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	R_m(MPa)	R_eL或R_p0.2(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.