Pipeweld 80DH
A low hydrogen electrode of AWS E8045-P2 type specially designed for downhill welding circumferential joints in pipelines API 5L X52- X70. Suitable for root pass in higher strength steels subject to welding procedure qualification. The low hydrogen weld metal provides high notch toughness and excellent ductility to reduce the risk of cracking. The electrode has been specially designed to provide excellent striking properties and elimination of start porosity. Productivity is significantly higher than conventional low hydrogen electrodes for welding vertically up.
Typical Charpy V-Notch Properties
| as welded iso | ||||
Typical Tensile Properties
| Condition | Elongation | Shielding Gas | Tensile Strength | Yield Strength |
| As Welded | 27 % | ISO | 620 MPa (90 ksi) | 530 MPa (77 ksi) |
Deposition Data
| Current | Deposition Rate @ 90% I max | Diameter | Deposition Efficiency (%) | Number of electrodes/kg weld metal | Voltage | |
| 80-90 A | 53 sec | 1.0 kg/h (2.2 lb/h) | 2.5 x 350.0 mm (0.098 x 13.8 in.) | 67 % | 67 | 25 V |
| 110-150 A | 53 sec | 1.6 kg/h (3.5 lb/h) | 3.2 x 350.0 mm (1/8 x 13.8 in.) | 68 % | 44 | 26 V |
| 180-220 A | 50 sec | 2.8 kg/h (6.2 lb/h) | 4.0 x 350.0 mm (5/32 x 13.8 in.) | 74 % | 27 | 28 V |
| 180-280 A | 50 sec | 3.4 kg/h (7.5 lb/h) | 4.5 x 350.0 mm | 71 % | 23 | 28 V |
Classifications
| Classifications |
SFA/AWS A5.5 : E8045-P2 H4R EN ISO 2560-A : E 46 4 B 45 H5 |
Consumable Characteristics
| Alloy Type | Carbon Manganese |
| Coating Type | Basic covering |
| Diffusible Hydrogen | < 4.0ml/100g |
| Welding Current | DC+ |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Mn | Si | ||||||||||||
| 0.07 % | 1.25 % | 0.5 % | ||||||||||||
Part Numbers and Accessories
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