Low Alloy Steel Welding Electrode J506NiMA、J507NiMA GB/T E5016-G E5015-G AWS E7018-G E7015-G

Low Alloy Steel Welding Electrode

J506NiMA、J507NiMA                                                         

GB/T E5016-G  E5015-G

AWS E7018-G  E7015-G                                

Description: J506NiMA and J507NiMA are moisture-absorbing ultra-low hydrogen-coated low-alloy steel electrodes. The deposited metal has excellent plasticity, low-temperature toughness and crack resistance, and can be welded in all positions. The coating is resistant to moisture absorption. After the electrode is baked at 400°C x 1h and parked in an environment with a relative humidity ≥ 80% for 4 hours, the moisture content of the coating still meets the requirements for use.

Application: It is used for the welding of oil platforms, ships, pressure vessels, and other structures made of carbon steel and low alloy steel.

 Chemical composition of weld metal(%):

Mechanical properties of weld metal:

Diffusion hydrogen content of deposited metal: ≤5.0mL/100g (gas chromatography or mercury method)

Moisture content of  electrode coatings: ≤0.30%

 X-ray inspection:  I grade

Recommended current:

Notice:

1. The electrode must be baked for 1 hour at 350 ~ 400℃ before welding operation;

2. It is essential to clean up rusty, oil scale, water, and impurities on welding parts before welding;

3. Use short arc operation when welding. The narrow welding track is proper.