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Steel 08

Designation

Name The value
Designation GOST Cyrillic 08
Designation GOST Latin 08
Transliteration 08
The chemical elements 08

Description

08 steel is used: for the manufacture of parts, which are requirements of high plasticity: washers, pipes, gaskets and other parts non-critical purposes, in the temperature range from -40 °C to 450 °C; electrically welded tubes; welded pipes for the manufacture of parts and structures in motovelotehnika; rolled sheet 1−2 mm 4−14 category, intended for cold forming; cold strip 0,05−4,00 mm, designed for bending, punching parts, making pipe; flux cored wire; parts of bearings and other metal products; details of enameled chemical equipment.

Note

The degree of deoxidation — SP.

Standards

Name Code Standards
Sectional and shaped rolling В32 GOST 1050-88, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 10702-78, GOST 14955-77, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008
Sheets and stripes В33 GOST 1577-93, GOST 4041-71, TU 14-1-253-72, TU 14-1-3172-81, TU 14-1-3579-83, TU 14-1-4516-88, TU 14-1-4674-89
Pipes steel and connecting parts to them В62 GOST 3262-75, GOST 6856-54, GOST 10704-91, GOST 10705-80, GOST 10707-80, GOST 12132-66, GOST 14162-79, GOST 20295-85, GOST 24950-81, TU 14-3-1428-86, TU 14-3Р-63-2002, TU 1373-022-05757850-08, TU 1373-013-02949352-2003
Tapes В24 GOST 3560-73
Steel wire medium- and high-carbon В72 GOST 3920-70, GOST 7372-79, GOST 9389-75, GOST 9850-72, GOST 26366-84
Tapes В34 GOST 503-81, GOST 10234-77, GOST 19851-74
Low-carbon steel wire В71 GOST 5663-79
Sheets and stripes В23 GOST 82-70, GOST 14918-80, GOST 16523-97, GOST 16523-89, GOST 16523-70, GOST 103-2006, GOST 19903-90, TU 14-1-4632-93
Sectional and shaped rolling В22 GOST 8239-89, GOST 8240-97, GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 8319.0-75, GOST 8509-93, GOST 8510-86, GOST 9234-74, GOST 10551-75, GOST 11474-76, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006, OST 5.9087-84
Bulls. Blanks. Slabs В31 OST 3-1686-90, TU 14-1-4944-90, TU 14-1-3129-81
Test methods. Packaging. Marking В29 TU 14-106-485-99
Welding and cutting of metals. Soldering, riveting В05 TU 14-4-133-73, TU 14-4-1445-87, TU 14-4-828-77, TU 14-4-898-78, TU 14-4-134-73

Mechanical characteristics

Section, mm σB, MPa d4
Tape flatted average strength of 0.1-4.0 mm according to GOST 10234-77 in the state of delivery (indicated delivery)
- 690-830 -
Cold-rolled steel strip 0,05-4,00 mm according to GOST 503-81 on delivery
≤1.5 310-440 ≥17
1.55-2 310-440 ≥18

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d4 Elongation after rupture

Physical characteristics

Temperature Е, ГПа r, кг/м3 l, Вт/(м · °С) R, НОм · м a, 10-6 1/°С С, Дж/(кг · °С)
100 207 7846 60 178 125 482
800 - 7598 30 1073 147 695

A description of the physical symbols

Name Description
Е The normal elasticity modulus
l Coefficient of thermal conductivity
a The coefficient of linear expansion

Technological properties

Name The value
Weldability Welded without restriction, except for the parts after chemical and heat treatment; welding methods: SMAW, ADS submerged arc and gas protection, the CCC.
Propensity to temper brittleness Tend not.
Forging temperature Start - 1250 °C, end - 800 °C. of the Workpiece cross-section up to 300 mm are cooled in air.
Flock-sensitive sensitivity not sensitive.
Workability by cutting In the hot rolled condition when blower SB 131 and HB=315-410 MPa Kn TV.SPL.=Of 2.1 Kn b.St.=Of 1.65.

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