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Home » Products » Welding electrodes for low alloy steel » AWS: E7018-G

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AWS: E7018-G

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AWS: E7018-G
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Product Description

GB：E5018-G
AWS：E7018-G
Current：Suitable for welding medium-carbon and low-carbon pressure vessels, such as 16MnDR, etc.
Main Applications：

J507FeNi

According with GB E5018-G
Corresponding with AWS E7018-G

Introduction: J507FeNi is a kind of low-alloy steel electrode with iron powder low-hydrogen type coating. DCRP (Direct Current Reversed Polarity). All-position welding. It has lower diffusible hydrogen content and excellent low temperature impact toughness.

Uses: Suitable for welding medium-carbon and low-carbon pressure vessels, such as 16MnDR, etc.

Chemical Composition of Deposited Metal (%)

Chemical Composition	C	Mn	Si	S	P	Ni
Guarantee Value	≤0.08	0.8~1.3	≤0.50	≤0.030	≤0.030	1.20~2.00

Mechanical Properties of Deposited Metal

Test Item	R_m(MPa)	R_eL或R_p0.2(Mpa)	A(%)	KV₂(J)
Guarantee Value	≥490	≥390	≥22	≥53(-40℃)
General Result	500~600	400~490	24~32	100~170

Diffusible Hydrogen Content in Deposited Metal:≤4.0ml/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	120~180	160~210

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.

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