AWS E7018 A5.1 Mild Carbon Steel Welding Rod

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Description

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Material	Carbon Steel
Diameter	2.0mm, 2.5mm, 3.2mm, 4.0mm
Length	300-500mm
Welding Current	50-240A
Operating Current	50-280A
Operating Temperature	20-40 centigrade
Color	Grey /Grey-white

Chemical Composition of Deposited Metal (%)
Carbon (C)	Manganese (Mn)	Silicon (Si)	Sulfur (S)	Phosphorous (P)
=0.12	=1.6	=0.75	=0.035	=0.04

Mechanical Properties of Deposited Metal (%)
Test Item	Rm (Mpa)	ReL (Mpa)	A (%)	KV2(J)	KV2(J)
Guarantee Value	=420	=340	=25	-(normal temperature)	-(0°C)
General Result	460-540	=340	18-26	50-80	=47

Reference Current (AC, DC+)
Electrode Diameter(mm)	f2.0	f2.5	f3.2	f4.0
Welding Current(A)	40-70	50-90	90-130	130-210

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E7018 electrode coverings are similar to E7015 coverings, except for the addition of a relatively high percentage of iron powder. The coverings on these electrodes are slightly thicker than those of the E7016 electrodes. E7018 low-hydrogen electrodes can be used with either ac. They are designed for the same applications as the E7016 electrodes.

As is common with all low-hydrogen electrodes, a short arc length should be maintained at all times. In addition to their use on carbon steel, the E7018 electrodes are also used for joints involving high-strength, high-carbon, or low-alloy steels. The fillet welds made in the horizontal and flat welding positions have a slightly convex weld face, with a smooth and finely rippled surface. The electrodes are characterized by a smooth, quiet arc, very low spatter, and medium arc penetration. E7018 electrodes can be used at high travel speeds.

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