|
|
Shielding |
Tensile Strength minc,d |
Yield Strength minc,d |
%Elongation |
|
|
AWS A5.18 |
Gasb |
ksi |
MPa |
ksi |
MPa |
min |
Impact Strength min |
| ER70S-2 |
CO2 |
72 |
500 |
60 |
420 |
22 |
20 ft-lb at -20 F (27 J at -29 C) |
| ER70S-3 |
CO2 |
72 |
500 |
60 |
420 |
22 |
20 ft-lb at 0 F (27 J at -18 C) |
| ER70S-4 |
CO2 |
72 |
500 |
60 |
420 |
22 |
Not required |
| ER70S-5 |
CO2 |
72 |
500 |
60 |
420 |
22 |
Not required |
| ER70S-6 |
CO2 |
72 |
500 |
60 |
420 |
22 |
20 ft-lb at -20 F (27 J at -29 C) |
| ER70S-7 |
CO2 |
72 |
500 |
60 |
420 |
22 |
20 ft-lb at -20 F (27 J at -29 C) |
| ER70S-G |
e |
72 |
500 |
60 |
420 |
22 |
e |
| a.
As welded mechanical properties, see AWS A5.18 for more details. |
| b.
CO2 = carbon dioxide shielding gas. The use of CO2 for
classification purposes shall not be construed to restrict the use of
Argon-CO2 or |
| argon-O2
shielding gas mixtures. A filler metal classified with CO2
will also meet the requirement of this specification when used with Argon- |
| CO2
or Argon-O2 mixtures. |
| c.
Mechanical Properties as determined from all-welded-metal tension test
specimen. |
| d.
For each increase of one percentage point in elongation over the minimum,
the tensile strength, or the yield strength, or both may decrease |
| 1000
psi (0 MPa) to a minimum of 70,000 psi (480 MPa) for the tensile strength
and 58,000 psi (400 MPa) for the yield strength. |
| e.
As agreed between supplier and purchaser. |