AWS E8016-B2 Heat-Resistant Steel Welding Electrode R306 Stick Welding Rods Low Hydrogen Welding Materials

Short Description:

R306 (AWS E8016-B2) is a pearlitic heat-resistant steel electrode with a low-hydrogen potassium coating containing 1% Cr – 0.5% Mo.


Product Detail

Product Tags

Molybdenum and Chromium Molybdenum Heat Resistant Steel Welding Electrode

R306                                                        

GB/T E5516-B2

AWS A5.5 E8016-B2                       

Description: R306 is a pearlitic heat-resistant steel electrode with a low-hydrogen potassium coating containing 1% Cr – 0.5% Mo. Both AC and DC can be used, and can be welded in all positions. The weldment must be preheated to 160 ~ 250°C before welding.

Application: Used for welding Cr 1% – Mo 0.5% heat-resistant steel whose working temperature is below 520℃, such as boiler pipes, pressure vessels, vaporizers and petroleum refining equipment, etc.

 

Chemical composition of weld metal(%):

C

Mn

Si

Cr

Mo

S

P

0.05 ~ 0.12

0.50 ~ 0.90

≤0.60

0.80 ~ 1.50

0.40 ~ 0.65

≤0.030

≤0.030

 

Mechanical properties of weld metal:

Test item

Tensile strength

Mpa

Yield strength

Mpa

Elongation

%

Impact value (J)

Normal Temp.

Guaranteed

≥540

≥440

≥17

≥47

 

Recommended current:

Rod diameter

(mm)

2.5

3.2

4.0

5.0

Welding Current

(A)

60 ~ 90

90 ~ 130

140 ~ 180

180 ~ 210

 

Notice:

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

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

 

 


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