Flux-cored wire electrodes: “open arc” and submerged arc
Processes: “open arc” and submerged arc
| Standard designation | Standard analysis of the pure weld metal, % |
Hardness of the surfacing |
Application and properties | |
| EA 150 - FD DIN 8555: MF 1 -GF-200 |
C Si Mn |
0,06 0,6 0,9 |
150-200 HB | Flux-cored wire electrodes for weld surfacing on rollers and shafts, as well as on components intended for subsequent machining; for welding of shrink holes in steel castings |
| EA 250 - FD DIN 8555: MF 1 -GF-300 |
C Si Mn Cr Mo |
0,1 0,65 1,0 1,5 0,35 |
280-320 HB | Flux-cored wire electrodes for weld surfacing on rails, shunt points, couplings, clover-leaf crossings, shafts, etc.; for build-up welding of profiles on weldable C steels; as moderating layer before hard surfacing; weld metal machinable with high-speed cutting and hard-metal tools |
| EA 350 - FD DIN 8555: MF 1 -GF-350 |
C Si Mn Cr Mo |
0,14 0,75 1,5 2,5 0,3 |
330-370 HB | Flux-cored wire electrodes for weld surfacing on excavator components, chain links, guide ways, rotor discs, crane wheels, stators, wheel flanges, brake drums, forging dies, etc.; machining of weld metal still possible with carbide-tipped tools |
| EA 500 - FD DIN 8555: MF 1 -GF-450 |
C Si Mn Cr Mo |
0,2 0,75 1,5 2,5 0,3 |
400-500 HB | Flux-cored wire electrodes for weld surfacing on rotor discs, shafts, excavator crawlers, rope pulleys, transmission gear components, etc.; machining of weld metal possible only by grinding |
| EA 600 - FD DIN 8555: MF 6-GF-55 |
C Si Mn Cr Mo |
0,45 0,9 1,6 6,0 1,5 |
53-55 HRC | Flux-cored wire electrodes for ductile and wear-resistant claddings, insensitive toward impact stresses, and thus well suited for digging teeth and excavator blades, swage hammers, guide rails, roll-type crushers, edge mills, gravel pumps, worm conveyors, etc.; machining of weld metal possible only by grinding |
| EA 600 L - FD DIN 8555: MF 1 -GF-450 |
C Si Mn Cr Mo |
0,3 0,9 1,6 6,0 1,5 |
40-45 HRC | Same purpose and applications as for EA 600 - FD, but with lower hardness value |
| EA 600 TiC - FD DIN 8555: MF 6-GF 55 |
C Si Mn Cr Ti Mo |
1,7 0,3 1,3 6,5 5,0 1,3 |
54-56 HRC | Flux-cored wire electrodes for highly wear-resistant weld surfacing on components subject to impact, such as pick hammers, digging teeth, excavator blades, roll-type crushers, gravel pumps, worm conveyors, and other wear parts on crushers and hauling gear |
| 240 - FD DIN 8555: MF 10-GF-50 |
C Si Mn Cr |
2,8 1,7 1,7 15,0 |
35-50 HRC | Flux-cored wire electrodes for ductile, abrasion-resistant claddings which are subject to severe abrasive wear, but with only moderate exposure to impact; for excavator blades and digging teeth, suction-dredger components, crawler-type excavators, belt conveyors, worm conveyors, mixer paddles, agitator blades, and similar components |
| 255 - FD DIN 8555: MF 10-GF-60-RTZ |
C Si Mn Cr |
4,7 0,8 0,75 27,0 |
52-59 HRC | Flux-cored wire electrodes for abrasion-resistant weld-surfacing on components which are subject to severe abrasive wear, such as that caused by sand, gravel, coal, ores, slag, etc.; for worm conveyors, agitator blades, mixer paddles, pump components, and similar components; rust-resistant weld metal; weld surfacing in 2 or 3 passes to a thickness up to 6 mm |
| A 43 - FD DIN 8555: MF10-GF-60-RT |
C Si Mn Cr Nb |
5,0 0,5 0,7 22,0 7,0 |
56-62 HRC | Flux-cored wire electrodes for weld surfacing with the highest possible resistance to frictional and abrasive wear; for mixer components, ash conveyors, slag crushers, suction dredgers, centrifuge and guide elements on scale-removal equipment, digging teeth, excavator crawlers, etc.; cladding thickness: up to 6 mm in 2 passes |
| A 45 - FD DIN 8555: MF 10-GF-65-RT |
C Si Mn Cr Mo Nb W V |
5,5 0,7 0,8 22,0 5,0 7,0 2,0 1,0 |
bei RT: 58-62 HRC bei 550°C: 370-400 HB bei 600°C 350-380 HB |
