J507NiTiB GBE5015-G AWS E7015-G Low-alloy Steel Electrode

J507NiTiB GBE5015-G AWS E7015-G Low-alloy Steel Electrode

J507NiTiB
GB:E5015-G
AWS:E7015-G
Current:Used for welding ships, boilers, mine construction machinery, ocean engineering structures and other key structures.

J507NiTiB

According with GB E5015-G
Corresponding with AWS E7015-G


Introduction: J507NiTiB is a kind of high toughness low-alloy steel electrode with low-hydrogen natrium type coating. The deposited metal contains Ni-Ti-B. It has excellent low temperature impact toughness and welding performance. DCRP (Direct Current Reversed Polarity). All-position welding.


Uses: Used for welding ships, boilers, mine construction machinery, ocean engineering structures and other key structures.


Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Ni
B
Ti
Guarantee Value
≤0.12
≤1.60
≤0.6
≤0.025
≤0.025
0.35~0.65
0.002~0.005
0.02~0.04

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
KV2(J)
Guarantee Value
≥490
≥410
≥24
≥47(-40℃)
-(-60℃)
General Result
500~590
420~480
26~34
80~200
60~140

Diffusible Hydrogen Content in Deposited Metal: ≤5.0ml/100g(Chromatography or Mercury Method)

X-ray Radiographic Inspection: ⅠDegree

Reference Current (DC+)
Electrode Diameter(mm)
φ2.5
φ3.2
φ4.0
φ5.0
Welding Current (A)
60~100
80~130
120~190
160~230

Instructions:
1.The electrodes must be baked under about 400℃ 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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