|Designation GOST Cyrillic||2|
|Designation GOST Latin||2|
|By chemical elements||2|
2 steel is used: for the manufacture of tires freight, passenger and shunting locomotives, motor carriages and diesel trains, subway cars and tenders Railways of 1520 mm; tires for wheeled steam tram cars.
The steel must be subjected to secondary treatment by blowing nitrogen, argon or vacuum.
|Bandages. Wheels. Axis||В41||GOST 398-96, GOST 3225-80, GOST 5000-83, GOST 5257-98, GOST Р 52366-2005, GOST 398-2010, TU 0943-050-01124328-96|
According to GOST 398-96, the content of molybdenum is not more than 0.08%, nickel is not more than 0.25%, chromium is not more than 0.20%, copper is not more than 0.30%. The total content of sulfur and phosphorus should not be more than 0.065%. In the finished tires, the maximum deviations in chemical composition are allowed in accordance with the requirements of GOST 380.
According to GOST 5257-98, the content of nickel is not more than 0.30%, chromium is not more than 0.25%, copper is not more than 0.30%.
According to GOST 398-2010 the total share of sulfur and phosphorus in steel should not exceed 0.040%. In the bandages, the maximum deviations in the chemical composition are permissible: carbon + 0.030 / -0.020, manganese + 0.050 / -0.030, silicon + 0.030 / -0.020, chromium +0.020, vanadium + 0.010%, phosphorus +0.0050% , in the sulfur +0.0050%. The mass fraction of hydrogen in liquid steel should not exceed 0.00020%.
|Section, mm||σU, MPa||d5, %||y, %||KCU, kJ/m2||HB, MPa|
|Bandages on 398-96 GOST, GOST 398-2010. Quenching with a separate heating + Vacation|
|Bandages according to GOST 5257-98. Quenching with a separate heating + Vacation|
Description mechanical marks
|σU||Limit short-term strength|
|d5||Elongation after rupture|
|y||The relative narrowing|
|HB||Brinell hardness number|