Nickel and Nickel Alloy Welding Electrode AWS A5.11 ENiCrFe-7 Low Hydrogen Nickel Welding Rods, Arc Welding Stick

Short Description:

Ni307-7 (ENiCrFe-7) is a nickel-based electrode with low-hydrogen sodium coating. Use DCEP (direct current electrode positive).


Product Detail

Product Tags

Nickel and Nickel Alloy Welding Electrode

Ni307-7                                                       

GB/T ENi6152

AWS A5.11 ENiCrFe-7        

 

Description: Ni307-7 is a nickel-based electrode with low-hydrogen sodium coating. Use DCEP (direct current electrode positive). It has excellent welding performance with stable arc combustion, less spatter, easy removing slag,and beautiful weld. The deposited metal has stable mechanical properties and good corrosion resistance in high-temperature oxidizing and sulfur-containing atmospheres.

 

Application:Used in nuclear engineering, sulfuric acid, nitric acid and hydrogen fluorine manufacturing equipment, such as nickel 690 alloy, ASTM B166, B167, b168, etc., can also be used for welding nickel-chromium iron and stainless steel and surfacing corrosion-resistant layers on steel.

 

 Chemical composition of weld metal(%):

C

Mn

Fe

Si

Ni

Cr

≤0.05

≤5.0

7.0 ~ 12.0

≤0.8

≥50.0

28.0 ~ 31.5

Cu

Mo

Nb

S

P

Other

≤0.5

≤0.5

1.0 ~ 2.5

≤0.015

≤0.020

≤0.5

 

Mechanical properties of weld metal:

Test item

Tensile strength

Mpa

Yield strength

Mpa

Elongation

%

Guaranteed

≥550

≥360

≥27

 

Recommended current:

Rod diameter

(mm)

2.5

3.2

4.0

Welding current

(A)

60 ~ 90

80 ~ 110

110 ~ 150

 

Notice:

1. The electrode must be baked for1 hour at around 300℃ before welding operation;

2. It is essential to clean up rusty, oil, water, and impurities on welding parts before welding. Try to use a short arc to weld.

 

 


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