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Flux for Submerged Arc welding of General Struct
AMA OP350A
| Standards: EN 760: | SA CS 3 97 AC |
| DIN 32 522 : | B CS 3 97 CCrMo AC 8 |
Type/ Characteristics:
Agglomerated alloy-bearing type flux for hard surfacing purposes, to be used in combination with 50-11, 50-22 wire electrodes. The alloying effect of the flux depends to a large degree on the welding parameters chosen. Optimum parameters for a 4 mm dia. Wire electrode are 600A/32V/50cm/min. welding speed. AMA-OP350 A is suitable to be used on either DC or AC.
Damp flux shall be redried by baking at 300°C.
All -Weld metal analysis (typical values):
| With Wire Electrode | Weight - % | |||||
|---|---|---|---|---|---|---|
| DIN/EN | C | Si | Mn | Cr | Mo | |
| 50-11 | S1 | 0.25 | 0.5 | 1.7 | 3 | 0.4 |
| 50-22 | S2crMo1 | 0.25 | 0.8 | 1.8 | 3.5 | 0.7 |
Mechanical properties of all-weld metal (typical values):
| With Wire Electrode | Hardness HB 30* |
|---|---|
| 50-11 | 350 - 450 |
| 50-22 | 460 - 540 |
*as to DIN 8555, sheet2, fig.2
Application: Hard surfacing of machine parts, driving gears, rails, support, rolls of caterpillars, etc.