4XV2S steel
4XV2S steel
Steel 4XV2S: 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 4XV2S.
General information about 4XV2S steel
| Substitute for grades |
| Steel grades: 4Х5В2FS, 3Х2В8Ф, 4Х8В2, 4Х3В8М, 4Х3В2М2. |
| 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. Forged and forged blanks GOST 5950−74, GOST 1133−71, GOST 7831−78. |
| Application |
| Pneumatic tools: chisels, crimping, cutting and trimming dies of complex shape working with high shock loads. |
Chemical composition of 4XV2S steel
| Chemical element |
% |
| Tungsten (W) |
2.00−2.50 |
| Silicon (Si) |
0.60−0.90 |
| Manganese (Mn) |
0.15−0.40 |
| Copper (Cu), not more than |
0.30 |
| Nickel (Ni), not more than |
0.35 |
| Sulfur (S), not more than |
0.030 |
| Carbon (C) |
0.35−0.45 |
| Phosphorus (P), not more than |
0.030 |
| Chromium (Cr) |
1.00−1.30 |
Mechanical properties of 4XV2C steel
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 8h. |
| 200 |
1700 |
1910 |
5 |
35 |
23 |
55 |
| 300 |
1630 |
1760 |
8 |
36 |
22 |
52 |
| 400 |
1450 |
1620 |
9 |
37 |
29 |
50 |
| 500 |
1260 |
1370 |
10 |
40 |
34 |
42 |
| 600 |
1140 |
1180 |
11 |
48 |
41 |
39 |
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 in oil. Tempering at 430 °C, 2 h. |
| 20 |
1300 |
1470 |
8 |
35 |
29 |
| 200 |
1320 |
1500 |
10 |
47 |
44 |
| 300 |
1340 |
|
12 |
49 |
41 |
| 400 |
1250 |
1370 |
13 |
60 |
39 |
| 500 |
1090 |
1170 |
13 |
60 |
42 |
| 600 |
590 |
590 |
20 |
80 |
88 |
Technological properties of 4XV2S steel
| Forging temperature |
| Beginning 1180, end 850. Delayed cooling in the wells. |
| Weldability |
| Not applicable for welded structures. |
| Tendency to temperability |
| is not prone to |
| Flockability |
| susceptible |
Steel 4XV2C critical point temperature
| Critical point |
°С |
| Ac1 |
780 |
| Ac3 |
840 |
| Mn |
315 |
Steel hardness 4XV2S
| Delivery condition, heat treatment regime |
HRCe surface |
HB |
| Rings and strips annealed or high-temperatured |
|
229 |
| Samples. Hardened 860−900 C, oil. |
St 54 |
|
| Annealing 800−820 C, cooling 50 deg/h to 600 C, air |
|
229 |
| Annealing 700−750 C. Tempering 860−900 C, oil. Tempering 200−250 C, 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 |
|
