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DUAL SHIELD II 70-Ni1 H4

DUAL SHIELD II 70-Ni1 H4

Dual Shield II 70-Ni1 H4 is an all-position, flux-cored wire designed to be used under 75% Ar/25% CO2 gas protection. It provides excellent low temperature toughness in both as-welded or stress-relieved conditions. Dual Shield II 70-Ni1 H4 produces low diffusible Hydrogen levels – lower than 4ml/100g – over a wide range of welding parameters. The smooth arc, fast-freezing slag, low spatter levels and easy slag release make this an ideal wire for the welding of steel plate in all positions. Nickel content below 1% and Brinell hardness less than 200 meet the requirements for applications where resistance to stress-corrosion cracking is required. Dual Shield II 70-Ni1 H4 is used in the fabrication of storage vessels that need to be stress relieved to minimize the ocurrance of stress corrosion cracking (SCC). Typical Diffusible Hydrogen: 2 ml/100g of deposited metal

Where To Buy


Industries

  • Pressure Vessels

Specifications


Typical Tensile Properties

Flat Position
Condition Elongation Stress Relieved Temperature Stress Relieved Testing Time Tensile Strength Yield Strength
Stress Relieved 33 % 1150 °F 1 hr 74 ksi 62 ksi
Vertical Position
Condition Elongation Stress Relieved Temperature Stress Relieved Testing Time Tensile Strength Yield Strength
Stress Relieved 35 % 1150 °F 8 hr 74 ksi 62 ksi
Flat Position
Condition Elongation Stress Relieved Temperature Stress Relieved Testing Time Tensile Strength Yield Strength
As Welded 31 % - - 77 ksi 68 ksi

Typical Charpy V-Notch Properties

Condition Impact Value Testing Temperature Stress Relieved Testing Temp Stress Relieved Testing Time
As Welded 134 ft-lb -20 °F - -
As Welded 120 ft-lb -50 °F - -
Stress Relieved 172 ft-lb -20 °F 1150 °F 1 hr
Stress Relieved 151 ft-lb -50 °F 1150 °F 1 hr
Stress Relieved 175 ft-lb -20 °F 1150 °F 8 hr
Stress Relieved 121 ft-lb -50 °F 1150 °F 8 hr

Typical Weld Metal Analysis %

PMnMoCuCSSiVNiCr
0.010 %1.13 %0.01 %0.03 %0.02 %0.008 %0.25 %0.005 %0.90 %0.06 %

Classifications: ASME SFA 5.36, ASME SFA 5.29, AWS A5.36, E71T1-M21P5-Ni1-H4, AWS A5.29, E71T-1GMJ-H4, AWS A5.36, E71T1-M21A5-Ni1-H4

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