Steel Vst4ps
Description
Steel Vst4ps
Steel Vst4ps: 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 Vst4ps.
General information about steel Vst4ps
| Substitute brand |
| steel VSt4sp |
| Delivery type |
| Long products, including shaped: GOST 2590−71, GOST 2591−71, GOST 2879−69, GOST 8509−86, GOST 8510−86, GOST 8239−72, GOST 8240−72, GOST 535−79, GOST 380 -71. Strip GOST 103−76, GOST 535−79. Pipes GOST 10704−91, GOST 10705−80. |
| Application |
| Welded, riveted, bolted structures of increased strength in the form of section, shaped and sheet metal, as well as for lightly loaded parts such as shafts, axles, bushings, etc. |
Chemical composition of steel Vst4ps
| Chemical element |
% |
| Silicon (Si) |
0.05−0.17 |
| Manganese (Mn) |
0.40−0.70 |
| 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) |
0.18−0.27 |
| Phosphorus (P), no more |
0.04 |
| Chromium (Cr), no more |
0.30 |
Mechanical properties of steel Vst4ps
Mechanical properties
| Heat treatment, delivery condition |
Section, mm |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
δ 4 ,% |
| Hot rolled steel |
<20 |
265 |
410−530 |
24 |
|
| Hot rolled steel |
20−40 |
255 |
410−530 |
23 |
|
| Hot rolled steel |
40−100 |
245 |
410−530 |
21 |
|
| Hot rolled steel |
> 100 |
235 |
410−530 |
21 |
|
| Hot rolled sheets. |
<2.0 |
|
410−530 |
|
19 |
| Hot rolled sheets |
2.0−3.9 |
|
410−530 |
|
21 |
| Cold rolled sheets |
<2.0 |
|
410−530 |
|
21 |
| Cold rolled sheets |
2.0−3.9 |
|
410−530 |
|
23 |
Mechanical properties at elevated temperatures
| test t, ° C |
σ 0.2, MPa |
σ B, MPa |
δ,% |
ψ,% |
KCU, J / m 2 |
| 20 |
240 |
390 |
33 |
70 |
108 |
| 100 |
215 |
370 |
22 |
|
127 |
| 300 |
145 |
|
|
|
118 |
| 400 |
125 |
350 |
32 |
71 |
83 |
| 500 |
110 |
205 |
thirty |
75 |
68 |
| 600 |
59 |
135 |
43 |
86 |
78 |
Technological properties of steel Vst4ps
| Forging temperature |
| Beginning 1280, late 800. |
| Weldability |
| Limited weldability. |
| Machinability by cutting |
| When HB 152 K υ tv.spl. = 1,7, K υ b.st. = 1.7. |
| Tendency to release ability |
| Not inclined. |
| Flock sensitivity |
| Not sensitive. |
Temperature of critical points of steel Vst4ps
| Critical point |
° C |
| Ac1 |
735 |
| Ac3 |
840 |
| Ar3 |
825 |
| Ar1 |
680 |
Impact strength of steel Vst4ps
Impact strength, KCU, J / cm 2
| Delivery status, heat treatment |
KCU |
| Sheets (cross samples) with a cross section of 5−9 mm |
69 |
| Sheets (cross samples) with a section of 10−25 mm |
59 |
| Sheets (cross samples) with a section of 26−40 mm |
39 |
| Sections and sections with a section of 5−9 mm |
98 |
| Sections and sections with a section of 10−25 mm |
88 |
| Sections and sections with a section of 26−40 mm |
69 |
Endurance limit of steel Vst4ps
| σ -1, MPa |
σ B, MPa |
| 196−235 |
410−530 |
Physical properties of steel Vst4ps
| Test temperature, ° С |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
| Normal elastic modulus, E, GPa |
196 |
183 |
174 |
167 |
158 |
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