Steel 18KH12VMBFR (ЭИ993)
Designation
Description
18KH12VMBFR steel is used: for the production of forgings, steam turbine blades, pipes and fasteners for long service life at temperatures up to +620 °C; for the manufacture by cold machining and hot forming fasteners turbines and flange connections, steam pipes and fittings, operating at a steam temperature 500−580 °C.
Note
Martensite steel-ferritic class.
The recommended maximum operating temperature for a very long time +500 °C. the Temperature of beginning of intensive scaling in air +750 °C.
Standards
Chemical composition
Fe is the basis.
According to TU 14-1-552-72, the chemical composition is given for steel grade 18Х12ВМБФР-Ш (ЭИ993-Ш).
According to TU 14-1-552-72, the chemical composition is given for steel grade 18Х12ВМБФР-Ш (ЭИ993-Ш).