TRUSTED QUALITY. UNDENIABLE PERFORMANCE. INDUSTRY HERITAGE.

ER70S-3

AWS A5.18 ER70S-3
ASME SFA 5.18 ER70S-3

ER70S-3 is a silicon and manganese deoxidized wire used for mild and low alloy steel general purpose fabrication. A well balanced silicon and
manganese content permits its use with CO2, Argon-Oxygen mixtures, or mixtures of the two. This wire may be used for short-circuiting arc (dip-transfer), buried arc, as well as spray transfer arc processes. ER70S-3 produces quality welds with rimmed steels, better welds on semi-killed
steels and excellent welds on killed steels. It yields an almost slag-free deposit which does not require cleaning for many applications thereby
providing low plate preparation costs, good bead appearance and welder satisfaction.

Applications:

Automobile frames, earthmoving and farm equipment, sheet metal, ships and barges, railcars, trailers, ornamental iron, metal furniture, storage bins and general fabrications.

TYPICAL WIRE CHEMISTRY (%)

-

ER70S-3

AWS Spec

C

0.100

0.06 - 0.15

Mn

1.000

0.90-1.40

Si

0.550

0.45-0.75

P

0.012

0.025 max

S

0.012

0.035 max

Typical mechanical properties of weld metal (C02 shielding gas)

-

AWS Spec

ER70S-3

Yield strength (psi)

60,000 min

62,400

Ultimate tensile strength (psi)

72,000 min

75,500

Elongation in 2" (%)

22 min

30.7

Charpy V-notch at 0 F (ft. lbs)

20 min

66

Reduction of area

-

59

Average Brinell Hardness

-

130

WA Part No. Description UPC Code
TC 70S-3 04 ER70S-3 .030 X 2 LB SPOOL 034496904030
TC 70S-3 05 ER70S-3 .030 X 11 LB SPOOL 034496904047
TC 70S-3 06 ER70S-3 .030 X 33 LB SPOOL 034496904054
TC 70S-3 07 ER70S-3 .035 X 2 LB SPOOL 034496904092
TC 70S-3 08 ER70S-3 .035 X 11 LB SPOOL 034496963822
TC 70S-3 093 ER70S-3 .035 X 33 LB SPOOL 034496950617
TC 70S-3 10 ER70S-3 .035 X 45 LB SPOOL 034496904153
TC 70S-3 104 ER70S-3 .035 X 44 LB SPOOL 034496950709
TC 70S-3 11 ER70S-3 .035 X 60 LB COIL 034496904191
TC 70S-3 125 ER70S-3 .035 X 550 LB PAIL PACK 034496963839
TC 70S-3 15 ER70S-3 .045 X 2 LB SPOOL 034496904245
TC 70S-3 16 ER70S-3 .045 X 11 LB SPOOL 034496904252
TC 70S-3 17 ER70S-3 .045 X 30 LB SPOOL 034496904269
TC 70S-3 173 ER70S-3 .045 X 33 LB SPOOL 034496950440
TC 70S-3 18 ER70S-3 .045 X 44 LB SPOOL 034496904306
TC 70S-3 222 ER70S-3 .045 X 550 LB DRUM 034496963846
TC 70S-3 224 ER70S-3 .052 X 44 LB SPOOL 034496950662