AquaSan Ni50 is a specially formulated, nickel based covered electrode with a waterproof coating for the welding of high strength steels with a Carbon Equivalent (CE) >0.4.
AquaSan Ni50 is specified for welding base materials with a CE >0.4, which are susceptible to hydrogen embrittlement. Nickel has a high affinity for hydrogen and this composition allows hydrogen to diffuse into the weld metal and away from the high strength steel.
AWS A5.35: (pending initial publication).
Chemical composition (nominal) %
AquaSan Ni50 has been qualified for underwater welding of the following steel types to a maximum depth of 50 ft (15m):
|Grades: HY 80, HY 100, 204B, A36, 300 series stainless steels
Forms of supply
One 30 lb (13.5 kg) carton of AquaSan Ni50 electrodes includes 3 x 10 lb (4.5 kg) plastic containers. Each 10 lb plastic container includes 5 x 2 lb (0.9 kg) sealed plastic bags.
Weld metal characteristics
The all weld metal for AquaSan Ni50 has a fully Austenitic matrix.
|Temperature||°C (°F)||20 (68)|
|Proof strength, RP0.2
||MPa (ksi)||524 (76)|
|Tensile strength, Rm||MPa (ksi)||648 (101)|
|Diameter, mm (in.)||2.4 mm (0.093)|
|Current, A||90-110 (105 typical)|