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Russian Metals
OT4
Characteristics of the material OT4
| Grade : | OT4 |
| Classification : | Titanium wrought alloy |
| Addition: | The alloy is easily deformed in hot and limited cold states. |
| Application: | for parts operating at temperatures up to 350 °C for 2000 h and up to 300 °C for 30,000 h; good corrosion resistance; pseudo α structure class |
| Foreign analogues: | No Data |
Chemical composition in % of OT4 material
GOST -19807 - 91
| Fe | C | Si | Mn | N | You | Al | Zr | O | H | Impurities |
|---|---|---|---|---|---|---|---|---|---|---|
| up to 0.3 | up to 0.1 | up to 0.12 | 0.8 - 2 | up to 0.05 | 91.83 - 95.4 | 3.5 - 5 | up to 0.3 | up to 0.15 | up to 0.012 | other 0.3 |
Note: Ti is the basis; Ti percentage is approximate.
Technological properties of the OT4 material.
| Weldability: | without restrictions. |
Mechanical properties at T=20 o C of material OT4.
| Assortment | Size | For example. | σin | σT | δ5 | ψ | KCU | Thermal processing |
|---|---|---|---|---|---|---|---|---|
| - | mm | - | MPa | MPa | % | % | kJ/m² | - |
| Annealed sheet, GOST 22178-76 | 685 | 10-20 | ||||||
| Rod, GOST 26492-85 | 635-685 | 8 | 20-25 | 350-400 | Annealing | |||
| Rod, high quality, GOST 26492-85 | 635-885 | 9-11 | 21-30 | 350-400 | Annealing | |||
| Plate, GOST 23755-79 | 11 - 150 | 685-885 | 6-8 | 10-15 |
| Hardness OT4, Annealed alloy | HB 10-1 = 207 - 285 MPa |
Physical properties of the material OT4.
| T | E 10-5 | α 106 | λ | ρ | C | R 109 |
|---|---|---|---|---|---|---|
| Haill | MPa | 1/Grad | W/(m deg) | kg/ m3 | J/(kg deg) | Ohm m |
| 20 | 1.1 | 4550 |
Designations:
Mechanical properties :
σin - Tensile strength [MPa]
σT - Yield stress [MPa]
δ5 - Specific elongation at fracture [%]
ψ - Reduction of area [%]
KCU - Impact strength [kJ/m²]
HB - Brinell hardness [MPa]
Physical properties :
T - Test temperature [Grade]
E - Young modulus [MPa]
α - Coefficient of linear expansion (20° - T) [1/Grade]
λ - Thermal (heat) condition coefficient [Watt/(m·Grade)]
ρ - Density [kg/m³]
C - Specific heat (range 20° - T) [J/(kg·Grade)]
R - Electrical resistance [Ohm·m]
OT4 - Titanium deformable alloy
- OT4 - chemical composition, mechanical, physical and technological properties, density, hardness, application
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