What does the 480 refer to in the filler rod designation ER480S-2?

What does the 480 refer to in the filler rod designation ER480S-2?

• A. weld specification
• B. filler alloy
• C. weld classification
• D. tensile Strength

Answer: (D)

In AWS filler-metal designations, the numeric portion is the nominal tensile strength of the filler metal. For ER480S-2, the 480 refers to a minimum tensile strength of 480 MPa (about 70 ksi). This tells you how strong the deposited weld metal is expected to be. The rest of the code (S indicating stainless and -2 indicating all-position welding) describes other properties, but the 480 specifically denotes the strength rating, not the filler’s alloy name, a weld specification, or a classification.

In AWS filler-metal designations, the numeric portion is the nominal tensile strength of the filler metal. For ER480S-2, the 480 refers to a minimum tensile strength of 480 MPa (about 70 ksi). This tells you how strong the deposited weld metal is expected to be. The rest of the code (S indicating stainless and -2 indicating all-position welding) describes other properties, but the 480 specifically denotes the strength rating, not the filler’s alloy name, a weld specification, or a classification.