Designation
Name |
The value |
Designation GOST Cyrillic |
Ст0 |
Designation GOST Latin |
Ct0 |
Transliteration |
St0 |
By chemical elements |
- |
Description
St0 steel is used: for the manufacture of secondary and minor elements of structures and components (decking, construction valves non-critical purposes, linings, washers, railings, casings, linings; hot-rolled steel sheets with one-sided rhombic and lenticular corrugated); two-headed rails, t-type P5, is designed for ground and suspended tracks.
Standards
Name |
Code |
Standards |
Steel pipes and fittings to them |
В62 |
GOST 3262-75, TU 14-3-1160-83, TU 14-3-1428-86 |
Low carbon steel wire |
В71 |
GOST 3282-74 |
Tape |
В24 |
GOST 3560-73, GOST 6009-74, 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 9234-74, GOST 10551-75, GOST 11474-76, GOST 19240-73, GOST 19425-74, GOST 19771-93, GOST 19772-93, GOST 30565-98, GOST 535-2005, GOST 30136-95, GOST 2590-2006, GOST 2591-2006, OST 5.9086-85, OST 5.9087-84, TU 14-2-341-78, TU 14-1-5283-94 |
Sheets and strips |
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, STP М324-90 |
Blanks. Of the workpiece. Slabs |
В31 |
OST 3-1686-90, TU 14-1-4944-90 |
Sheets and strips |
В33 |
TU 14-1-4431-88 |
Bars and shapes |
В32 |
TU 14-11-245-88, TU 14-136-367-2008 |
Chemical composition
Standard |
C |
S |
P |
Fe |
N |
GOST 380-2005 |
≤0.23 |
≤0.06 |
≤0.07 |
Rest |
≤0.012 |
Fe is the basis.
Mechanical properties
Section, mm |
σU, MPa |
d5, % |
d4 |
The hot rolled shapes in the state of delivery |
≤20 |
≥300 |
≥18 |
- |
20-40 |
≥300 |
≥18 |
- |
40 |
≥300 |
≥15 |
- |
Hot-rolled plate in the delivery condition |
≤20 |
≥300 |
≥23 |
- |
≥40 |
≥300 |
≥20 |
- |
20-40 |
≥300 |
≥22 |
- |
Sheets hot rolled as supplied |
2-3.9 |
≥300 |
- |
≥13 |
2 |
≥300 |
- |
≥11 |
The cold-rolled sheets in the delivery condition |
2-3.9 |
≥300 |
- |
≥16 |
2 |
≥300 |
- |
≥14 |
Description mechanical marks
Name |
Description |
σU |
Limit short-term strength |
d5 |
Elongation after rupture |
d4 |
Elongation after rupture |
Technological properties
Name |
The value |
Weldability |
Welded without restriction; welding methods: RDS, ADS, submerged arc and gas protection electroslag welding and CCC. |
Склонность к отпускной хрупкости |
tend not |
The temperature of forging |
Beginning - 1300 °C, end - 700 °C. |
Flock-sensitive sensitivity |
not sensitive |
Machinability |
In hot rolled state at NV 103-107 and blower SB=460 MPa Kn TV.SPL.=2.1 Kn b.St.=1.65 |