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Steel St3ps (ВСт3пс)

Designation

Name The value
Designation GOST Cyrillic Ст3пс
Designation GOST Latin Ct3pc
Transliteration St3ps
The chemical elements 3
Name The value
Designation GOST Cyrillic ВСт3пс
Designation GOST Latin BCt3pc
Transliteration VSt3ps
The chemical elements 3

Description

St3ps steel is used: for the production of shaped and sheet rolled (5th category) with a thickness of 10 mm. used for load-bearing elements of welded structures operating at variable loads at temperatures from -40 °C to +425 °C; rent from 10 to 25 mm. — bearing elements of welded structures operating at temperatures from — 40 °C to +425°C under the condition of supply with guaranteed weldability; casting parts of pipe fittings; forgings seniam to 300 mm. strength classes KP 175, KP 195; expanded metal sheets; hot rolled pan and odnoselchanka profiles for agricultural machinery; profile housing final drive of the tractor; hot rolled profiles for the production of rims for agricultural machines; electric-welded pipes for the manufacture of parts and structures in motovelotehnika; 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; hot-rolled steel sections sheet piling, designed for cellular structures and impervious curtain; crutches accuracy class, designed for fastening of rails to wooden sleepers and bars.

Note

The degree of deoxidation — PS.

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, GOST 20295-85, GOST 24950-81, TU 14-3-1160-83, TU 14-3-1428-86, TU 1380-001-08620133-05, TU 14-3Р-56-2001, TU 14-3-377-99, 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 4781-85, GOST 5267.0-90, 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 10551-75, GOST 10884-94, GOST 11474-76, GOST 12492.1-90, GOST 12492.2-90, GOST 12492.4-90, GOST 12492.5-90, GOST 12492.14-90, GOST 19240-73, GOST 19425-74, GOST 19771-93, GOST 19772-93, GOST 25577-83, GOST 26020-83, 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 14-1-3094-80, TU 14-2-341-78, TU 14-2-853-89, TU 14-2-949-91, TU 14-1-5282-94, HUNDRED АСЧМ 20-93, TU 14-1-5283-94, TU 14-105-568-93, 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, TU 36.26.11-5-89, TU 14-1-3023-80
Metal forming. Forgings В03 GOST 8479-70, ST ЦКБА 010-2004
Welding and cutting of metals. Soldering, riveting В05 OST 26-260.453-92
Bulls. Blanks. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
Thermal and thermochemical treatment of metals В04 ST ЦКБА 026-2005
Sheets and stripes В33 TU 14-1-3579-83, TU 14-1-4431-88
Sectional and shaped rolling В32 TU 14-105-454-86, TU 14-2-849-89, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
Test methods. Packaging. Marking В29 TU 14-106-485-99
Low-carbon steel wire В71 TU 14-4-1813-97

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 ≥690 101-143
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 ≥245 370-480 ≥26 - - - -
20-40 ≥235 370-480 ≥25 - - - -
40-100 ≥225 370-480 ≥23 - - - -
100 ≥205 370-480 ≥23 - - - -
Blank pieces of pipe fittings. Extract at 900-950 °C (2.5-4.0 hours depending on the thickness and weight of the workpiece) annealing in air
300 ≥175 ≥355 ≥24 - ≥50 ≥590 101-143
Hot-rolled sheet in the state of delivery (specified group strength)
≤2 ≥235 360-530 - ≥20 - - -
2-3.9 ≥235 360-530 - ≥22 - - -
≤2 ≥255 370-530 - ≥20 - - -
2-3.9 ≥255 370-530 - ≥22 - - -
Cold-rolled sheet in the state of delivery (specified group strength)
≤2 ≥235 360-530 - ≥22 - - -
2-3.9 ≥235 360-530 - ≥24 - - -
≤2 ≥255 370-530 - ≥22 - - -
2-3.9 ≥255 370-530 - ≥24 - - -

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
0 213
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.

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