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This is incorrect. Both the WIT and formula sheet are wrong. If exam taker follows the AWS defined formula, then they will be calculating API ultimate tensile strength instead of AWS\ASME ultimate tensile strength. You have to look at the WIT text and formula sheet to see the errors.
The minimum allowable tensile strength, if AWS D1.2, B2.1, or ASME Section IX are the governing documents, is 24 ksi. The failure is typically in the HAZ adjacent to the toe of the weld. The laboratory most likely machined the samples to produce a rectangular cross section.
When steel is designated 60KSI or any other number, that refers to the yield strength, not the ultimate strength, which is higher. My example is 0.06 (60%) of the yield strength, not the ultimate.
For procedure qualification, tensile testing will be carried out to find out ultimate tensile strength, yield strength and % elonagation as well. Why not this % elongation check is sufficient? Is any there any corelation between the % elongation values checked by tensile testing or bend testing? Can they be corelated?
SS400 (e.g., SS41) is used by JIS and KS (Korean Standard) to designate a carbon steel product similar in nature to that of ASTM A-36. However, there are significant differences in shape material thickness (e.g., Metric sizes are used), shape sizes and profiles (e.g., Roll I and H beams do not have the standard "American" taper) and yield strengths. Chemical analysis differs slightly.
The difference between the two is, for most materials, a work hardening process. Once a material yields it gets stronger. If you've seen stress strain curves this explains why the graph continues to climb once the material yields. Different terminology, but the same meaning. The minimum specified yield strength and the minimum specified tensile ...
New poster here. I'm looking for information on heat affected zone when welding AL6061 T6 parts. I understand that the heat affected zone (HAZ) has lower tensile properties (yield/ultimate), but need to know by how much. I'm hearing different opinions on properties in the HAZ: 1. 40% below original T6 post yield behavior 2. Just like a Al6061 T4 3. All the way down to O temper anealed ...
The base metal in the other hand is tested and ultimate tensile strength, yield point, and ductility are typically determined as part of the testing regiment. As you noted, the yield point is used as the basis of design calculations for the base metal, but tensile strength is used for sizing the weld. Best regards - Al.
Be careful when calculating the strength of the specimen. Read the question carefully to determine whether you are calculating tensile strength (API 1104) or ultimate tensile strength (AWS, ASME, and the rest of the civilized world).
And surely you do not suggest that all welds are x-ray inspected. Calculations of weld strength use only a fraction of the strength of the metal. Steels is shear yield at 57% of their tensile strength, commonly. The allowable is much less then that by code standards because of the vagaries of welding processes.