Steel St3kp (ВСт3кп)
Steel St3kp (VSt3kp)
Steel St6sp (VSt6sp)
Steel St6ps (VSt6ps)
Steel St5sp
St5ps steel
St5Gps steel
Steel St4sp (VSt4sp)
Steel St4ps (VSt4ps)
Steel St4kp (VSt4kp)
Steel St3sp (VSt3sp)
Steel St3ps (VSt3ps)
Steel St3GSp (VSt3GSp)
Steel St3Gps (VSt3Gps)
Steel St2sp (VSt2sp)
Steel St2ps (VSt2ps)
Steel St2kp (VSt2kp)
Steel St1sp
St1ps steel
Steel St1kp
Steel St0
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | Ст3кп |
| Designation GOST Latin | Ct3kp |
| Transliteration | St3kp |
| The chemical elements | 3 |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ВСт3кп |
| Designation GOST Latin | BCt3kp |
| Transliteration | VSt3kp |
| The chemical elements | 3 |
Description
St3kp steel is used: for the manufacture of expanded metal sheets, lightly loaded elements and nesvorny welded structures and components operating at temperatures from -40 °C to +400 °C; the profiles used in the railcar industry; forgings seniam to 300 mm. strength classes KP 175, KP 195; hot pan and C-shaped profiles for agricultural machinery; corrugated steel rhombic and point for shipbuilding; profile housing final drive of the tractor; welded pipes for the manufacture of parts and structures in motovelotehnika; hot-rolled steel sheets with one-sided rhombic and lenticular corrugated; two-headed rails, t-type P5, is designed for ground and suspended tracks; steel bent closed welded square and rectangular sections, intended for use in agricultural machinery, tractor and other sectors of the economy; crutches accuracy class, designed for fastening of rails to wooden sleepers and bars.
Note
The degree of deoxidation — KP.
Standards
| Name | Code | Standards |
|---|---|---|
| Tapes | В34 | GOST 19851-74 |
| Pipes steel and connecting parts to them | В62 | GOST 3262-75, GOST 8696-74, GOST 10704-91, GOST 10705-80, GOST 10706-76, GOST 10707-80, GOST 12132-66, TU 14-3-1160-83, TU 14-3-1428-86, TU 14-3Р-56-2001, TU 1373-013-02949352-2003 |
| Tapes | В24 | GOST 3560-73, GOST 6009-74, STP М309-74 |
| Classification, nomenclature and general norms | В20 | GOST 380-2005 |
| Sectional and shaped rolling | В22 | GOST 5267.0-90, GOST 5422-73, GOST 5781-82, GOST 7511-73, GOST 8239-89, GOST 8240-97, GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 8509-93, GOST 8510-86, GOST 9234-74, GOST 10551-75, GOST 11474-76, GOST 12492.1-90, GOST 12492.13-90, GOST 12492.14-90, GOST 19240-73, GOST 19425-74, GOST 19771-93, GOST 19772-93, GOST 25577-83, GOST 30565-98, GOST 535-2005, GOST 30136-95, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006, OST 5.9086-85, OST 5.9087-84, TU 14-2-341-78, TU 14-2-949-91, TU 14-1-5283-94, TU 14-1-5254-94 |
| Rails. Lining. Lining. Crutches | В42 | GOST 5812-82, GOST 8142-89, GOST 16277-93 |
| Sheets and stripes | В23 | GOST 82-70, GOST 8568-77, GOST 14637-89, GOST 14918-80, GOST 16523-97, GOST 19903-74, GOST 16523-89, GOST 16523-70, GOST 103-2006, GOST 19903-90, OST 5.9094-85, TU 36.26.11-5-89, TU 14-1-3023-80, STP М324-90 |
| Metal forming. Forgings | В03 | GOST 8479-70, OST 5Р.9125-84, ST ЦКБА 010-2004 |
| Bulls. Blanks. Slabs | В31 | OST 3-1686-90, TU 14-1-4944-90 |
| Welding and cutting of metals. Soldering, riveting | В05 | OST 36-58-81 |
| Sheets and stripes | В33 | TU 14-1-3579-83, TU 14-1-4431-88 |
| Sectional and shaped rolling | В32 | TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008 |
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % | d4 | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa |
|---|---|---|---|---|---|---|---|
| Longitudinal electric-welded pipes (Dy=10-530 mm) in the delivery condition. Listed marsvolta base metal | |||||||
| - | ≥225 | ≥372 | ≥22 | - | - | - | - |
| Forgings. Normalization | |||||||
| 100-300 | ≥175 | ≥355 | ≥24 | - | ≥50 | ≥590 | 101-143 |
| 100 | ≥175 | ≥355 | ≥28 | - | ≥55 | ≥640 | 101-143 |
| 100-300 | ≥195 | ≥390 | ≥23 | - | ≥50 | ≥540 | 111-156 |
| 100 | ≥195 | ≥390 | ≥26 | - | ≥55 | ≥590 | 111-156 |
| The hot rolled plate, long products and fittings as supplied | |||||||
| ≤20 | ≥235 | 360-460 | ≥27 | - | - | - | - |
| 20-40 | ≥225 | 360-460 | ≥26 | - | - | - | - |
| 40-100 | ≥215 | 360-460 | ≥24 | - | - | - | - |
| 100 | ≥195 | 360-460 | ≥24 | - | - | - | - |
| Hot-rolled sheet in the delivery condition. Group strength ОК360В | |||||||
| ≤2 | ≥235 | 360-530 | - | ≥20 | - | - | - |
| 2-3.9 | ≥235 | 360-530 | - | ≥22 | - | - | - |
| Cold-rolled sheet in the delivery condition. Group strength ОК360В | |||||||
| ≤2 | ≥235 | 360-530 | - | ≥22 | - | - | - |
| 2-3.9 | ≥235 | 360-530 | - | ≥24 | - | - | - |
| Sheets with a thickness of 12 mm delivery condition (transverse specimens) | |||||||
| - | ≥205 | ≥385 | ≥37 | - | ≥60 | - | - |
| - | ≥190 | ≥370 | ≥27 | - | ≥59 | - | - |
| - | ≥175 | ≥430 | ≥21 | - | ≥51 | - | - |
| - | ≥160 | ≥450 | ≥23 | - | ≥49 | - | - |
| - | ≥150 | ≥395 | ≥35 | - | ≥62 | - | - |
Description mechanical marks
| Name | Description |
|---|---|
| Section | Section |
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB | Limit short-term strength |
| d5 | Elongation after rupture |
| d4 | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
Physical characteristics
| Temperature | Е, ГПа |
|---|---|
| 20 | 213 |
| 100 | 208 |
| 200 | 202 |
| 300 | 195 |
| 400 | 187 |
| 500 | 176 |
| 600 | 167 |
| 700 | 153 |
A description of the physical symbols
| Name | Description |
|---|---|
| Е | The normal elasticity modulus |
| r | Density |
| l | Coefficient of thermal conductivity |
| R | UD. the resistivity |
| a | The coefficient of linear expansion |
Technological properties
| Name | The value |
|---|---|
| Weldability | Welded without restriction; welding methods: SMAW, ADS submerged arc and gas protection electroslag welding, the CCC. For thickness of more than 36 mm recommended heating and subsequent heat treatment. |
| Propensity to temper brittleness | tend not |
| Forging temperature | Beginning - 1300 °C, the end - 750 °C. air Cooling. |
| Flock-sensitive sensitivity | not sensitive |
| Workability by cutting | In the hot rolled condition when blower SB 124 and HB=400 MPa Kn TV.SPL.=1.8 Kn b.St.=1.6 |
