5XV2S steel
5XV2S steel
Steel 5XV2S: Handbook of steels and alloys. Below is systematized information on the purpose, chemical composition, types of supply, substitutes, critical point temperature, physical, mechanical, technological and foundry properties for the grade — Steel 5XV2S.
General information about 5XV2S steel
| Grade substitute |
| 6ХВ2С steel. |
| Kind of delivery |
| Sections, including shaped: GOST 5950−73, GOST 2590−71, GOST 2591−71. Calibrated bar GOST 5950−73, GOST 7417−75, GOST 8559−75, GOST 8560−78. Grinded rod and silversilver GOST 5950−73, GOST 14955−77. Strip GOST 4405−75. Forgings and forged blanks GOST 5950−74, GOST 1133−71, GOST 7831−78. |
| Application |
| Blades for cold cutting of metal, thread rolling dies, punches and crimp dies for cold work, dies of complex shape. working with high shock loads. |
Chemical composition of 5XV2S steel
| Chemical element |
% |
| Vanadium (V), not more |
0.30 |
| Tungsten (W) |
1.80−2.30 |
| Silicon (Si) |
0.80−1.10 |
| Manganese (Mn) |
0.15−0.45 |
| Copper (Cu), not more than |
0.30 |
| Molybdenum (Mo), not more than |
0.30 |
| Nickel (Ni), not more than |
0.35 |
| Sulfur (S), not more than |
0.030 |
| Carbon (C) |
0.45−0.55 |
| Phosphorus (P), not more than |
0.030 |
| Chromium (Cr) |
0.90−1.20 |
Mechanical properties of 5XV2C steel
| Mechanical properties |
| Mechanical properties depending on tempering temperature |
| Mechanical properties depending on test temperature |
Mechanical properties
| Heat treatment, delivery condition |
KCU, J/m2 |
HB |
HRCe |
| Annealed or high-tempered bars and strips |
|
<229 |
|
| Samples. Quenched at 910 °C, oil. Tempering 180°C |
|
|
>56 |
| Tempering at 700−750°C. Hardening 860−900°C, Malso. Tempering 200−250°C, air (final heat treatment mode) |
|
|
54−59 |
| Tempering at 700−750°C. Tempering at 860−900°C, Malso. Tempering 430−470°C, air (final heat treatment mode) |
|
|
47−52 |
| Samples from hot-rolled and annealed strip with section of 10−15 mm. Isothermal hardening at 1000 °C, cooling — salt mixture, isothermal temperature 220 °C, holding time 30 min. |
35 |
|
56 |
| Samples of hot rolled and annealed strip with the cross-section of 10−15 mm. Isothermal hardening at 1000 °C, cooling with salt mixture, isothermal temperature 300 °C, holding time 30 min. |
69 |
|
52 |
| Samples of hot rolled and annealed strip with the section of 10−15 mm. Isothermal hardening at 1000 °C, cooling with salt mixture, isothermal temperature 400 °C, holding time 30 min. |
73 |
|
41 |
Mechanical properties depending on tempering temperature
| t tempering temperature, °C |
σ0, 2, MPa |
σB, MPa |
δ5, % |
ψ, % |
KCU, J/m2 |
HRCe |
| Hardening at 880 °C in oil. Tempering temperature 2 h. |
| 200 |
1810 |
1960 |
6 |
13 |
15 |
56 |
| 300 |
1720 |
1830 |
8 |
20 |
18 |
54 |
| 400 |
1530 |
1670 |
9 |
26 |
20 |
52 |
| 500 |
1290 |
1470 |
10 |
30 |
23 |
46 |
| 600 |
1030 |
1180 |
11 |
35 |
34 |
41 |
Mechanical properties as a function of test temperature
| t test temperature,°C |
σ0, 2, MPa |
σB, MPa |
δ5, % |
ψ, % |
KCU, J/m2 |
| A sample 20 mm in diameter. Quenching at 880 °C, oil. Tempering at 450 °C. |
| 200 |
1470 |
1620 |
5 |
15 |
34 |
| 300 |
1420 |
1570 |
5 |
20 |
34 |
| 400 |
1220 |
1320 |
10 |
45 |
24 |
| 500 |
1030 |
1180 |
12 |
50 |
20 |
Technological properties of 5XV2S steel
| Forging temperature |
| Beginning 1180, the end 850. Delayed cooling in the wells. |
| Weldability |
| Not applicable for welded structures. |
| Tendency to temperability |
| Slightly inclined |
| Flockability |
| Sensitive |
Steel 5XV2C critical point temperature
| Critical point |
°С |
| Ac1 |
775 |
| Ac3 |
860 |
| Mn |
295 |
Physical properties of 5XV2C steel
| Test temperature,°C |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
| Electrical resistivity (p, nominal value — m) |
300 |
|
420 |
|
|
690 |
|
|
1080 |
1150 |
| Test temperature,°C |
20−100 |
20−200 |
20−300 |
20−400 |
20−500 |
20−600 |
20−700 |
20−800 |
20−900 |
20−1000 |
| Specific heat capacity (C, J/(kg -°C)) |
462 |
|
462 |
|
|
655 |
|
|
832 |
752 |
