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E71T-5C

E71T-5C/5M - Flux Cored Welding Wire

Used for welding carbon steel and low- alloy structural steel with tensile strength higher than or equal to 490MPa and with excellent low temperature toughness and good crack-resistance.Used for welding some key structures like shipbuilding, vehicles,mechanical manufacture pressure vessels,petrochemical machinery,hoisting machinery,etc

What is E71T

What is E71T-5C/5M

is a kind of calcium oxide-calcium fluoride type COz gas-shielded flux-cored welding wire for low carbon steel and 490MPa high strength steel.It has excellent welding performance,stable arc,good slag detachability,beautiful appearance of weld.Suitable for all welding positions.The weld metal has excellent low temperature toughness above -30℃ and goodcrack-resistance.

How E71T Works

      During welding, the flux core of the E71T wire generates a protective gas shield when it reacts with the heat of the arc. This shield protects the weld pool from atmospheric contamination, ensuring a clean and stable weld bead. The self-shielding nature of E71T makes it highly convenient for outdoor and windy conditions where using an external shielding gas may be challenging.

Product Structure Analysis

      Our E71T welding consumable is composed of several key components that work together to ensure optimal welding performance. The product structure includes:

  • Steel Core: The steel core provides the strength and structural integrity to the welding wire, enabling smooth feeding through the welding torch.
  • Flux Compound: The flux compound is situated within the core of the wire and is responsible for generating the shielding gas during welding.
  • Outer Sheath: The outer sheath acts as a protective layer for the core, ensuring the integrity of the welding wire during storage and handling.
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Specifications

Typical Chemical Composition of welding wire(%)

C

Mn

Si

P

S

Others

0.07

1.58

0.34

0.022

0.012

Typical Mechanical Properties of Deposited Metal(100%COz)

Yield Strength

ReL(Mpa

Tensile Strength Rm(Mpa

Elongation

δs(%)

Impact test

Temperature

(℃)

Impact Energy

KVz(J)

480

570

31

-30℃

185

Reference Current (DC+)

Wire Diameter(mm)

φ1.2

φ1.4

φ1.6

Current Range(A

F H FF

120~300

150~330

180~350

V

120~240

150~280

180~300

Packing terms

Diamete

0.8mm

0.9mm

1.0mm

1.2mm

1.6mm

Plastic spool 1kg D100mm


Plastic spool 5kg D200mm

Plastic spool 15kg D270mm

Product Applications

      Our E71T welding consumable finds broad applications in various industries and welding scenarios, including:

  • Structural fabrication
  • General welding and repair work
  • Welding in outdoor and windy conditions
  • Automotive repair and maintenance
  • Construction and infrastructure projects
  • Shipbuilding and marine industries

      With its exceptional performance and ease of use, our E71T welding consumable is a reliable choice for professional welders and welding operations across different sectors.

E71T Production Standard
  1. AWS A5.20: Specification for Carbon Steel Electrodes for Flux Cored Arc Welding – This standard provides requirements for carbon steel flux-cored electrodes used in the gas shielded arc welding process.

  2. ISO 17632-A: Classification of Wire Electrodes, Wires, and Rods for Gas Shielded Metal Arc Welding of Non-Alloy and Fine Grain Steels – This standard classifies wire electrodes, wires, and rods used in gas shielded metal arc welding of non-alloy and fine grain steels, including E71T.

  3. AWS A5.36: Specification for Carbon and Low-Alloy Steel Flux Cored Electrodes for Flux Cored Arc Welding and Metal Cored Electrodes for Gas Metal Arc Welding – This specification covers the requirements for carbon and low-alloy steel flux-cored electrodes used in flux-cored arc welding and metal cored electrodes used in gas metal arc welding.

  4. ISO 14341: Welding Consumables – Wire Electrodes and Deposits for Gas Shielded Metal Arc Welding of Non-Alloy and Fine Grain Steels – This standard specifies requirements for wire electrodes and deposits for gas shielded metal arc welding of non-alloy and fine grain steels, including the classification of E71T.

      Compliance with these standards ensures that E71T welding wire meets the necessary quality and performance requirements for gas shielded metal arc welding of carbon steels and low-alloy steels. It is essential to use welding consumables that conform to these standards to ensure safe and reliable welding operations.

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