In the AWS classification, R65, what does the 65 stand for?

In the AWS classification, R65, what does the 65 stand for?

• A. 65,000 psi minimum tensile strength
• B. 65% elongation
• C. 65000 psi yield strength
• D. 6.5 inch diameter

Answer: (A)

The number in this AWS designation tells you the weld metal’s minimum tensile strength in thousands of pounds per square inch. So the 65 means 65,000 psi. This is the strength rating you use to match filler metal to the loads your joint will carry. The other interpretations—like elongation percentage, yield strength, or a diameter—aren’t encoded by this part of the AWS classification, which is specifically about the weld metal’s tensile strength.

The number in this AWS designation tells you the weld metal’s minimum tensile strength in thousands of pounds per square inch. So the 65 means 65,000 psi. This is the strength rating you use to match filler metal to the loads your joint will carry. The other interpretations—like elongation percentage, yield strength, or a diameter—aren’t encoded by this part of the AWS classification, which is specifically about the weld metal’s tensile strength.