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. There 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 degrees C. Dual Shield Prime 71 LT H4 is designed to be used with either CO2 (C1) or Ar/CO2 (M21) shielding gas mixtures.

Typical Charpy V-Notch Properties

Impact Value Testing Temperature
as welded c1 shielding gas according to aws
97 J (72 ft-lb) -30 degC (-22 degF)
54 J (40 ft-lb) -40 degC (-40 degF)
as welded m21 shielding gas according to aws
117 J (87 ft-lb) -30 degC (-22 degF)
78 J (58 ft-lb) -40 degC (-40 degF)

Typical Tensile Properties

Condition As Welded As Welded
Shielding Gas M21 Shielding gas According to AWS C1 Shielding gas According to AWS
Tensile Strength 540 MPa (78 ksi) 525 MPa (76 ksi)
Yield Strength 480 MPa (70 ksi) 450 MPa (65 ksi)
Elongation 32 % 32 %

Deposition Data

Current Deposition Rate Diameter Voltage Wire Feed Speed
170-310 A 2.5-6.2 kg/h (5-13 lb/h) 1.2 mm (0.045 in.) 25-35 V 6.0-16.5 m/min (236-650 in./min)
180-420 A 1.8-7.5 kg/h (4-16 lb/h) 1.6 mm (1/16 in.) 24-38 V 3.0-13.0 m/min (118-512 in./min)


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 ABS 4Y400SA H5
CWB E491T1-C1A4-CS2-H4 (E491T-12J-H4), E491T1-M21A4-CS2-H4 (E491T-12MJ-H4)
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
Welding Current DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Mn Ni Si
0.04 % 1.30 % 0.45 % 0.40 %

How to purchase Dual Shield Prime 71 LT H4

We're as eager to put ESAB gear in your hands as you are to have it.  That's why we sell our products with distributors who'll give you the attention, support, and value you deserve.  Their expertise will make sure that you're as happy with the purchasing process as we know you'll be with your purchase itself.

To make things even easier, we've developed the online shopping list below.  As you browse our site, you'll be able to click on any product to have it added to this easy reference sheet.  And when you're done, you can send the list to yourself or print it out and bring it in to the distributor of your choice.

To find an ESAB distributor, just use the distributor locator tool featured on every page of our site.  Alternatively, you can call our support line at +361 382 1235 and we'll point you in the right direction.

Part Numbers and Accessories