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OK Autrod 19.40
GMAW
An aluminium-bronze (CuAl8) electrode for the GMAW of rolled and cast aluminium-bronze alloys. The alloy is noted for its high strength, good wear resistance and very good corrosion resistance, particulary in salt water. OK Autrod 19.40 is usually welded with pure Ar as the shielding gas.
Welding current, A
DC(+)
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | SFA/AWS A5.7 | | ERCuAl-A1 | | EN 14640 | | S Cu 6100 (CuAl8) |
| | | Si | <0,1 | | Mn | <0,5 | | Al | 7,8 | | Fe | <0,5 | | Cu | bal. | | Wire composition |
| Yield stress, MPa
175
Tensile strength, MPa
420
Elongation, %
40
Elongation, %
40
Weld metal hardness, a w
126 HV
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 70 |
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| Diameter, mm | 0,8 | 1,0 | 1,2 | 1,6 | | Arc voltage, V | 13,0-17,5 | 12,5-18,0 | 16,0-29,0 | - | | Welding current, A | 60-165 | 80-210 | 150-320 | - | | Wire feed, m/min | 4,0-13,0 | 4,0-12,0 | 5,0-11,5 | - |
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