Print CHEMICAL COMPOSITION - CARBON STEEL BARE WIRES FIGURE 5
6.4.0.5 6.4.0.5
Tensile ensile strengt strength h requireme requirements nts of the weld weld metal metal produce produced d by the the filler filler metals metals in this this
Glossary
classification classification are shown in Figure 6. Tensile
Yield
Shielding
Strength
Strength
Gas
PSI
PSI
CO2
72,000
60,000
22
*
72,000
60,000
22
AWS Class
Lesson 5 Welding Filler Metals for Stainless Stainless Steels Steels
ER70S-2 ER70S-3 ER70S-4 ER70S-5
Lesson 6 Car bon bon & Low Alloy Alloy Steel Ste el Filler Metals Metals GMAW,GTAW,SAW
ER70S-6 ER70S-7
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ER70S-G
Elongation in 2" 2" - % Min.
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* As agreed upon between supplier and purchaser
Lesson 7 Flux Cored Arc Electrodes Ele ctrodes Carbon Carb on Low Lo w Alloy Steels Steels
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WELD METAL TENSILE REQUIREMENTS FIGURE 6
6.4. 6.4.0. 0.6 6
Alth Althou ough gh Figu Figure re 6 sho shows ws CO 2 as the shielding gas, the specific ation does does not
restrict the use of argon-CO 2 or
Lesson 8 Hardsurfacing Electrodes
Lesson 9 Estimating & Comparing Co mparing Weld Weld Metal Costs
argon-mixtures. argon-mixtures. It states that a filler metal metal classified with CO 2 will also meet
AWS Class
Minimum Impact Properties
ER70S-2
20 ft-lb @ -20° F
specification specification requirements when used with
ER70S-3
20 ft-lb @ 0° F
the above gas mixtures.
ER70S-4
Not Required
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Impa Impact ct prop proper erti ties es,, acc accor ordi ding ng to
the Charpy V-notch test as listed in the specification, specification, are shown in Figure 7.