A36 (HR) Bars designed for use in structural applications. Minimum mechanical properties of 36 KSI yield strength and 58 to 80 KSI tensile strength. Conforms to ASTM A36.

1018, 1020 (HR, CF) A low carbon steel with a medium manganese content. Has good case hardening properties, fair machinability. Readily brazed and welded. Suitable for shafting and for applications that do not require the greater strength of high carbon and alloy steels. Conforms to ASTM A108.

1045 (HR, CF) Medium carbon steels used when greater strength and hardness is desired in the as-rolled condition. Can be hammer forged and responds to heat treatment. Suitable for flame and induction hardening. Uses include gears, shafts, axles, bolts and studs, machine parts, etc.

1144 (HR, CF) Similar to 1141 with slightly higher carbon and sulphur content resulting in superior machinability and improved response to heat treating. Often used for induction hardened parts requiring 55 RC Surface.

12L14 (CD, CF) is a Standard Resulfurized And Rephosphorized grade Carbon Steel. It is commonly called AISI 12L14 Lead steel. It is composed of (in weight percentage) 0.15%(max) Carbon (C), 0.85-1.15% Manganese (Mn), 0.04-0.09% Phosphorus (P), 0.26-0.35% Sulfur (S), 0.15-0.35% Lead (Pb), and the base metal Iron (Fe). Other designations of AISI 12L14 carbon steel include UNS G12144 and AISI 12L14.

4140 (HR, CF) is a Standard grade Alloy Steel. It is commonly called AISI 4140 Chromium-molybdenum steel. It is composed of (in weight percentage) 0.38-0.43% Carbon (C), 0.75-1.00% Manganese (Mn), 0.035%(max) Phosphorus (P), 0.04%(max) Sulfur (S), 0.15-0.30% Silicon (Si), 0.80-1.10% Chromium (Cr), 0.15-0.25% Molybdenum (Mo), and the base metal Iron (Fe). Other designations of AISI 4140 alloy steel include UNS G41400 and AISI 4140.