AWS A5.29 E81T1-K2C

TOKO Brand, AWS A5.29 E81T1-K2C, is Co2 gas shielded low temperature carbon steel alloy flux cored welding wire, which is designed for welding 560 N/mm2 high tensile strength steel for low temperatures. The weld metal contains about 1.5%-Ni and makes good notch toughness at temperatures under  -60ºC  of welding condition.

It provides excellent usability with stable ARC and efficiency in all-positions of welding. It is suitable for butt or fillet welding of offshore steel structurest, petrochemicals engineering, shipbuilding, pressure vessel,  LNG and LPG carriers, and storage tanks, etc.

Flux-cored arc welding (FCAW or FCA) is a semi-automatic or automatic arc welding process. FCAW requires a continuously-fed consumable tubular electrode containing a flux and a constant-voltage or, less commonly, a constant-current welding power supply. An externally supplied shielding gas is sometimes used, but often the flux itself is relied upon to generate the necessary protection from the atmosphere, producing both gaseous protection and liquid slag protecting the weld. The process is widely used in construction because of its high welding speed and portability.

Applications:

AWS A5.29 E81T1-K2C is applied in welding high tensile strength steel structures equal to 560MPa. under -60ºC  of welding conditions. It is mainly uses for welding of offshore steel structurest, petrochemicals engineering, shipbuilding, pressure vessel,  LNG and LPG carriers, and storage tanks, etc.

Attentions before of Welding:

1. The oil stains and rust on the weldments should be cleared away before welding.

2. Shielding gas flow rate: 20-25L/min during welding.

3. Designed for welding with 100% CO2.

4. Storage : Vacuum packaging less than 12 months, other packaging less than 6 months.

 

  • AWS A5.29 E81T1-K2C 1.2MM Chemical Compositions (%)          
      C Mn Si S P Cr Ni Mo Balance
    Standard ≤0.15 0.50~1.75 ≤0.80 ≤0.030 ≤0.030 ≤0.15 1.0~2.0 ≤0.35 ---
    Test 0.05 1.25 0.20 0.008 0.015 0.02 1.25 0.005 ---

     

    AWS A5.29 E81T1-K2C Mechanical Properties of Welded Metal

    Impack Energy Average
      Yield Strength (N/mm)

    (kgf/mm2)

    Tensile Strength (N/mm2)

    (kgf/mm2)

    Elongation(%) (J)  Value  (J/℃)
    Standard ≥470 550~690 ≥19.50 ≥47 -40
    Test 590 650 26.50 70  71  72 70 J

 

Sizes and Current Range

   

Diameter (MM)

1.2MM 1.6MM
Current (Amp) Flat 280~300 A 290~310 A
ARC Voltage Vertical Up/Overhead 240-250 V 240-250 V

 

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and TOKO Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and Test results for mechanical properties, deposit or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.