Description: 

  JN-HJ431 is a kind of smelting-type, red brown to light yellow colored, glassy granulated flux

with high manganese and silicon but low fluorine, mesh of 8-40(2.5-0.45mm) and 14-40(1.5-

0.45mm).

  Either alternating or direct current can be used but welding wires must be connected with the positive electrode when direct current is used.

  The welding technology has good performance.

Usage: 

  When applied to SAW wires such as EL-8, EM12 and EM13K, it can weld low-carbon

steel and some low-alloy steel like 16Mn and 15MnV, as well as ships, boilers and high-pressure vessels.

  It also can be used for  electro-slag and copper welding. 

Cautions: 

  1.The oil soil, moisture, iron rust and other foreign substances must be removed from the

surface before welding. 

  2.The flux must be baked under 300-400°C for 2 hours if affected with damp.