Independent tests show that ChrōmX 9100®, formerly MMFX2, provides twice the strength of conventional steel. It also provides five times more corrosion-resistance than conventional steel and is superior to products such as epoxy-coated rebar (ECR) and galvanized rebar. These advantages result in structures with more than a century of service life, as verified by a number of scientific, third-party studies on life cycle costs.
Stainless steel rebar provides favorable corrosion-resistance properties. However, up front costs that are two to three times higher make it an uneconomical option – even when considering 75-year service life and in comparing life cycle costs, as shown below.
|ChrōmX 9100 Rebar||Black Rebar||Epoxy Coated||Stainless Steel|
|Life Cycle Costs ($/ft2)*||$13.30||$83.90||$92.50||$22.00|
*Total expenditures over 75-year life of decks at Virginia bridge deck percentile corrosion tolerance of 10% Source: VTRC Report 06-R29
ChrōmX 9100 steel rebar meets or exceeds the requirements of ASTM A615 (Grades 75  and 80 ), ASTM A1035 (Grades 100  and 120 ), and AASHTO MP 18 (Grade 100), enabling structural engineers to improve the way buildings, highways, and bridges are designed and built.
Historical strength requirements for Grade 60 conventional steel customarily dictated 60 ksi (420 MPa). ChrōmX 9100, by comparison, establishes today’s steel standard at minimum yield strengths of 100 ksi (690 MPa) and 120 ksi (830 MPa).