AWS A5.18 ER70S-G
Welding Wire ER70S-G
MIG welding wire AWS A5.18 ER70S-G, The welding current has been strengthened to a great extent and the welding efficiency has been improved. Because the grains of the deposited metal have been refined, both the tensile strength and the yield strength are 50kg close to the upper limit of the welding materials of shipping society approve.
AWS A5.18 ER70S-G welding wire
Application
AWS A5.18 ER70S-G
1. Used for welding all kinds of 500MPa structural steel parts, thick plates and thick pipelines.
2. Used for high speed welding on 500MPa base metals.
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.
Mechanical Properties of Deposited Metal (Ar+20%CO2 Gas shielded)
|
Chemical Composition
|
C
|
Mn
|
Si
|
S
|
P
|
Ti+Zr
|
Cu
|
|
Guarantee Value
|
≦0.15
|
1.40~1.90
|
0.55~1.10
|
≦0.030
|
≦0.030
|
≦0.30
|
≦0.50
|
|
General Result
|
0.058
|
1.44
|
0.73
|
0.012
|
0.009
|
0.17
|
0.124
|
|
Test Item
|
Rm(N/mm2)
|
Rel/Rp0.2(N/mm2)
|
A (%)
|
KV2(J)-30℃
|
|
Guarantee Value
|
≧500
|
≧420
|
≧22
|
≧27
|
|
General Result
|
550
|
455
|
29
|
114、131、127
|
|
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
|
