ASTM International recently expanded its A1035 specification to include several steel chemistry compositions. With this new specification, scheduled to be published mid-July, engineers can clearly designate the mechanical properties needed to meet their design and owner requirements by calling for ASTM A1035 CL, CM or CS. MMFX Steel Corporation’s ChrŠ?mX concrete reinforcing steel (rebar) products can now be specified under one ASTM standard.
MMFX provides ChrŠ?mX reinforcing steel products that meet each of the chemistries called for in the newly published A1035 specification with high-strength grades of 100ksi or more. ChrŠ?mX 9000 (formerly MMFX2® concrete reinforcing steels) can be specified as A1035 CS either Grade 100 or 120. This chromium steel provides high corrosion protection for severe corrosive environments caused by seawater, aggressive soils and deicing salts. Designers can meet 100-year service life requirements called for on many infrastructure projects by applying ChrŠ?mX 9000. ChrŠ?mX 4000 (ASTM A1035 CM Grade 100 or 120) offers the same high-strength benefits with a medium level of corrosion resistance for projects requiring only 40 to 60 years of service life. ChrŠ?mX 2000 (A1035 CL Grade 100 or 120) is a low cost product ideal for construction projects in which high-strength designs reduce the amount of steel used, improving constructability, and reducing construction time and costs for the owner.
