Dual Shield II 81-K2
The wire produces a smooth stable arc and low spatter levels using a 100% CO2 shielding gas. Dual Shield II 81-K2 was developed for higher tensile steels such as ASTM A302, A533 Class I and A537. Applications include ship fabrication, offshore oil rigs, and heavy equipment construction. This wire is an excellent choice for welding ASTM steels A302, A533 Class I and A537. Dual Shield II 81-K2 produces a smooth stable arc and low spatter levels using 100% CO2 shielding gas. Applications include ship building, offshore oilrigs, and heavy equipment construction.
Industries
- Civil Construction
- Industrial and General Fabrication
- Mobile Equipment
- Railcars
- Ship/Barge Building
Welding Process
- FCAW (Flux Core)
Typical Charpy V-Notch Properties
| as welded 100% co2 | ||||
Typical Tensile Properties
| Condition | Elongation | Reduction in Area | Shielding Gas | Tensile Strength | Yield Strength |
| As Welded | 27 % | 73 % | 100% CO2 | 570 MPa (82 ksi) | 515 MPa (74 ksi) |
Recommended Welding Parameters
| Current | TTW Dist. | Voltage | Wire Diameter | Wire Feed Speed |
| 100% CO2 | ||||
| 135-205 A | 9.5-12.7 mm (3/8-1/2 in.) | 23-26 V | 1.2 mm (.045 in.) | 381-660 cm/min (150-260 in./min) |
| 205-230 A | 12.7-19 mm (1/2-3/4 in.) | 25-27 V | 1.2 mm (.045 in.) | 660-965 cm/min (260-380 in./min) |
| 230-265 A | 19-25.4 mm (3/4-1 in.) | 26-30 V | 1.2 mm (.045 in.) | 965-1321 cm/min (380-520 in./min) |
| 125-235 A | 12.7-16 mm (1/2-5/8 in.) | 23-26 V | 1.4 mm (.052 in.) | 279-584 cm/min (110-230 in./min) |
| 235-290 A | 16-19 mm (5/8-3/4 in.) | 25-29 V | 1.4 mm (.052 in.) | 584-864 cm/min (230-340 in./min) |
| 290-350 A | 19-25.4 mm (3/4-1 in.) | 29-31 V | 1.4 mm (.052 in.) | 864-1194 cm/min (340-470 in./min) |
| 165-270 A | 16-19 mm (5/8-3/4 in.) | 25-28 V | 1.6 mm (1/16 in.) | 279-508 cm/min (110-200 in./min) |
| 270-345 A | 19-25.4 mm (3/4-1 in.) | 27-30 V | 1.6 mm (1/16 in.) | 508-762 cm/min (200-300 in./min) |
| 345-415 A | 25.4-31.75 mm (1-1.25 in.) | 28-32 V | 1.6 mm (1/16 in.) | 762-1067 cm/min (300-420 in./min) |
Deposition Data
| Current | Deposition Rate | Diameter | Deposition Efficiency (%) | Voltage | Wire Feed Speed |
| 100% CO2 | |||||
| 150 A | 1.91 kg/h (4.2 lb/h) | 1.2 mm (.045 in.) | 86 % | 28 V | 508 cm/min (200 in./min) |
| 210 A | 2.86 kg/h (6.3 lb/h) | 1.2 mm (.045 in.) | 86 % | 29 V | 762 cm/min (300 in./min) |
| 250 A | 3.86 kg/h (8.5 lb/h) | 1.2 mm (.045 in.) | 87 % | 30 V | 1016 cm/min (400 in./min) |
| 245 A | 3.31 kg/h (7.3 lb/h) | 1.4 mm (.052 in.) | 86 % | 28 V | 635 cm/min (250 in./min) |
| 310 A | 4.63 kg/h (10.2 lb/h) | 1.4 mm (.052 in.) | 85 % | 33 V | 889 cm/min (350 in./min) |
| 360 A | 6.03 kg/h (13.3 lb/h) | 1.4 mm (.052 in.) | 85 % | 36 V | 1143 cm/min (450 in./min) |
| 300 A | 4.63 kg/h (10.2 lb/h) | 1.6 mm (1/16 in.) | 87 % | 30 V | 635 cm/min (250 in./min) |
| 365 A | 5.58 kg/h (12.3 lb/h) | 1.6 mm (1/16 in.) | 86 % | 33 V | 762 cm/min (300 in./min) |
| 410 A | 6.35 kg/h (14 lb/h) | 1.6 mm (1/16 in.) | 88 % | 33 V | 889 cm/min (350 in./min) |
| 155 A | 2.00 kg/h (4.4 lb/h) | 1.4 mm (.052 in.) | 87 % | 25 V | 381 cm/min (150 in./min) |
| 190 A | 2.77 kg/h (6.1 lb/h) | 1.6 mm (1/16 in.) | 87 % | 27 V | 38 cm/min (150 in./min) |
Classifications
| Classifications |
ASME SFA 5.29 : ASME SFA 5.36 : AWS A5.36 : E81T1-C1A6-K2-H8 AWS A5.29 : E81T1-K2C-H8 |
Approvals
| Approvals |
ABS 5Y400SA H5 BV SA5Y50/SA5Y40 H5 CCS 5Y42SH5 CE EN 13479 ClassNK KSWL3G(C)H5, KSW54Y40G(C)H5 (C1) DNV V Y40MS H5 (C1) GL 6Y40H5S (C1) KR L3SG(C) H5 & 5Y40SG(C) H5 LR 5Y40S H5 (C1) RINA 5YS H10 (C1) RS 5Y40S H5, 5Y50S H5 (C1) |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Alloy Type | C Mn Ni |
| Diffusible Hydrogen | < 4 ml/100g |
| Shielding Gas | C1 (EN ISO 14175) |
| Welding Current | DC+ |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Mn | Ni | P | S | Si | |||||||||
| 100% CO2 | ||||||||||||||
| .025 % | 1.18 % | 1.44 % | 0.013 % | 0.009 % | 0.49 % | |||||||||
Part Numbers and Accessories
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