Steel ВСт2кп
Description
Steel VSt2kp
Steel VSt2kp: Database of steels and alloys. Below is the 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 VSt2kp.
General information about steel VSt2kp
| Delivery type |
| Long products, including shaped: GOST 2590−71, GOST 2591−71, GOST 8239−72, GOST 19772−74, GOST 19771−74, GOST 8278−75, GOST 8281−80, GOST 8283−77, GOST 380 -71, GOST 8509−86, GOST 8510−86, GOST 8240−72, GOST 535−79, GOST 2879−69. Thick sheet GOST 19903−74 Thin sheet GOST 19903−74, GOST 16523−70. Tape GOST 503−81. Strip GOST 103−76, GOST 82−70. Wire GOST 3282−74, GOST 17305−71. Pipes: GOST 10705−80, GOST 10706−76, GOST 3262−75. |
| Application |
| Irresponsible parts of increased ductility, lightly loaded elements of welded structures operating under constant loads and positive temperatures. |
Chemical composition of steel VSt2kp
| Chemical element |
% |
| Silicon (Si), no more |
0.07 |
| Manganese (Mn) |
0.25−0.50 |
| 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) |
0.09−0.15 |
| Phosphorus (P), no more |
0.04 |
| Chromium (Cr), no more |
0.30 |
Mechanical properties of steel VSt2kp
Mechanical properties
| Heat treatment, delivery condition |
Section, mm |
σ 0.2, MPa |
σ B, MPa |
δ 5 ,% |
δ 4 ,% |
| Hot rolled products |
<20 |
215 |
320−410 |
33 |
|
| Hot rolled products |
20−40 |
205 |
320−410 |
32 |
|
| Hot rolled products |
40−100 |
195 |
320−410 |
thirty |
|
| Hot rolled products |
> 100 |
185 |
320−410 |
thirty |
|
| Hot rolled sheets |
<2.0 |
|
320−410 |
|
21 |
| Hot rolled sheets |
2.0−3.9 |
|
320−410 |
|
23 |
| Cold rolled sheets |
> 3.9 |
|
320−410 |
|
24 |
| Cold rolled sheets |
2.0−3.9 |
|
320−410 |
|
26 |
Technological properties of steel VSt2kp
| Forging temperature |
| Beginning 1300, end 750. Air cooling. |
| Weldability |
| Can be welded without restrictions; welding methods: RDS, ADS submerged arc and gas shielded, EShS, KTS. For thicknesses over 36 mm, preheating and subsequent heat treatment are recommended. |
| Machinability by cutting |
| In hot-rolled condition at HB 137 K υ tv.spl. = 2.0 and K υ b.st. = 1.6 |
| Tendency to release ability |
| Not inclined |
| Flock sensitivity |
| Not sensitive |
Temperature of critical points of steel ВСт2кп
| Critical point |
° C |
| Ac1 |
735 |
| Ac3 |
854 |
| Ar3 |
835 |
| Ar1 |
682 |
Impact strength of steel VSt2kp
Impact strength, KCU, J / cm 2
| Delivery status, heat treatment |
+20 |
0 |
-20 |
-40 |
| Hot rolled bar with a diameter up to 150 mm |
24−64 |
13−16 |
8 |
8 |
Endurance limit of VSt2kp steel
| σ -1, MPa |
σ B, MPa |
| 176−196 |
323−412 |
