An iron rod is solid at room temperature because (i) It has definite shape and volume. (1/2) (ii) Its melting point is higher than the room temperature. (1/2) (iii) It has high density.
Stainless steel threaded rod proves, when tested, to be stronger than most Grade 2 steels, but weaker than Grade 5 and Grade 8 stainless steel raw materials that have been hardened. Depending on the ratio of metals in the alloy, the definitive strength of most stainless steel grades will range from about 70 to 220 ksi.