AWS ER70S-4 MIG Welding Wire

AWS A5.18 ER70S-4

Welding Wire ER70S-4

AWS A5.18 ER70S-4

MIG Welding Wire

MIG welding wire AWS A5.18 ER70S-4,welding wire has CO2 or Ar+CO25%-20% as shielding gas. It has excellent welding performance. It has good one-time shaping performance. When used in argon-rich mixed gas arc welding, the bead is delicate and beautiful.

Welding Wire ER70S-4

Application

AWS A5.18 ER70S-4 used for welding low-carbon steel and some low-alloy steel structures.

Chemical Composition (%)

Reference Current (DC+)

Welding Positions:

Notes:

1.The welding electrodes should be preheated 2 hour at 300~350℃ before welding.
2.The impurities such as rust, oil stains and moisture must be cleared off of the work piece.

AWS A5.18 ER70S-4

Welding Wire ER70S-4

Mechanical Properties of Deposited Metal (Ar+20%CO2 Gas shielded)

AWS A5.18 ER70S-4

Chemical Composition	C	Mn	Si	S	P	Ni	Cr	Mo	V	Cu
Guarantee Value	0.06~0.15	1.00~1.50	0.65~0.85	≦0.025	≦0.025	≦0.15	≦0.15	≦0.15	≦0.03	≦0.50
General Result	0.085	1.05	0.718	0.014	0.014	0.005	0.018	0.006	0.003	0.106

Test Item	Rm(N/mm²)	Rel/Rp_0.2(N/mm²)	A (%)	KV₂(J)-30℃
Guarantee Value	≧500	≧420	≧22	Not Required
General Result	540	450	30	93、87、95

Size(mm)	Current range (Amps)	GAS flow rate(L/min)
Φ0.8	50~100	15
Φ1.0	50~220	15~20
Φ1.2	80~350	15~25
Φ1.6	170~550	20~25