Description: AFM 700 is a severe abrasion and considerable impact hardfacing electrode. Weld deposits have a martensitic structure that resists wear even in metal-to-metal mild steel contact. When used in the flat and horizontal positions, this electrode will exhibit a stable arc and produce weld deposits that are very smooth and finely rippled.
Applications: Typical applications for AFM 700 include plowshares, cultivator shoes, bucket teeth and lips, well drilling bits, cement mixer blades, shovel tracks and screw conveyors.
Procedures: Use AC or DC+. Preheating is generally not required. Using the weaving technique and keeping a short arc length, deposit up to 1/4¡± maximum. If more than two passes will be required, it is suggested that a ¡°padding layer¡± of AFM 300 be used prior to depositing AFM 700.
Typical Chemical Composition:
| ( C ) |
Carbon |
0.48 |
| ( Cr ) |
Chromium |
4.40 |
| ( Mn ) |
Manganese |
1.45 |
| ( Si ) |
Silicon |
0.80 |
Recommended Amperage (AC or DC+):
| Size |
1/8 |
5/32 |
3/16 |
1/4 |
| MM |
3.2 |
4.0 |
4.8 |
6.4 |
| Amps |
110-130 |
140-170 |
180-210 |
220-300 |
Packaging: All sizes are packaged in 10 lb. containers-3 containers per 30 lb. master carton.
