|Designation GOST Cyrillic||3|
|Designation GOST Latin||3|
|By chemical elements||3|
Steel 3 is used: for the manufacture of tires of trucks and shunting locomotives and tenders Railways of 1520 mm (used only by agreement between manufacturer and consumer).
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 Р 52366-2005|
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%. The total content of chromium, nickel and copper should be at least 0.30%. In the finished tires, the maximum deviations in chemical composition are allowed in accordance with the requirements of GOST 380.
|Section, mm||σU, MPa||d5, %||y, %||KCU, kJ/m2||HB, MPa|
|Bandages according to GOST 398-96. Sakazakii with separate heating + Vacation|
Description mechanical marks
|σU||Limit short-term strength|
|d5||Elongation after rupture|
|y||The relative narrowing|
|HB||Brinell hardness number|