Steel VSt5ps
Description
Steel VSt5ps
Steel VSt5ps: a brand of steels and alloys. Below is a systematized information on the purpose, chemical composition, types of supplies, substitutes, temperature of critical points, physical, mechanical, technological and casting properties for the grade — Steel VSt5ps.
General information about steel VSt5ps
| Delivery type |
| Long products, including shaped: GOST 2590−71, GOST 2591−71, GOST 19771−74, GOST 19772−74, GOST 8278−83, GOST 8509−72, GOST 8510−72, GOST 8240−72, GOST 8239 -83, GOST 380−71, GOST 535−79. Thick sheet GOST 19903−74. Thin sheet GOST 19903−74. Tape GOST 6009−74. Strip GOST 103−76, GOST 82−70. Wire GOST 2590−71. Forgings and forged billets GOST 8479−70. Pipes GOST 8639−82. |
| Application |
| Details of riveted structures, bolts, nuts, handles, rods, bushings, travel rollers, wedges, trunnions, levers, stops, pins, pins, rods, sprockets, tube grids, flanges and other parts operating in the temperature range from 0 to + 425 ° C; forgings up to 800 mm. |
The chemical composition of steel VSt5ps
| Chemical element |
% |
| Silicon (Si) |
0.05−0.17 |
| Manganese (Mn) |
0.50−0.80 |
| Copper (Cu), no more |
0.30 |
| Arsenic (As), no more |
0.08 |
| Nickel (Ni), no more |
0.30 |
| Sulfur (S), no more |
0.05 |
| Carbon (C) |
0.28−0.37 |
| Phosphorus (P), no more |
0.04 |
| Chromium (Cr), no more |
0.30 |
Mechanical properties of steel VSt5ps
Mechanical properties
| Heat treatment, delivery condition |
Section, mm |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
δ 4 ,% |
| Hot rolled steel |
<20 |
285 |
490−630 |
20 |
|
| Hot rolled steel |
20−40 |
275 |
490−630 |
19 |
|
| Hot rolled steel |
40−100 |
265 |
490−630 |
17 |
|
| Hot rolled steel |
> 100 |
255 |
490−630 |
17 |
|
| Hot rolled sheets |
<2.0 |
|
490−630 |
|
17 |
| Hot rolled sheets |
2.0−3.9 |
|
490−630 |
|
19 |
| Cold rolled sheets |
<2.0 |
|
490−630 |
|
19 |
| Cold rolled sheets |
2.0−3.9 |
|
490−630 |
|
21 |
Mechanical properties at elevated temperatures
| test t, ° C |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
ψ,% |
KCU, J / m 2 |
| 20 |
330 |
535 |
25 |
52 |
64 |
| 100 |
310 |
500 |
20 |
54 |
69 |
| 200 |
305 |
|
19 |
40 |
78 |
| 300 |
215 |
|
22 |
50 |
69 |
| 400 |
185 |
500 |
23 |
64 |
59 |
| 500 |
160 |
365 |
24 |
70 |
|
| 600 |
88 |
195 |
35 |
80 |
|
Mechanical properties depending on the tempering temperature
| vacation t, ° С |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
| Rod with a diameter of 14−16 mm. Hardening 900 ° C, water. Cooling after tempering in the oven |
| 200 |
890 |
1080 |
4 |
| 300 |
780 |
900 |
7 |
| 400 |
690 |
780 |
eleven |
| 500 |
600 |
700 |
fifteen |
| 600 |
530 |
650 |
19 |
Technological properties of steel VSt5ps
| Forging temperature |
| Beginning 1260, end 750. Sections up to 800 mm are cooled in air. |
| Weldability |
| Limited weldable; welding methods: RDS, ADS submerged arc and gas shielded, EShS. Heating and subsequent heat treatment is recommended. KTS without restrictions. |
| Machinability by cutting |
| In the hot-rolled state at HB 158 and σ B = 640 MPa K υ tv.spl. = 1,2, K υ b.st. = 1.2. |
| Tendency to release ability |
| Not inclined. |
| Flock sensitivity |
| Not sensitive. |
Temperature of critical points of steel VSt5ps
| Critical point |
° C |
| Ac1 |
730 |
| Ac3 |
825 |
| Ar3 |
815 |
| Ar1 |
690 |
Physical properties of steel VSt5ps
| Test temperature, ° С |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
| Normal elastic modulus, E, GPa |
198 |
196 |
186 |
175 |
167 |
|
|
|
|
|
| Torsional shear elastic modulus G, GPa |
81 |
80 |
77 |
74 |
71 |
67 |
62 |
|
|
|
