Steel 02Х25Н22АМ2 (ЧС108)
|Designation GOST Cyrillic||02Х25Н22АМ2|
|Designation GOST Latin||02X25H22AM2|
|By chemical elements||02Cr25Н22NMo2|
|Designation GOST Cyrillic||ЧС108|
|Designation GOST Latin||ChC108|
|By chemical elements||ZrС108|
02Х25Н22АМ2 steel is used: for the manufacture of welded equipment operating in most severe conditions for the synthesis of urea at temperatures of from -70 °C to +200 °C at high pressure.
The austenitic steel. 02Х25Н22АМ2 steel is smelted in plasma furnaces with high purity charge materials.
Steel 02Х25Н22АМ2 can replace steel Х17Н14М2Т and Х17Н14М3Т in the manufacture of equipment used in sulfuric and nitric acid environments and serviceregistered environments that cause pitting corrosion.
|Bars and shapes||В32||TU 14-1-5072-91|
|Sheets and strips||В33||TU 14-1-5203-2005|
|Blanks. Of the workpiece. Slabs||В31||TU 14-134-277-91|
|Steel pipes and fittings to them||В62||TU 14-159-252-95, TU 14-3-1797-91|
According to TU 14-1-5203-2005, the chemical composition is given for steel grades 02X25N22AM2-VI and 02X25N22AM2-PT of vacuum arc and plasma smelting in ceramic crucibles. The estimated mass fraction of modifiers and deoxidizers (cerium, calcium, magnesium) is established by the supplier's technological instructions and chemical analysis is not determined. Mass fraction of the residual elements in accordance with GOST 5632. Niobium is introduced into the steel in an amount of 0.050% by calculation and chemical analysis is not determined.
According to TU 14-1-5072-91, TU 14-159-252-95, TU 14-3-1797-91 the chemical composition is given for steel grade 02X25N22AM2-FT.
|Section, mm||sT|s0,2, MPa||σU, MPa||d5, %|
|Plate y to hire on the other 14-1-5203-2005. Heating to 1110-1130 °C, exposure time 2-3 min/mm of thickness, quenching in water or under water shower|
|Seamless cold-worked tubes in the delivery condition on the other 14-3-1797-91|
Description mechanical marks
|sT|s0,2||Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%|
|σU||Limit short-term strength|
|d5||Elongation after rupture|