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Steel St1sp

Designation

Name The value
Designation GOST Cyrillic Ст1сп
Designation GOST Latin Ct1cp
Transliteration St1sp
The chemical elements 1

Description

St1sp steel is used: for the manufacture of parts with high viscosity and low hardness, the anchor bolts connecting the casings, fasteners irresponsible destination, rivets, non-critical valves; electrically welded tubes; two-headed rails, t-type P5, is designed for ground and suspended tracks.

Note

The degree of deoxidation — SP.

Standards

Name Code Standards
Tapes В34 GOST 19851-74
Pipes steel and connecting parts to them В62 GOST 3262-75, GOST 10704-91, GOST 10705-80, GOST 20295-85, GOST 24950-81, TU 14-3-1160-83, TU 14-3-1428-86, 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 5422-73, GOST 5781-82, GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 9234-74, GOST 11474-76, GOST 19240-73, GOST 19425-74, GOST 30565-98, GOST 535-2005, GOST 30136-95, OST 5.9086-85, OST 5.9087-84, TU 14-2-341-78, TU 14-1-5283-94
Sheets and stripes В23 GOST 8568-77, GOST 14918-80, GOST 16523-97, GOST 16523-89, GOST 16523-70
Bulls. Blanks. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
Sheets and stripes В33 TU 14-1-3579-83, 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, % d4
The hot rolled shapes in the state of delivery
≤10 ≥205 315-410 ≥34 -
≥100 ≥175 315-410 ≥31 -
10-20 ≥205 315-410 ≥34 -
20-40 ≥195 315-410 ≥33 -
40-100 ≥185 315-410 ≥31 -
Sheet as supplied. Without heat treatment
≤4 190-220 320-420 ≥30 -
Hot-rolled sheet in the delivery condition. Group strength ОК300В
≤2 ≥215 300-480 - ≥21
2-3.9 ≥215 300-480 - ≥23
Cold-rolled sheet in the delivery condition. Group strength ОК300В
≤2 ≥215 300-480 - ≥24
2-3.9 ≥215 300-480 - ≥26

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

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