Mô tả
OK NiCu-7
A nickel-copper electrode for welding NiCu alloys to themselves and to steels and for corrosion-resistant surfacing. The weld metal of OK NiCu-7 is crack resistant and ductile and meets rigorous requirements relating to corrosion resistance in sea water and in reducing and oxidising acids. OK NiCu-7 is used for welding corrosion-resistant monel alloys within the petroleum and ammonium sulphate industry and in power plants.
Classifications: | SFA/AWS A5.11:ENiCu-7, EN ISO 14172:E Ni 4060 (NiCu30Mn3Ti) |
Welding Current: | DC+ |
Ferrite Content: | FN 0 |
Alloy Type: | NiCu-alloy |
Coating Type: | Basic |
Typical Tensile Properties | |||
Condition | Yield Strength | Tensile Strength | Elongation |
AWS | |||
As welded | 410 MPa | 640 MPa | 40 % |
Typical Charpy V-Notch Properties | ||
Condition | Testing Temperature | Impact Value |
AWS | ||
As welded | 20 °C | 100 J |
As welded | -196 °C | 80 J |
Typical Weld Metal Analysis % | ||||||
C | Mn | Si | Ni | Cu | Fe | Ti |
0.02 | 3.0 | 0.5 | 66 | 29 | 1.9 | 0.4 |
Deposition Data | ||||||
Diameter | Current | Voltage | kg weld metal/ kg electrodes | Number of electrodes/kg weld metal | Fusion time per electrode at 90% I max | Deposition rate 90% I max |
2.5 x 300 mm | 50-70 A | 22 V | 0.63 | 83 | 45 s | 1.0 kg/h |
3.2 x 350 mm | 70-120 A | 26 V | 0.63 | 42 | 52 s | 1.6 kg/h |
4.0 x 350 mm | 120-140 A | 28 V | 0.63 | 28 | 54 s | 2.4 kg/h |
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