ESAB

Dual Shield Prime 71 LT H4

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A seamless, copper free, cored wire designed to weld thick steel components. The diffusible hydrogen level is consistently below 4mL/100g of deposited weld metal and with the seam of the wire being laser welded this ensures no moisture pick up. The wire is not copper coated, which means there is no chance of copper flakes contaminating feed liners, torches and contact tips. Dual Shield Prime 71 LT H4 is designed to weld medium strength steels (>420 MPa, >61 ksi yield strength) and provides excellent impact toughness down to -40° C (-40° F). Dual Shield Prime 71 LT H4 is designed to be used with either CO2 (C1) or Ar/CO2 shielding gas mixture.

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Typical Charpy V-Notch Properties

as welded 100% co2
as welded 75% ar - 25% co2

Typical Tensile Properties

Condition As Welded As Welded
Shielding Gas 75% Ar - 25% CO2 100% CO2
Tensile Strength 536 MPa (77.7 ksi) 513 MPa (74.4 ksi)
Yield Strength 477 MPa (69.1 ksi) 444 MPa (64.4 ksi)
Elongation 33 % 33 %

Deposition Data

Current Deposition Rate Diameter Voltage Wire Feed Speed
180-420 A 1.8-7.5 kg/h (4.0-16. lb/h) 1.6 mm (1/16 in.) 24-38 V 3.0-13.0 m/min (118-512 in./min)
170-310 A 2.5-6.2 kg/h (5.5-13. lb/h) 1.2 mm (0.045 in.) 25-35 V 6.0-16.5 m/min (236-650 in./min)

Classifications

Weld Metal SFA/AWS A5.20 : E71T-12C-J/12M-J-H4
EN ISO 17632-B : T494T12 1C1A H5
EN ISO 17632-B : T494T12 1M21A H5
EN ISO 17632-A : T42 4 P C1 1 H5
EN ISO 17632-A : T42 4 P M21 1 H5
JIS Z 3313 : T49 4 T1-1 C/M A-H5
KS D 7104 : YFL-A503R/YFL-C503R
SFA/AWS A5.20 : E71T-1C/1M/9C-J/9M-J-H4

Approvals

Approvals ABS 4Y400SA H5
CE EN 13479
CWB E491T1-C1A4-CS2-H4 (E491T-12J-H4)
CWB E491T1-M21A4-CS2-H4 (E491T-12MJ-H4)
DNV IV Y40MS H5 (C1)
DNV IV Y40MS H5 (M21)
LR 4Y40S H5
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type C Mn
Diffusible Hydrogen < 4 ml/100g
Shielding Gas M21, C1 (EN ISO 14175)
Welding Current DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Mn Ni Si
0.04 % 1.30 % 0.45 % 0.40 %
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Part Numbers and Accessories

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Part Numbers : Dual Shield Prime 71 LT H4
35MT12691V Find a distributor
35MT125600 Find a distributor
35MT12560V Find a distributor
35MT14560V Find a distributor
35MT16690V Find a distributor
35MT16246V Find a distributor

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

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