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Russian Metals
OT4-1
Characteristics of the material OT4-1
| Grade : | OT4-1 |
| Classification : | Titanium wrought alloy |
| Application: | thin-walled parts of complex configuration, operating for a long time at a temperature of 300°C (3000 h) and 350°C (2000 h); pseudo α structure class; Disadvantages - relatively low strength; very high tendency to hydrogen embrittlement |
| Foreign analogues: | Known |
Chemical composition in % of OT4-1 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 | 0.7 - 2 | up to 0.05 | 94.33 - 97.5 | 1.5 - 2.5 | 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 OT4-1 material.
| Weldability: | without restrictions. |
Mechanical properties at T=20 o C of material OT4-1.
| Assortment | Size | For example. | σin | σT | δ5 | ψ | KCU | Thermal processing |
|---|---|---|---|---|---|---|---|---|
| - | mm | - | MPa | MPa | % | % | kJ/m² | - |
| Annealed sheet, GOST 22178-76 | 590 | 13-25 | ||||||
| Rod, GOST 26492-85 | Ø 10 - 150 | 540 | 10-12 | 21-30 | 400-450 | Annealing | ||
| Rod, high quality, GOST 26492-85 | 540-735 | 13-15 | 24-35 | 400-450 | Annealing | |||
| Plate, GOST 23755-79 | 11 - 150 | 590-735 | 8-10 | 14-18 |
| Hardness OT4-1, Sheet | HB 10-1 = 197 - 255 MPa |
Physical properties of the material OT4-1.
| 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 | 9.63 | 4550 | 1010 | ||
| 100 | 8 | 10.47 | ||||
| 200 | 8 | 11.3 | 0.565 | |||
| 300 | 9.1 | 12.14 | 0.628 | |||
| 400 | 9.6 | 14.24 | 0.67 | |||
| 500 | 9.7 | 14.65 | 0.754 | |||
| 600 | 9.8 | 16.32 |
Foreign analogues of the material OT4-1
Attention! Both exact and closest analogues are indicated.
| Japan |
|---|
| JIS |
| ST-A90 |
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]
OT4-1 - Titanium deformable alloy
- OT4-1 - chemical composition, mechanical, physical and technological properties, density, hardness, application
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