Steel 14Х2Н3МА
Designation
Description
14Х2Н3МА steel is used: for the manufacture in cemented and improved the condition of critical parts, which are requirements of high strength, toughness and wear resistance; parts exposed to high vibration and dynamic loads; paws and cutter drill bits all sizes with air purge, as well as bits from 151 mm and less, borgonovo by hot forming; drill bits with a diameter of 320 mm or more.
Note
Temperature range of use of steel from -70 °C to +450 °C.
Standards
Chemical composition
Fe is the basis.
According to TU 3-26-79 the chemical composition is given for steel grade 14H2N3MA-VD.
According to TU 3-938-79 the chemical composition is given for steel grade 14H2N3MA.
According to TU 3-850-80 the chemical composition is given for steel grade 14H2N3MA. The presence of residual titanium in the steel to 0.030%, tungsten to 0.20% and vanadium to 0.050% is not a defect.
According to TU 3-26-79 the chemical composition is given for steel grade 14H2N3MA-VD.
According to TU 3-938-79 the chemical composition is given for steel grade 14H2N3MA.
According to TU 3-850-80 the chemical composition is given for steel grade 14H2N3MA. The presence of residual titanium in the steel to 0.030%, tungsten to 0.20% and vanadium to 0.050% is not a defect.