Molybdenum Wire Tensile Strength & Elongation: A Technical Guide
Two wires of the same diameter and purity can be vastly different on the spool - one easy to bend and snap cleanly, while the other may bend a lot and not break. It almost always depends on temper condition; how much of the dislocation structure of the wire remains from the drawing process, versus how much it has been relieved or recrystallised out by heat treatment. However, the importance of getting this right is overlooked by most buyers, since tensile strength and elongation are inversely proportional and the "best" wire is dependent on the process's requirement. It explains the actual mechanical properties of molybdenum wire, so that you can choose the appropriate temp when purchasing from molybdenum wire manufacturers. Tensile Strength: What Drives It Molybdenum wire's tensile strength comes primarily from cold work — the drawing process that reduces the wire down to its final diameter. As-drawn wire carries a high density of internal dislocations left over fr...