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ER70S-3


Alloy Type:

ER70S3 is a general purpose MIG wire suitable for many carbon steel welding applications.  It is a silicon and manganese deoxidized wire making it excellent for general fabrication.  This product requires a shielding gas.

 

Typical Applications:  general fabrication, metal furniture, sheet metal, ornamental iron fabrication, farm equipment

 

AWS Class: ER70S3 Certification:     AWS A5.18/A5.18M:2005
Alloy:  ER70S3 ASME SFA A5.18

 

Welding Position:    F, V, OH, H Current:

MIG-DCEP

TIG-DCEN

 

Tensile Strength, kpsi: 70
Yield Strength, kpsi: 58
Elongation in 2”%: 22

 

Typical Wire Chemistry as per AWS A5.18 (single values are maximum)

C Mn Si P S Ni Cr Mo V Cu
0.06-0.15 0.90-1.40 0.45-0.75 0.025 0.035 0.15 0.15 0.15 0.03 0.50
Typical Welding Parameters
Diameter Process Volt Amps Shielding Gas
in (mm)
 .035  (0.9) GMAW  28-32 165-200 Spray Transfer 98% Argon+2% Oxygen or 75% Argon+25% CO2
 .045  (1.2) GMAW  30-34 180-220 Spray Transfer 98% Argon+2% Oxygen or 75% Argon+25% CO2
 1/16  (1.6) GMAW  30-34 230-260 Spray Transfer 98% Argon+2% Oxygen or 75% Argon+25% CO2
 .035  (0.9) GMAW  22-25 100-140  Short Circuiting Transfer 100% COor 75% Argon +25% CO2
 .045  (1.2) GMAW  23-26 120-150 Short Circuiting Transfer 100% COor 75% Argon +25% CO
 1/16  (1.6) GMAW  23-26 160-200  Short Circuiting Transfer 100% COor 75% Argon +25% CO
 1/16  (1.6) GTAW  12-15 100-125  100% Argon
 3/32  (2.4) GTAW  15-20 125-175 100% Argon
 1/8  (3.2) GTAW  15-20 175-250 100% Argon

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