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JIS D309Mo-16
AWS E309Mo-16

Description and Applications

HE309Mo is a lime-titanium type stainless steel electrode. It has good weld ability and usability. The weld metal shows excellent corrosion, acid, and heat resistance, and the tensile strength is good in as-welded condition. It is suitable for welding of 22% Cr—12%Mo stainless steel, such as SUS316, SUS316L to mild steel. It is also applicable to clad steel side welding carbon steel and low alloy steel, etc.

 
Guideline in Usage
1.

Preheat is unnecessary.

2.

Keep the short arc and low amperage. 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 Mo
0.07 0.41 1.45 0.019 0.010 12.40 23.70 2.40
 
Typical Mechanical Properties of Weld Metal
Yield Strength
N/mm2
Elongation
630 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 5085 85120 115150 150~190
V,OH 30~50 50~80 75~105 95~130