AR400 Carbon Steel Technical Data

Carbon: 0.12 / 0.16 Manganese: 1.55 max. Phosphorus: .025 max. Sulphur: .005 max. Chromium: .55 Nickel: 1.00 Molybdenum: .55 Silicon: .35 / .55 Vanadium: -- Boron: .0005 / .005 Surface Brinell Hardness: 360/444