### Possible Answer

Head Markings: Grade or Class: Material: Nominal Size Range (Inches) Mechanical Properties: Proof Load (psi) Minimum Yield Strength (psi) Minimum Tensile Strength (psi) - read more

Head Marking Grade and Material Nominal Size Range (inches) Mechanical Properties ; Proof Load (psi) Min. Yield Strength (psi) Min. Tensile Strength (psi) - read more

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