Dual Shield II 70T-12H4

ESAB

Dual Shield II 70T-12H4

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Each of the new Dual Shield II H4 wires is an all-position flux cored wire that provides excellent low temperature toughness in both the as welded and/or stress relieved conditions (as applicable) when used with 75% Ar / 25% CO2. Each can produce diffusible hydrogen levels of 4 mL/100g over a wide range of welding parameters. Dual Shield II 70T-12H4 also provides the smooth arc and low spatter levels characteristic of other Dual Shield II wires. Dual Shield II 70T-12H4 can be used in construction, heavy equipment fabrication, offshore oil components, shipbuilding, and railcar. Weld metal analysis is similar to E7018.

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Industries

  • Bridge Construction
  • Civil Construction
  • Industrial and General Fabrication
  • Mobile Equipment
  • Railcars
  • Ship/Barge Building

Welding Process

  • FCAW (Flux Core)

Typical Charpy V-Notch Properties

Stress Relieved
Impact Value 76 ft-lb
Impact Value 103 J
Shielding Gas 75% Ar - 25% CO2
1150 °F
621 °C
2 hr
Testing Temperature -20 °F
Testing Temperature -29 °C

Typical Tensile Properties

Condition As Welded Stress Relieved
Reduction in Area 71 % 73 %
Shielding Gas 75% Ar - 25% CO2 75% Ar - 25% CO2
Tensile Strength 550 MPa (80 ksi) 540 MPa (78 ksi)
Yield Strength 495 MPa (72 ksi) 460 MPa (68 ksi)
Elongation 27 % 30 %
Testing Time 2 hr
Testing Temperature 621 degC (1150 degF)

Recommended Welding Parameters

Current TTW Dist. Voltage Wire Diameter Wire Feed Speed
75% Ar - 25% CO2
130-220 A 12.7-16 mm (1/2-5/8 in.) 22-26 V 1.2 mm (.045 in.) 249-508 cm/min (110-200 in./min)
220-280 A 16-19 mm (5/8-3/4 in.) 25-29 V 1.2 mm (.045 in.) 508-762 cm/min (200-300 in./min)
280-320 A 19-25.4 mm (3/4-1 in.) 26-31 V 1.2 mm (.045 in.) 762-1016 cm/min (300-400 in./min)
135-250 A 25.4-16 mm (1/2-5/8 in.) 22-26 V 1.4 mm (.052 in.) 279-584 cm/min (110-230 in./min)
250-280 A 16-19 mm (5/8-3/4 in.) 25-29 V 1.4 mm (.052 in.) 584-762 cm/min (230-300 in./min)
280-330 A 19-25.4 mm (3/4-1 in.) 26-31 V 1.4 mm (.052 in.) 762-1016 cm/min (300-400 in./min)
185-290 A 16-25.4 mm (5/8-1 in.) 24-28 V 1.6 mm (1/16 in.) 279-559 cm/min (110-220 in./min)
290-350 A 25.4-31.75 mm (1-1.25 in.) 26-30 V 1.6 mm (1/16 in.) 559-838 cm/min (220-330 in./min)

Deposition Data

Current Deposition Rate Diameter Deposition Efficiency (%) Voltage Wire Feed Speed
C - 25
145 A 1.72 kg/h (3.8 lb/h) 1.2 mm (.045 in.) 81.5 % 24.5 V 508 cm/min (200 in./min)
195 A 2.63 kg/h (5.8 lb/h) 1.2 mm (.045 in.) 81.8 % 26 V 762 cm/min (300 in./min)
245 A 3.58 kg/h (7.9 lb/h) 1.2 mm (.045 in.) 82.9 % 27.5 V 1016 cm/min (400 in./min)
285 A 4.49 kg/h (9.9 lb/h) 1.2 mm (.045 in.) 84.6 % 29 V 1270 cm/min (500 in./min)
155 A 1.58 kg/h (3.5 lb/h) 1.4 mm (.052 in.) 72.3 % 24 V 381 cm/min (150 in./min)
185 A 2.44 kg/h (5.4 lb/h) 1.4 mm (.052 in.) 82.1 % 25 V 508 cm/min (200 in./min)
250 A 3.67 kg/h (8.1 lb/h) 1.4 mm (.052 in.) 83.6 % 26.5 V 762 cm/min (300 in./min)
305 A 5.03 kg/h (11.1 lb/h) 1.4 mm (.052 in.) 85.2 % 28 V 1016 cm/min (400 in./min)
190 A 2.40 kg/h (5.3 lb/h) 1.6 mm (1/16 in.) 80.3 % 24 V 381 cm/min (150 in./min)
295 A 3.90 kg/h (8.6 lb/h) 1.6 mm (1/16 in.) 80.8 % 25 V 635 cm/min (250 in./min)
335 A 4.89 kg/h (10.8 lb/h) 1.6 mm (1/16 in.) 85.4 % 26 V 762 cm/min (300 in./min)
365 A 5.85 kg/h (12.9 lb/h) 1.6 mm (1/16 in.) 86.9 % 27 V 889 cm/min (350 in./min)
410 A 6.80 kg/h (15.0 lb/h) 1.6 mm (1/16 in.) 87.9 % 28 V 1016 cm/min (400 in./min)

Classifications

Classifications ASME SFA 5.36 :
ASME SFA 5.20 :
AWS A5.36 : E71T1-M21P2-CS2-H4
AWS A5.36 : E71T1-M21A4-CS2-H4
AWS A5.20 : E71T-1MJ-H4/T-9MJ-H4/T-12MJ-H4

Approvals

Approvals ABS
CWB CSA W48 E491T-12MJ-H4
DNV-GL
LR
Approvals are based on factory location. Please contact ESAB for more information.

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Mn P S Si
75% Ar - 25% CO2
0.049 % 1.18 % 0.012 % 0.007 % 0.37 %
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Part Numbers and Accessories

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Part Numbers : Dual Shield II 70T-12H4
245016548-GM FIND A DISTRIBUTOR
245016291 FIND A DISTRIBUTOR
245016290 FIND A DISTRIBUTOR
245016290-21 FIND A DISTRIBUTOR
245016373 FIND A DISTRIBUTOR
245016373-GM FIND A DISTRIBUTOR
425016326 FIND A DISTRIBUTOR
425016433 FIND A DISTRIBUTOR
245016316 FIND A DISTRIBUTOR
245016316-01 FIND A DISTRIBUTOR
245016365 FIND A DISTRIBUTOR
245016365-21 FIND A DISTRIBUTOR

ESAB EQUIPMENT WARRANTIES ARE VALID ONLY WHEN PURCHASED THROUGH AN ESAB AUTHORIZED DEALERSHIP.

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