Instruction

E7018 is a low-hydrogen-potassium-iron-powder coated carbon steel electrode. the iron powder in the coating increases the deposited rate. It has very good usability that enables it to have stable arc, low-spatter, removal of slag is easy and performs all-position welding. the deposited metal has good mechanical properties that offer very good low temperature toughness.

 APplication   

E7018 is applied in welding structures made of carbon steel and low-alloy steel such as 16Mn.

Chemical Composition(%)

Chemical Composition	C	Mn	Si	S	P	Ni	Cr	Mo	V
Guarantee Value	0.15	1.60	0.90	0.035	0.035	0.30	0.20	0.30	0.08
General Result	0.077	1.07	0.54	0.005	0.014	0.011	0.028	0.007	0.016

Mechanical Properties of Deposited Metal (Ar+10%CO2)

Test Item	Rm/MPa	ReL/Rp0.2/MPa	A(%)	KV2(J) -30C
Guarantee Value	490	400	20	27
General Result	550	455	32	156

Welding Parameter (DC+)

Diameter(mm)	2.5	3.2	4.0	5.0
Amperage	60 ~ 100	80 ~ 140	110 ~ 210	160 ~ 230

Notes:

1. E7018 carbon steel electrode must be preheated at the temperature of 350C for 1 hour. Preheat the rod whenever it is used.

2. the impurities such as rust, oil stains and moisture must be cleared off of the work piece. 

3. Short arc is required to perform welding. Narrow weld path is preferred. 

Welding Positions: