Steel 2
A4 steel
Steel 76F
76KhSF steel
Steel 76C (M76C)
78KhSF steel
Steel 90AF (E90AF)
Steel A1 (A0)
A2 steel
A3 steel
Steel 76VT (M76VT)
Steel wheel 1
Steel wheel 2
Steel wheel 3
Steel M75
Steel H50
OS Steel
PT70 steel
T60 steel
Steel 70 (M70)
Steel 2
Steel 3
3Gps steel
Steel 4
Steel 54 (M54)
5Gps steel
Steel 63 (K63)
Steel 68 (M68)
76T steel
Steel 73B (M73B)
Steel 73T (M73T)
Steel 73C (M73C)
Steel 74 (M74)
Steel 74T (M74T)
Steel 74C (M74C)
Steel 76 (M76)
Steel 76B (M76B)
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 2 |
| Designation GOST Latin | 2 |
| Transliteration | 2 |
| The chemical elements | 2 |
Description
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.
Note
Steel bandage.
The steel must be subjected to secondary treatment by blowing nitrogen, argon or vacuum.
Standards
| Name | Code | Standards |
|---|---|---|
| Bandages. Wheels. Axes | 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 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | V | Mo |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 398-96 | 0.57-0.65 | ≤0.04 | ≤0.035 | 0.6-0.9 | - | 0.22-0.45 | - | The rest | - | ≤0.15 | - |
| GOST 5257-98 | 0.57-0.67 | ≤0.04 | ≤0.035 | 0.5-0.9 | - | 0.2-0.45 | - | The rest | - | - | - |
| GOST 398-2010 | 0.57-0.67 | ≤0.02 | ≤0.03 | 0.6-0.9 | ≤0.2 | 0.22-0.45 | ≤0.25 | The rest | ≤0.3 | ≤0.15 | ≤0.08 |
Fe is the basis.
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%.
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%.
Mechanical characteristics
| Section, mm | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa |
|---|---|---|---|---|---|
| Bandages on 398-96 GOST, GOST 398-2010. Quenching with a separate heating + Vacation | |||||
| 930-1110 | ≥10 | ≥14 | ≥2450 | 269-321 | |
| Bandages according to GOST 5257-98. Quenching with a separate heating + Vacation | |||||
| ≥900 | ≥10 | ≥14 | - | ≥250 | |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
