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AquaSan Ni50

Product catalog summary

Product Overview:
AquaSan Ni50 is a nickel-based covered electrode with a waterproof coating, designed for welding high strength steels with a Carbon Equivalent (CE) greater than 0.4. It is particularly effective for materials prone to hydrogen embrittlement due to nickel's ability to diffuse hydrogen away from the steel.

Standards:
The product is pending initial publication under AWS A5.35 standards.

Chemical Composition (Nominal %):

Carbon (C): ≤0.08
Silicon (Si): 0.3
Manganese (Mn): 2.4
Chromium (Cr): 12
Nickel (Ni): 64
Molybdenum (Mo): 6.5

Applications:
AquaSan Ni50 is suitable for underwater welding of steel types such as HY 80, HY 100, 204B, A36, and 300 series stainless steels, up to a depth of 50 ft (15m).

Forms of Supply:
The electrodes are packaged in a 30 lb (13.5 kg) carton, containing three 10 lb (4.5 kg) plastic containers, each with five 2 lb (0.9 kg) sealed plastic bags.

Weld Metal Characteristics:
The weld metal has a fully Austenitic matrix.

Mechanical Properties:

Temperature: 20°C (68°F)
Proof strength, R_P0.2: 524 MPa (76 ksi)
Tensile strength, R_m: 648 MPa (101 ksi)
Elongation, A5: 14%

Welding Data:

Welding positions: All
Current/polarity: DC/-
Diameter: 2.4 mm (0.093 in.)
Current: 90-110 A (105 A typical)

Disclaimer:
Recommendations are for guidance only. The suitability of a material for a specific application can be confirmed only when actual service conditions are known. Continuous development may necessitate changes in technical data without notice. This datasheet is valid only for Sandvik materials.

Catalog excerpts

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. STANDARDS - AWS A5.35: (pending initial publication). CHEMICAL COMPOSITION (NOMINAL) % Chemical composition (nominal) % C Si Mn Cr Ni Mo APPLICATIONS 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 Datasheet updated 5/17/2018 3:59:38 PM (supersedes all previous editions) FORMS OF SUPPLY Packaging 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 Microstructure The all weld metal for AquaSan Ni50 has a fully Austenitic matrix. MECHANICAL PROPERTIES Temperature °C (°F) 20 (68) Proof strength, Rp0.2 MPa (ksi) 524 (76) Tensile strength, Rm MPa (ksi) 648 (101)

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Welding data Welding positions Datasheet updated 5/17/2018 3:59:38 PM (supersedes all previous editions) Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. www.smt.sandvik.com/contact-us SMT.SANDVIK.COM

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