Steel St3gps (ВСт3Гпс)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
Ст3Гпс |
| Designation GOST Latin |
Ct3Gpc |
| Transliteration |
St3Gps |
| The chemical elements |
3Mn |
| Name |
The value |
| Designation GOST Cyrillic |
ВСт3Гпс |
| Designation GOST Latin |
BCt3Gpc |
| Transliteration |
VSt3Gps |
| The chemical elements |
3Mn |
Description
Steel St3gps used: for the manufacture of load-bearing elements of welded structures operating at variable loads at temperatures from -20 °C to +425 °C; the two-headed rails, t-type P5, is designed for ground and suspended tracks.
Note
The degree of deoxidation — PS.
Standards
| Name |
Code |
Standards |
| Pipes steel and connecting parts to them |
В62 |
GOST 3262-75, GOST 20295-85, GOST 24950-81, TU 14-3-1160-83, TU 14-3-1428-86 |
| Tapes |
В24 |
GOST 3560-73, STP М309-74 |
| Classification, nomenclature and general norms |
В20 |
GOST 380-2005 |
| Sectional and shaped rolling |
В22 |
GOST 5422-73, GOST 5781-82, 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 11474-76, GOST 19240-73, GOST 19425-74, GOST 535-2005, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006, OST 5.9086-85, OST 5.9087-84 |
| Sheets and stripes |
В23 |
GOST 82-70, GOST 14637-89, GOST 14918-80, GOST 103-2006, TU 14-1-3023-80 |
| 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 14-1-4431-88 |
| Sectional and shaped rolling |
В32 |
TU 14-2-849-89, TU 14-11-245-88, TU 14-136-367-2008 |
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
| The hot rolled plate, long products and fittings as supplied |
| 10-20 |
≥245 |
370-490 |
≥26 |
- |
≥980 |
| 20-40 |
≥235 |
370-490 |
≥25 |
- |
≥980 |
| 40-100 |
≥225 |
370-490 |
≥23 |
- |
- |
| 100 |
≥205 |
370-490 |
≥23 |
- |
- |
| Steel hot-rolled sheet with a thickness of 12-50 mm |
| - |
225-390 |
410-570 |
26-39 |
58-68 |
- |
| - |
215-390 |
- |
- |
- |
- |
| - |
215-360 |
- |
- |
- |
- |
| - |
195-265 |
- |
- |
- |
- |
| - |
175-245 |
300-400 |
- |
65-76 |
- |
| Steel hot-rolled sheet with a thickness of 20 mm, strain aging at 350 °C (1000 h exposure) |
| - |
≥370 |
≥510 |
≥22 |
≥78 |
- |
| - |
≥320 |
≥470 |
≥22 |
≥63 |
- |
| - |
≥320 |
≥510 |
≥18 |
≥58 |
- |
| - |
≥275 |
≥440 |
≥22 |
≥65 |
- |
| - |
≥245 |
≥340 |
≥25 |
≥78 |
- |
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 |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
Technological properties
| Name |
The value |
| Weldability |
Welded without restriction; welding methods: SMAW, ADS submerged arc and gas protection electroslag welding and CCC. For thickness of more than 36 mm recommended heating and subsequent heat treatment is mandatory. |
| Propensity to temper brittleness |
tend not |
| Forging temperature |
Start - 1250 °C, the end - of 800 °C. |
| 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 |
