JIS D312-16
AWS E312-16

Description and Applications

Deposited metal contains two-phase of 29% Cr - 9% Ni ferrite in an austenitic matrix.  The high chromium content gives HE312 good oxidation prevention.  As the weld metals contain larger quantity of ferrite, the heat resistibility is good.

Welding of dissimilar metals such as 29% Cr - 9% Ni type coated steel, high nickel alloy steel to stainless steel, carbon steel or low alloy steel.

 

Guideline in Usage

1.

Preheat is unnecessary.

2. Keep arc and amperage as short and low as possible. Weaving width should be within 2.5 times electrode diameter.
3. Electrodes should be re-dried at 250 300℃ for one hour before use
4. Remove dirt such as oil and dust from the groove
 
 
Typical Chemical Composition of Weld Metal(%)
C Si Mn P S Ni Cr
0.100 0.450 1.23 0.021 0.011 10.3 29.00
 
Typical Mechanical Properties of Weld Metal
Yield Strength
N/mm2
Elongation
598 38
 
Size & Recommended Current RangeAC
Diameter (mm)
2.0 2.6 3.2 4.0 5.0
Length (mm) 
250 300 350 350 350
Current (Amp) F 30~50 6085 85120 115150 150~190
V,OH 30~50 50~75 75~105 95~130