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Alloy VT14

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 ВТ14
Designation GOST Latin BT14
Transliteration VT14
The chemical elements ВTe14

Description

Alloy VT14 used: for the manufacture of semi-finished products (sheets, strips, foils, strips, plates, bars, rods, profiles, tubes, forgings and forged blanks) by the strain, and bars; parts and stamp-welded construction, long operating at temperatures up to +400 °C.

Note

Alloy VT14 refers to high-strength heat-treatable titanium (a+b)-alloys of the martensitic type of system Ti-Al-Mo-V. This alloy well deformed in the hot state. Stamping alloy in the annealed or tempered condition with slight deformations can be performed in a cold state, but the basic operation of the forming can be successfully carried out only at elevated temperatures.
Alloy welded satisfactorily by all types of welding, used for titanium. To restore the ductility of welded joints after welding is necessary to conduct annealing. The alloy is used in annealed and thermally hardened state.

Standards

Name Code Standards
Non-ferrous metals, including rare metals, and their alloys В51 GOST 19807-91, OST 1 90000-70, OST 1 90013-81, TU 1-92-39-76
Pipes steel and connecting parts to them В62 GOST 21945-76, TU 14-3-513-76
Sheets and stripes В53 GOST 22178-76, GOST 23755-79, OST 1 90218-76, OST 1 90024-94, TU 1-5-276-76, TU 1-5-326-76
Bars В55 GOST 26492-85, OST 1 90266-86, OST 1 90173-75, OST 1 90107-73, OST 1 90006-86
Sectional and shaped rolling В52 OST 1 92039-75, OST 1 92051-76, OST 1 92064-77
Pipes from non-ferrous metals and alloys В64 TU 1-5-127-73

Chemical composition

Standard C Si Fe N Al V Ti Mo O Zr H
OST 1 90013-81 ≤0.1 ≤0.15 ≤0.25 ≤0.05 3.5-6.3 0.9-1.9 The rest 2.5-3.8 ≤0.15 ≤0.3 ≤0.015
Ti is the basis.
According to GOST 19807-91 and OST 1 90013-81 the total content of other impurities is ≤ 0.30%. The mass fraction of hydrogen is indicated for ingots. In flat products from the alloy grade VT14 up to 10 mm thick, the mass fraction of aluminum should be 3.5-4.5%, and in the remaining types of semi-finished products - 4.5-6.3%. In the alloy, a partial replacement of molybdenum by tungsten in an amount not exceeding 0.3% is allowed. The total mass fraction of molybdenum and tungsten should not exceed the norms specified in the table for molybdenum. The mass fraction of chromium and manganese should not exceed 0.15% (in total). The mass fraction of copper and nickel should not be more than 0.10% (in total), including nickel not more than 0.08%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % d y, % kJ/m2, кДж/м2 Brinell hardness number, MPa
Rolled sheet after annealing (samples across the direction of rolling)
0.6-5 - 883-1050 ≥8 - - - -
5-10.5 - 834-1050 ≥8 - - - -
Rolled sheet. Quenching + artificial aging (samples across the direction of rolling)
0.6-1.5 - ≥1080 ≥5 - - - -
1.5-5 - ≥1177 ≥6 - - - -
5-7 - ≥1080 ≥4 - - - -
7-10.5 - ≥1099 ≥4 - - - -
Plate in the delivery condition according to GOST 23755-79 (samples transverse)
11-60 - ≥1080 - ≥4 ≥8 - -
11-60 - 835-1030 - ≥7 ≥20 - -
60-100 - 835-1030 - ≥6 ≥14 - -
Plate on OST 1 90024-94 in the delivery condition. Samples heat-treated (transverse)
11-60 - 1080-1230 - ≥4 ≥8 ≥245 -
11-60 - 835-1030 - ≥7 ≥20 ≥343 -
60-100 - 835-1030 - ≥6 ≥18 ≥343 -
Forgings weighing up to 200 kg after annealing
101-150 - 863-1080 ≥7 - ≥20 ≥441 255-341
151-250 - 834-1080 ≥7 - ≥20 ≥392 255-341
100 - 883-1080 ≥10 - ≥35 ≥490 255-341
Bars hot rolled quenched and aged normal-quality according to GOST 26492-85 (longitudinal samples)
10-12 - ≥1080 ≥4 - ≥8 - -
12-100 - - - - - ≥196 -
Bars hot rolled quenched and aged high-quality according to GOST 26492-85 (longitudinal samples)
10-12 - ≥1100 ≥6 - ≥12 - -
12-60 - ≥1100 ≥6 - ≥12 ≥245 -
60-100 - ≥1080 ≥4 - ≥8 ≥196 -
Bars hot rolled autogenie ordinary quality GOST 26492-85 (longitudinal samples)
10-12 - ≥885 ≥8 - ≥22 - -
100-150 - ≥865 ≥6 - ≥15 ≥294 -
12-100 - ≥885 ≥8 - ≥22 ≥294 -
Bars hot rolled autogenie high-quality according to GOST 26492-85 (longitudinal samples)
10-12 - 885-1080 ≥10 - ≥35 - -
100-150 - 865-1080 ≥8 - ≥25 ≥441 -
12-60 - 885-1080 ≥10 - ≥35 ≥490 -
60-100 - 885-1080 ≥9 - ≥30 ≥490 -
Forged square bars and round after annealing
≤150 - 863-1079 ≥8 - ≥23 ≥441 255-341
151-250 - 834-1079 ≥8 - ≥20 ≥392 255-341
- 883-1079 ≥8 - ≥25 ≥441 255-341
The tubular billet. Annealing
15х15 - 883-1080 ≥6 - ≥20 ≥196 -
Pipe the seamless hot-rolled, heat-treated in the delivery condition according to GOST 21945-76
≥784 882-1078 ≥8 - ≥25 ≥390 -

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
d Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) a, 10-6 1/°С С, Дж/(кг · °С)
20 110 4520 837 - -
100 - - 921 8 -
200 - - 1047 82 544
300 - - 1172 85 586
400 - - 1292 88 628
500 - - 1382 89 67
600 - - - 87 712

A description of the physical symbols

Name Description
Е The normal elasticity modulus
r Density
l Coefficient of thermal conductivity
R UD. the resistivity
С Specific heat

Technological properties

Name The value
Weldability without restrictions

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