3
Table 5-2 – Mild Steel and Low
Alloy Steel Wires Mechanical Property Requirements*
YIELD SPOOLARC
STRENGTH DESIG-
SHIELDING CURRENT
& TENSILE
@
0.2% ELONG. IN MINIMUM
”V” AWS CLASS
NATION GAS
POLARITY STRENGTH
OFFSET 2”
MIN.% NOTCH IMPACT
MIN. PSI
MIN. PSI (MPa)
(MPa) ER70S-2
65 Al
1.5% O2 1
70,000 58,000
22
20 ft.-lbs. @-200F
CO2
DCEP (480)
(480) (27J
@-290C) ER70S-3
82 Ar
1.5% O2 1
DCEP 70,000
58,000 22
20 ft.-lbs. @O0F
CO2
(480)
(480) (27J
@-180C) ER70S-4
85 CO2
1
DCEP 70,000
58,000
22 NOT
REQUIRED (480)
(480)
ER70S-5 CO2
1
DCEP 70,000
58,000 22
NOT REQUIRED (480)
(480) ER70S-6
86 CO2
1
DCEP 70,000
58,000 22
20 ft.-lbs. @-200F
(480)
(480)
(27J @-290C)
ER70S-7 87HP
CO2
1 DCEP
70,000 58,000
22 20
ft.-lbs. @-200F (480)
(480) (27J
@-290C) ER80S-D2
83 or Hi84 CO2
1
DCEP 70,000
58,000
17 20
ft.-lbs. @-200F (480)
(480) (27J
@-290C) ER70S-G
NOT SPEC. NOT
SPEC. 70,000
58,000 22
NOT REQUIRED (480)
(480)
1Ar-CO2
can be used for all wires. *AWS
A5.18-69
