ВСт3Гпс Structural carbon steel of ordinary quality

Steelun Designation of ВСт3Гпс Structural carbon steel of ordinary quality:

Name The value
Designation GOST Cyrillic Ст3Гпс
Designation GOST Latin Ct3Gpc
Transliteration St3Gps
By chemical elements 3Mn
Name The value
Designation GOST Cyrillic ВСт3Гпс
Designation GOST Latin BCt3Gpc
Transliteration VSt3Gps
By chemical elements 3Mn

Description Steelun of ВСт3Гпс Structural carbon steel of ordinary quality:

Steel ВСт3Гпс 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.

Steelun Standards of ВСт3Гпс Structural carbon steel of ordinary quality:

Name Code Standards
Steel pipes and fittings to them В62 GOST 3262-75, GOST 20295-85, GOST 24950-81, TU 14-3-1160-83, TU 14-3-1428-86
Tape В24 GOST 3560-73, STP М309-74
Classification, nomenclature and General rules В20 GOST 380-2005
Bars and shapes 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 strips В23 GOST 82-70, GOST 14637-89, GOST 14918-80, GOST 103-2006, TU 14-1-3023-80
Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
Welding and cutting metals. Soldering, riveting В05 OST 36-58-81
Sheets and strips В33 TU 14-1-4431-88
Bars and shapes В32 TU 14-2-849-89, TU 14-11-245-88, TU 14-136-367-2008

Chemical composition Steelun of ВСт3Гпс Structural carbon steel of ordinary quality:

Standard C S P Mn Cr Si Ni Fe Cu N As
GOST 380-2005 0.14-0.22 ≤0.05 ≤0.04 0.8-1.1 ≤0.3 ≤0.15 ≤0.3 Rest ≤0.3 ≤0.012 ≤0.08
Fe is the basis.
The nitrogen content is indicated for steel smelted in electric furnaces. In open-hearth and converter steels, the content of N≤0.010%.

Steelun Mechanical properties of ВСт3Гпс Structural carbon steel of ordinary quality:

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
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 steelun of ВСт3Гпс Structural carbon steel of ordinary quality:

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness

Steelun Technological properties of ВСт3Гпс Structural carbon steel of ordinary quality:

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.
The tendency to temper brittleness tend not
The temperature of forging Start – 1250 °C, the end – of 800 °C.
Flock-sensitive sensitivity not sensitive
Machinability In the hot rolled condition when blower SB 124 and HB=400 MPa Kn TV.SPL.=1.8 Kn b.St.=1.6

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