E7018

Approved by: ABS CCS LR GL DNV BV CE

Description： E7018 is an alkaline, Fe powder carbon steel electrode designed for all positional welding. With good welding properties like low spatter, good slag removal, easy arc strike and re-strike, good-looking weld appearance etc. Excellent mechanical performance and crack resistance.

Application: E7018 Used to weld the Marine steel (A、B、D、E、AH36、DH36、EH36）and the same grade strength, low carbon steel structures like Boilers, Pressure Vessels and Offshore drilling platforms etc.

Description

Comply to GB/T 5117 E5018, equivalent to AWS A5.1 E7018

Instruction

E7018 is one of Anchor Weld’s welding consumable products. CJ506Fe carbon steel rods with coating, suited for both DC and AC. ll position welding, the seam is perfect with fine mechanical and resistance performance. Spatter minimal, slag easily detachable.

Application

Carbon steel or low alloy steel, ship hull plate of grade A, B, D, E. others like boiler, pressure vessel.

Deposited metal composition(%)

C	Mn*	S	Si	P	Cr*	Ni*	Mo*	V*
≤0.12	≤1.6	≤0.035	≤0.75	≤0.040	≤0.20	≤0.30	≤0.30	≤0.08

Total element of *≤1.75%

Mechanical properties of deposited metal

Tensile Strength (Rm) MPa	Lower Yield strength (ReL)	Elongation (A) %	Impacting force(J)
			-30 oC	-20 oC
≥490	≥400	≥22	≥27	≥47

Diffusion hydrogen content: ≤8.0ml/100g(Glycerin hydrogen test) X radiographic requirement: Class I

Reference current (AC or DC+)

Dia.(mm)	Ф3.2	Ф4.0	Ф5.0
Length(mm)	350	400	400
Current(A)	100-140	140-180	190-240

Directions

The welding rod must be baked at about 400 for one hour before the welding
The impurities such as rust, oil stain and water must be removed before the welding
Short arc operation is required during welding where it is favorable to use narrow weld

THE MOST COMMON 7018 WELDING ROD USES

Because of the high tensile nature of the welds and their crack-resistant properties, the 7018 is most commonly used in industrial applications such as pipe welding, welding of pressure vessels, boilers, heavy equipment, ships, bridges, and manufacturing.

The 7018 also works pretty well on hard-to-weld metals which increases this electrode’s versatility.

Some of the hard-to-weld surfaces on which the 7018 electrodes can perform include surfaces such as simple low alloy steels and low-quality steels with a higher presence of sulfur. Surfaces that might face high levels of impact over a long time, any weld that might face an impact at a low temperature, or joints with very complex designs.