G307 stainless steel electrode

G307 stainless steel electrode

G307
GB：E430-15
AWS：E430-15
Current：Used for welding nitric acid corrosion-resistant and heat-resistant Cr17 stainless steel structures.
Main Applications：

G307

According with GB E430-15
Corresponding with AWS E430-15


Introduction: G307 is a kind of Cr17 stainless steel electrode with basic coating. DCRP (Direct Current Reversed Polarity). All-position welding.


Uses: Used for welding nitric acid corrosion-resistant and heat-resistant Cr17 stainless steel structures.


Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Cu
Ni
Mo
Cr
Guarantee Value
≤0.10
≤1.00
≤0.90
≤0.030
≤0.040
≤0.75
≤0.60
≤0.75
15.0~18.0

Mechanical Properties of Deposited Metal (The temperatures of the test pieces should be preserved under 760-790℃ for an hour, and then they should be cooled along with the furnace to 595℃ at a speed of not higher than 55℃/h, and finally cooled in the air.)
Test Item
Rm(MPa)
A(%)
Guarantee Value
≥450
≥20

Reference Current (DC+)
Electrode Diameter(mm)
φ2.0
φ2.5
φ3.2
φ4.0
φ5.0
Welding Current (A)
40~80
50~100
70~120
90~160
140~200

Instructions:
1.G307 electrodes must be baked under about 200-300℃ for an hour before welding.
2.The weldments should be preheated to 200℃ before welding, and tempered under 750-800℃ after welding.
3.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding.

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