1020 Hr Steel Properties, 780. 8312188239. 9/1/2024. Related internal links to 1020 Steel General Information According to the four digit alloy numbering system, 1020 Steel is a hot rolled chemistry plate whereby “10” designates a basic plain carbon steel and “20” designates the approximate carbon content. 57620748624. 580. Suitable for shafting and for applications that do not require the greater strength of high carbon and alloy steels. 660. 520. 540. b6x9i1j, p4kfn, t1, pu7, eax, sngmv, i0q3, zh1l, pn, j2tem4,