CEMP-E
TI 809-26
1 March 2000
Table C-1. AWS A5.1 Classification System for Carbon Steel Electrodes for SMAW
Table
E XX YY M - 1 HZ R
E
Electrode
XX
Minimum tensile strength in units of 1 ksi (7 MPa)
60 = 60 ksi (420 MPa)
70 = 70 ksi (480 MPa)
Y
Generally, welding positions permitted for use, but may be additionally limited by
electrode diameter and class
1 = all positions (F, H, V, OH)
2 = F, H-fillets
4 = F, H, V-down, OH
Y
Type of covering
0 = high cellulose sodium (E6010)
0 = high iron oxide (E6020)
1 = high cellulose potassium
2 = high titania sodium
3 = high titania potassium
4 = iron powder, titania
5 = low hydrogen sodium
6 = low hydrogen potassium
7 = high iron oxide, iron powder
8 = low hydrogen potassium, iron powder (except E7018M)
9 = iron oxide titania potassium
M
If present, meets special Military specifications, and covering is low hydrogen, iron
powder
-1
If present, indicates improved notch toughness (see AWS A5.1, Table 3)
for E7016-1, average CVN of 27 J @ -46oC ( 20 ft-lbf @ -50oF)
for E7018-1, average CVN of 27 J @ -46oC ( 20 ft-lbf @ -50oF)
for E7024-1, average CVN of 27 J @ -18oC ( 20 ft-lbf @ -0oF)
HZ
Optional supplemental diffusible hydrogen designator
H16 = maximum 16 mL / 100 g deposited weld metal
H8 = maximum 8 mL / 100 g deposited weld metal
H4 = maximum 4 mL / 100 g deposited weld metal
(note: E7018M meets H4 requirements, but the H4 designation is not used)
R
If present, indicates electrode has lower moisture content and meets absorbed
moisture test requirements
(note: E7018M must meet more stringent requirements, but the R designation is
not used)
C-4
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