6mm) | Overhead | .75" (19mm) | 170 – 270 | 24 – 29 |
The above is based on a FCAW welding process with DC Reverse polarity, using no shielding gas. Shielding Gas: 75% Argon / 25% Co2 recommended, 100% CO2 can be used.
TWP1968 Electrode Welding Parameters
| Diameter | Amps |
| 1/8” (3.25mm) | 80 – 100 |
| 5/32” (4.0mm) | 110 – 130 |
| 3/16” (5.0mm) | 150 – 170 |