A702 welding wire is a maraging wire. After welding, it has a hardness of around 33 HRC and is easy to machine. After aging (3–4 hours at 480 °C), it can reach a hardness of 50–54 HRC. It is used for welding maraging steels and tools for hot and cold work. After aging, the welds have high toughness and good resistance to thermal shocks.
Welding wire A702
Hardness [HRc]
33
W.Nr.
1.6356
Purpose
1.2343, 1.2344, Maraging steels
- 1 pack of Straight wire contains 50 pieces
- 1 pack of Wire on a spool contains 50 m
Notes
Preheating is not necessary. Otherwise, follow general welding rules.
Chemical composition
| 0,02 | C |
| 18 | Ni |
| 12 | Co |
| 4 | Mo |
| 1,8 | Ti |
| 0,1 | Al |
| ostalo | Fe |
Straight wire
| Wire diameter [mm] | 1 piece of wire [g] | 50 pieces of wire [g] | 100 pieces of wire [g] |
| ɸ 0,2 | 0,123 | 6,16 | 12,32 |
| ɸ 0,3 | 0,277 | 13,87 | 27,73 |
| ɸ 0,4 | 0,493 | 24,65 | 49,30 |
| ɸ 0,5 | 0,770 | 38,52 | 77,03 |
| ɸ 0,6 | 1,109 | 55,45 | 110,90 |
| ɸ 0,7 | 1,509 | 75,45 | 150,90 |
| ɸ 0,8 | 1,972 | 98,60 | 197,20 |
Spool
| Wire diameter [mm] | 1m of wire [g] | 50m of wire [g] | 100m of wire [g] |
| ɸ 0,2 | 0,246 | 12,32 | 24,65 |
| ɸ 0,3 | 0,555 | 27,73 | 55,46 |
| ɸ 0,4 | 0,986 | 49,30 | 98,60 |
| ɸ 0,5 | 1,541 | 77,03 | 154,06 |
| ɸ 0,6 | 2,218 | 110,90 | 221,80 |
| ɸ 0,7 | 3,018 | 150,90 | 301,80 |
| ɸ 0,8 | 3,944 | 197,20 | 394,40 |
