J507CrNi Corrosion-resistant Steel Electrode

J507CrNi Corrosion-resistant Steel Electrode

J507CrNi
GB:E5015-G
AWS:
Current:Suitable for welding key ocean structures which can resist seawater corrosion, such as Q235, 16Mn, Cr-Al system, etc.

J507CrNi

According with GB E5015-G


Introduction: J507CrNi is a kind of seawater corrosion-resistant low-alloy steel electrode with low-hydrogen natrium type coating. It has excellent plasticity, low temperature toughness and seawater corrosion-resistance. DCRP (Direct Current Reversed Polarity). All-position welding.


Uses: Suitable for welding key ocean structures which can resist seawater corrosion, such as Q235, 16Mn, Cr-Al system, etc.


Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Cu
Ni
Cr
Guarantee Value
≤0.10
0.50~1.20
≤0.50
≤0.035
≤0.035
0.20~0.50
0.20~0.50
0.50~0.80

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥490
≥390
≥22
≥27(-30℃)
General Result
550~600
450~550
24~30
100~150

Diffusible Hydrogen Content in Deposited Metal: ≤6.0ml/100g(Glycerine Hydrogen Test)

X-ray Radiographic Inspection: ⅠDegree

Reference Current (DC+)
Electrode Diameter(mm)
φ3.2
φ4.0
φ5.0
Welding Current (A)
90~120
140~180
170~210

Instructions:
1.The electrodes must be baked under about 350℃ for an hour before welding, and used as soon as baking is completed.
2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding.
3.When welding, short arc must be used and stringer bead is suitable.


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