CEMP-E
TI 809-26
1 March 2000
Table C-12. AWS A5.18 Carbon Steel Electrodes for GMAW
[480 MPa (70 ksi) only]
[480
Electrode
Testing Shielding
Polarity
CVN Toughness
Gasd
ER70S-2
CO2
DCEP
27 J @ -29oC
(20 ft-lbf @ -20oF)
ER70S-3
CO2
DCEP
27 J @ -18oC
(20 ft-lbf @ 0oF)
ER70S-4
CO2
DCEP
not required
ER70S-5
CO2
DCEP
not required
ER70S-6
CO2
DCEP
27 J @ -29oC
(20 ft-lbf @ -20oF)
ER70S-7
CO2
DCEP
27 J @ -29oC
(20 ft-lbf @ -20oF)
ER70S-G
as agreed
as agreed
E70C-3C
CO2
DCEP
27 J @ -18oC
(20 ft-lbf @ 0oF)
E70C-3M
75-80% Ar, balance
DCEP
27 J @ -18oC
CO2
(20 ft-lbf @ 0oF)
E70C-6C
CO2
DCEP
27 J @ -29oC
(20 ft-lbf @ -20oF)
E70C-6M
75-80% Ar, balance
DCEP
27 J @ -29oC
CO2
(20 ft-lbf @ -20oF)
E70C-G(X)
as agreed
as agreed
- Electrodes classified using the shielding gas listed shall not be used with any
d
other shielding gas mixture without first consulting the manufacturer.
Note - E70C-GS(X) electrode is limited to single pass applications, and is not
prequalified.
Note - All above electrodes optionally available as H16, H8, and H4 for diffusible
hydrogen requirements.
C-20
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