Steel 08G2DNFL
Designation
Description
08G2DNFL steel is used: for the manufacture of castings of large body parts; the upper parts of the frames of the crankcases, and beds of bearings, castings excavators heavy-duty and other sariaydin details high tensile strength; a variety of large parts for shipbuilding section up to 850 mm.
Note
Cold-resistant, dispersion-hardening steel of pearlitic class.
Standards
Chemical composition
Fe is the basis.
According to GOST 21357-87, the mass fraction of rare-earth metals (REM-yttrium, cerium, etc.) in steel should be in the range of 0.02-0.05%.
According to OST 5R.9285-95, the content of chromium up to 0.50% and molybdenum up to 0.12% is not a defect sign provided that the requirements of the standard are observed and if there are no special instructions in the technical conditions of the order or drawing. Vanadium is introduced by calculation.
In steel smelted in an open-hearth furnace, the carbon content is allowed not more than 0.12%, the content of sulfur and phosphorus is not more than 0.035% of each.
According to GOST 21357-87, the mass fraction of rare-earth metals (REM-yttrium, cerium, etc.) in steel should be in the range of 0.02-0.05%.
According to OST 5R.9285-95, the content of chromium up to 0.50% and molybdenum up to 0.12% is not a defect sign provided that the requirements of the standard are observed and if there are no special instructions in the technical conditions of the order or drawing. Vanadium is introduced by calculation.
In steel smelted in an open-hearth furnace, the carbon content is allowed not more than 0.12%, the content of sulfur and phosphorus is not more than 0.035% of each.