Steel 30Х3МФСА
Designation
Description
30Х3МФСА steel is used: for the production of hot-rolled calibrated steel used for the manufacture of parts for shipbuilding, special and military equipment in the heat-treated and nitride state.
Note
Structural steel high-quality chrome-molybdenum-vanadium. Steel heat resistant up to 500 °C.
Standards
Chemical composition
Fe is the basis.
According to ADU8-TU, the chemical composition is given for steel grade 30X3MFSA. In the steel grade 30X3MFSA-SH, the mass fraction of sulfur is not more than 0.015%, phosphorus - no more than 0.025%, copper - no more than 0.25%. The presence in the steels of 30X3MFSA and 30X3MFSA-III grades of residual titanium mass fraction up to 0.030% and tungsten up to 0.20% is not a defective feature. Permissible deviations from the norms of chemical composition in accordance with GOST 4543.
According to ADU8-TU, the chemical composition is given for steel grade 30X3MFSA. In the steel grade 30X3MFSA-SH, the mass fraction of sulfur is not more than 0.015%, phosphorus - no more than 0.025%, copper - no more than 0.25%. The presence in the steels of 30X3MFSA and 30X3MFSA-III grades of residual titanium mass fraction up to 0.030% and tungsten up to 0.20% is not a defective feature. Permissible deviations from the norms of chemical composition in accordance with GOST 4543.