6XV2S steel
6ХВ2С steel
Steel 6XV2S: Handbook of steels and alloys. Below is systematized information on the purpose, chemical composition, types of supply, substitutes, critical point temperatures, physical, mechanical, technological and foundry properties for the grade — Steel 6XV2S.
General information about 6XV2S steel
| Grade substitute |
| 6Х3FS steel |
| Delivery type |
| Steel 6hv2S strips, bars, 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. Forged 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 6XV2S steel
| Chemical element |
% |
| Tungsten (W) |
2.20−2.70 |
| Silicon (Si) |
0.50−0.80 |
| Manganese (Mn) |
0.15−0.40 |
| 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) |
0.55−0.65 |
| Phosphorus (P), not more than |
0.030 |
| Chromium (Cr) |
1.00−1.30 |
Mechanical properties of 6XV2S steel
Mechanical properties
| Heat treatment, delivery condition |
Section, mm |
σB, MPa |
δ5, % |
ψ, % |
KCU, J/m2 |
HRCe |
| Knives for cold cutting of metal. Loading at 800 °C, heating at 100 deg/h up to 970 °C, holding for 40 min, oil. Tempering 250 °C, 12 h. |
<45 |
2240 |
5 |
15 |
29 |
59−61 |
| Samples from forged and annealed billets. Isothermal hardening 980−1000°C, cooling with molten salts, isothermal temperature 250 °C, holding time 30 min. |
20−25 |
2270 |
|
|
30 |
57 |
| Samples from forged and annealed billets. Isothermal hardening 980−1000°C, cooling with molten salts, isothermal temperature 275 °C, holding time 30 min. |
20−25 |
2170 |
|
|
34 |
56 |
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 |
1910 |
2100 |
2 |
10 |
98 |
62 |
| 300 |
1840 |
1910 |
4 |
13 |
20 |
57 |
| 400 |
1640 |
1750 |
6 |
16 |
21 |
53 |
| 500 |
1550 |
1590 |
8 |
20 |
24 |
47 |
| 600 |
1300 |
1400 |
10 |
30 |
28 |
45 |
Mechanical properties as a function of test temperature
| t test temperature,°C |
σ0, 2, MPa |
σB, MPa |
δ5, % |
ψ, % |
KCU, J/m2 |
| Hardening at 880 °C. Tempering at 450 °C, 2 h. |
| 20 |
1680 |
1770 |
7 |
18 |
26 |
| 300 |
1410 |
1630 |
8 |
10 |
27 |
| 400 |
1250 |
1390 |
11 |
48 |
24 |
| 450 |
1080 |
1230 |
13 |
53 |
23 |
Technological properties of 6XV2S steel
| Forging temperature |
| Beginning 1180, end 850. Delayed cooling in the wells. |
| Weldability |
| Not applicable for welded structures. |
| Tendency to temperability |
| inclined |
| Flockensitive |
| susceptible |
6XV2C steel critical point temperature
| Critical point |
°С |
| Ac1 |
775 |
| Ac3 |
810 |
| Mn |
280 |
6XV2S steel hardness
| Delivery condition, heat treatment regime |
HRCe surface |
HB |
| Rings and strips annealed or high-temperatured |
|
269 |
| Samples. Hardened 860−900 C, oil |
St. 58 |
|
| Heating at 700−750 C. Tempering 860−900 С, oil. Tempering 200−250 С, air (final heat treatment mode) |
54−59 |
|
| Heating at 700−750 С. Tempering at 860−900 C, oil. Tempering at 430−470°C, air (final heat treatment mode) |
47−52 |
|
