Steel 44Х2НМБР (АБО70В)
Designation
Description
44Х2НМБР steel is used: for the manufacture of rolled plates for the production of various parts of power plant engineering.
Standards
Chemical composition
Fe is the basis.
According to TU 14-1-2012-77 the chemical composition is given for steel 44Х2НМБР-ВД (АБО70В-ВД). Boron is introduced by calculation and chemical analysis is not determined. Deviations in chemical composition - in accordance with GOST 4543, except sulfur, phosphorus and manganese. Deviations in sulfur and phosphorus are allowed, provided that their total content does not exceed 0.020%. Deviations in the content of manganese should be within the range of +0.10 / -0.15%. The residual content of tungsten should not exceed 0.30%. The residual copper content should not exceed 0.25%. A technological addition of vanadium in an amount up to 0.15% is allowed.
According to TU 14-1-2012-77 the chemical composition is given for steel 44Х2НМБР-ВД (АБО70В-ВД). Boron is introduced by calculation and chemical analysis is not determined. Deviations in chemical composition - in accordance with GOST 4543, except sulfur, phosphorus and manganese. Deviations in sulfur and phosphorus are allowed, provided that their total content does not exceed 0.020%. Deviations in the content of manganese should be within the range of +0.10 / -0.15%. The residual content of tungsten should not exceed 0.30%. The residual copper content should not exceed 0.25%. A technological addition of vanadium in an amount up to 0.15% is allowed.