Flux-cored wire electrodes for weld surfacing with extremely high resistance to frictional and abrasive wear at temperatures up to 600 °C; for cladding of crushers and grates in sintering plants, for cone stoppers on blast furnaces, for ore-dressing plants, for the cement industry, etc. |
| EA manganese - FD DIN 8555: MF 7-GF-200-KN |
C Si Mn Cr Ni |
0,95 0,4 14,0 3,5 0,5 |
200 HB n. Kaltver- festigung 450 HB |
Flux-cored wire electrodes for weld surfacing on austenitic manganese steels subject to impact wear; strain hardening of the weld metal up to 450 HB; for claddings subject to rolling or impact stress, as in the case of roller tables, beating arms, rails, hammers, crossing tongues, and similar items; for welding of joints on austenitic manganese steel; welding to be performed in the cold condition |
| 219 - FD DIN 8555: MF 7-GF-200-KN |
C Si Mn Cr |
1,0 0,35 20,0 5,0 |
200 HB after strain hardening 450 HB |
Flux-cored wire electrodes for weld surfacing on austenitic manganese steels with extremely low susceptibility to cracking; also for cladding of carbon steels which are difficult to weld; highly ductile weld metal; for weld surfacing on rails, paving breakers, crushers, etc.; strain hardening of the weld metal when subjected to stress |
| AP - FD DIN 8555: MF 7-GF-250-KN |
C Si Mn Cr |
0,5 0,3 16,5 12,0 |
200-250 HB after strain hardening 450 HB |
Flux-cored wire electrodes for weld surfacing on intermediate passes before hard surfacing with other wires; for welding of joints on austenitic manganese steel; non-magnetic; for weld surfacing on tramway rails and switch points; for intermediate passes on carbon steels and austenitic manganese steels, on rotary kiln rings, blast-furnace cones, digging teeth, pick hammers, grinding machines |
| 4370 - FD DIN 8555: MF 8-GF-200-KNTZ |
C Si Mn Cr Ni |
0,08 0,7 6,5 18,5 8,2 |
after strain hardening 400 HB |
Flux-cored wire electrodes with austenitic weld metal for welding of joints on steels which are difficult to weld, on austenitic manganese steels, for mixed joints; for weld surfacing and moderating layers; rust-proof weld metal; well suited for scale-resistant welds; strain hardening of the weld metal to 400 HB; highly ductile weld metal; mechanical property values: yield strength ≥ 340 N/mm2; tensile strength ≥ 600 N/mm2; expansion (L0 = 5 d0) 35%; notch impact energy (DVM specimen) 95 J |
| 624 - FD Special alloy |
C Mn Cr Nb |
1,0 15,0 8,0 3,0 |
250 HB after strain hardening 35-45 HRC |
These flux-cored wire electrodes are especially well suited for weld surfacing of sealing seats on blast-furnace cones. The electrodes are of the austenitic type, in which the excess carbon combines with niobium and forms hard, uniformly distributed niobium carbides. Consequently, this alloy type exhibits extremely high resistance to wear. Alloy 624 is characterised by an austenitic structure which does not undergo any metallurgical alterations during welding; hence, crack resistance is ensured over a wide range of thermal conditions, such as preheating and intermediate pass temperatures from 0 to 300 °C without difficulty. The workpiece can return to room temperature without problem before stress-relief annealing. |
| GS - FD Special alloy |
C Si Mn |
2,2 3,8 0,3 |
35-45 HRC | Upon slow cooling, the composition of the flux-cored wire electrode yields weld metal similar to grey cast iron, with a lamellar graphite structure. For avoiding cracks in the weld metal, the workpiece should be preheated to about 450 °C, and the temperature should be maintained constant during welding. The workpiece should subsequently be cooled as slowly as possible. For repair welding on ingot moulds, heat treatment is not necessary. This alloy is well suited for repair of GGL, of defects, ingot moulds, etc. |
Forms available on delivery: flux-cored wire (OPEN ARC) with dimensions 1.6; 2.0; 2.4; 2.8 mm – coil form as specified in EN 759; flux-cored wire (UP process) with dimensions 3.2 and 4.0 mm, in coils as specified in EN 759; further flux-cored wire qualities and wire dimensions available on request.