Filler Metal R407 (AWS E9015-B3) Pearlitic Heat-Resistant Steel Welding Electrode Low-Hydrogen Welding Rods Manual Metal Arc Electrodes

Molybdenum and Chromium Molybdenum Heat Resistant Steel Welding Electrode

R407                                                        

GB/T E6015-B3

AWS A5.5 E9015-B3                      

Description: R407 is a pearlitic heat-resistant steel electrode with a low-hydrogen sodium coating containing 2.5% Cr – 1% Mo. Use DCEP (direct current electrode positive) and can welded in all positions. The weldment must be preheated to 200 ~ 300°C before welding.  

Application: Used for welding high-temperature and high-pressure pipelines with working temperature below 550°C, synthetic chemical machinery, petroleum cracking equipment, etc.

Chemical composition of weld metal(%):

Mechanical properties of weld metal:

Diffusion hydrogen content of deposited metal: ≤4.0mL/100g (glycerin method)

X-ray inspection:  I grade

Recommended current:

Notice:

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

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