Alloy BT23]
Alloy VT8M-1
Alloy VT32
Alloy VT35
Alloy VT4
Alloy VT41
Alloy VT5
Alloy VT5-1
Alloy VT6 (VT6sv.)
Alloy VT6C
Alloy VT6h
Alloy VT8
Alloy VT8-1
Alloy VT3-1
Alloy VT9
OT4 alloy
Alloy OT4-0
Alloy OT4-1
Alloy OT4-2
Alloy PT-1M
Alloy PT-3B
Alloy PT-7M
Alloy SPT-2
Alloy TC5
Alloy TC6
Alloy VT15
Alloy 14
Alloy 19
Alloy 27
Alloy 2B
Alloy 37
Alloy 3M
Alloy 40
Alloy 5B
Alloy AT3
Alloy AT6
Alloy VT14
Alloy VT25U
Alloy VT16
Alloy VT18
Alloy VT18U
Alloy VT2 (VT2sv.)
Alloy VT20
Alloy VT20-1 (VT20-1sv.)
Alloy VT20-2 (VT20-2sv.)
Alloy VT22
Alloy VT22I
Alloy VT23
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ВТ23 |
| Designation GOST Latin | BT23 |
| Transliteration | VT23 |
| The chemical elements | ВTe23 |
Description
Alloy BT23] is used: for the manufacture of kavitatsionnogo products.
Note
High strength alloy widely used. The developed technology of manufacture of stampings and forgings weighing up to 3.5 tons with the strength of over 1100 MPa, processes, WTO and textural hardening for production of ball-cylinders of σin>1300 MPa and pipes of variable section.
Standards
| Name | Code | Standards |
|---|---|---|
| Non-ferrous metals, including rare metals, and their alloys | В51 | OST 1 90013-81, TU 1-5-353-84 |
| Sheets and stripes | В53 | OST 1 90024-94 |
| Bars | В55 | OST 1 90266-86, OST 1 90107-73, OST 1 90006-86 |
Chemical composition
| Standard | C | Cr | Si | Fe | N | Al | V | Ti | Mo | O | Zr | H |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OST 1 90013-81 | ≤0.1 | 0.8-1.4 | ≤0.15 | 0.4-1 | ≤0.05 | 4-6.3 | 4-5 | The rest | 1.5-2.5 | ≤0.15 | ≤0.3 | ≤0.015 |
Ti is the basis.
According to OST 1 90013-81 the total content of other impurities is ≤ 0.30%. A partial replacement of molybdenum by tungsten in an amount not exceeding 0.30% is allowed. The total content of molybdenum and tungsten should not exceed the norms specified in the table for molybdenum. The total content of copper and nickel in an amount not exceeding 0.10% is allowed, including nickel not more than 0.080%. In flat rolled products of alloy VT23 up to 10 mm thick, the aluminum content should be 4.00-5.50%, and in the other types of semi-finished products - 5.20-6.30%.
According to OST 1 90013-81 the total content of other impurities is ≤ 0.30%. A partial replacement of molybdenum by tungsten in an amount not exceeding 0.30% is allowed. The total content of molybdenum and tungsten should not exceed the norms specified in the table for molybdenum. The total content of copper and nickel in an amount not exceeding 0.10% is allowed, including nickel not more than 0.080%. In flat rolled products of alloy VT23 up to 10 mm thick, the aluminum content should be 4.00-5.50%, and in the other types of semi-finished products - 5.20-6.30%.
Mechanical characteristics
| Section, mm | σB, MPa | d5, % | d | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa |
|---|---|---|---|---|---|---|
| Sheet. Quenching + Aging | ||||||
| - | 1450-1600 | 4-6 | - | - | - | - |
| Sheet. Annealing | ||||||
| - | 1100-1200 | 10-13 | - | - | - | 255-270 |
| Plate on OST 1 90024-94 in the delivery condition. Samples heat-treated aged (transverse) | ||||||
| ≤60 | 1130-1280 | - | ≥6 | ≥11 | ≥294 | - |
| ≥100 | 1030-1180 | - | ≥6 | ≥15 | ≥294 | - |
| 60-100 | 1080-1230 | - | ≥6 | ≥13 | ≥294 | - |
| Bars and rods, hot-rolled. Annealing | ||||||
| ≥110 | 1030-1180 | ≥7 | - | ≥24 | ≥294 | 285-388 |
| 65-100 | 1030-1180 | ≥8 | - | ≥25 | ≥294 | 285-388 |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
| d | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
