Steel 76ВТ (М76ВТ)
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 | 76ВТ |
| Designation GOST Latin | 76BT |
| Transliteration | 76VT |
| The chemical elements | 76WTi |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | М76ВТ |
| Designation GOST Latin | M76BT |
| Transliteration | M76VT |
| The chemical elements | Mo76WTi |
Description
76ВТ steel is used: for the manufacture of railway rails R65 and R75 types.
Note
М76ВТ — steel open-hearth rail with titanium and vanadium.
Standards
| Name | Code | Standards |
|---|---|---|
| Rails. Lining. Lining. Crutches | В42 | GOST 8161-75, GOST 16210-77, GOST 18267-82, GOST 24182-80 |
Chemical composition
| Standard | C | S | P | Mn | Si | Fe | V | Ti |
|---|---|---|---|---|---|---|---|---|
| GOST 24182-80 | 0.71-0.82 | ≤0.045 | ≤0.035 | 0.75-1.05 | 0.18-0.4 | The rest | 0.01-0.02 | 0.005-0.025 |
Fe is the basis.
In rails made of Kerch ores, the content of phosphorus is not more than 0.040%, sulfur is not more than 0.050%, arsenic is not more than 0.15%.
The rails of group I must be made of calm open-hearth steel, deoxidized in the ladle by complex deoxidizers without the use of aluminum or other deoxidizers, which form harmful non-metallic inclusions in steel.
In rails made of Kerch ores, the content of phosphorus is not more than 0.040%, sulfur is not more than 0.050%, arsenic is not more than 0.15%.
The rails of group I must be made of calm open-hearth steel, deoxidized in the ladle by complex deoxidizers without the use of aluminum or other deoxidizers, which form harmful non-metallic inclusions in steel.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa |
|---|---|---|---|---|---|---|
| The mechanical properties of rails type R65 and R75 GOST 18267-82. Bulk quenching in oil + Furnace vacation | ||||||
| ≥794 | ≥1176 | ≥6 | ≥25 | ≥245 | 341-388 | |
| Mechanical properties of steel for rails type R65 and R75 GOST 24182-80 on delivery | ||||||
| - | ≥900 | ≥4 | - | - | - | |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
