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Steel 15ГС

03CrNiSteel 05G1B steel 06G2AF steel 06G2MFB steel 06G2FR steel 06CGSY steel Steel 07GBU Steel 07GFB (07GFB-U) 08G1NFB steel Steel 08G2MF (08G2MFA) 08G2S steel 08G2SFB steel Steel 08G2T (08G2T-U) 08G2FBT steel 08GBU steel Steel 08GBUTR Steel 09G2 Steel 09G2D Steel 09G2S (09G2SA) Steel 09G2SD Steel 09G2FB (09G2BT) 09GBU steel 09GNFB steel Steel 09GSNBTs 09CrNi2Ab steel 10G2B steel Steel 10G2BD 10G2BTU steel Steel 10G2S1 Steel 10G2S1D 10G2SB steel 10G2SFB steel 10G2T steel 10G2FB steel 10Г2ФБЮ steel 10GNB steel Steel 10GS2 10GT steel Steel 10ХГСН1Д (СХЛ-45) 10XDP steel Steel 10ХН1М (ВК-1А) 10KhNDM steel 10XNDP steel Steel 10ХСНД (СХЛ-4) Steel 12G (12GA) Steel 12G2AF Steel 12G2B Steel 12G2S Steel 12G2SB Steel 12G2SMF Steel 12G2SMFAU 12GN2MFAu steel 12NDU steel Steel 12GS (Sv-12GS) 12GSB steel 12GF steel 12ХГДАФ steel 12HSND steel Steel 13G1S (13G1S-U) Steel 13G1SB (13G1SB-U) 13G2AF steel 13GDF steel Steel 13GS (13GS-U) Steel 13GF (13GFA) Steel 14G2 Steel 14G2AF Steel 14G2AFD Steel 14GS Steel 14GF Steel 14ХГМДЦ Steel 14KhGS 15Г2АФД steel (15Г2АФДпс) 15G2SF steel 15G2SFD steel 15Г2ФБЮ steel 15GS steel 15GF steel 15GFD steel 15KhDP steel 15HSND steel Steel 16G (16GA) 16G2AF steel Steel 16G2AFD Steel 16G2SF (16G2SAF) 16GD steel 16GMYUCH steel 16GS steel 16GFB steel Steel 16D Steel 17G1S (17G1S-U) Steel 17GS Steel 18G2AF (18G2AFps) Steel 18Г2АФД (18Г2АФДпс) 18G2S steel 18YuT steel (Ch-33) Steel 19YuFT (Ch37) Steel 1Х2М1 Steel 20G2S 20GS steel Steel 20GS2 Steel 20GSF (20GSFL) Steel 20Х2Г2СР Steel 20KhG2Ts Steel 20ХГСС2 Steel 22G2 22GYu steel Steel 22C Steel 22Kh2G2AU Steel 22Kh2G2P Steel 23Cr2G2T Steel 25G2S Steel 25GS Steel 25C2P Steel 27GS Steel 28G2S1D Steel 28G2SFB (28G2SFBD) Steel 28C Steel 30HS2 Steel 32G2RPs Steel 35GS 45KhGMA steel Steel 80C Steel SVS-690 (Severstal-690) X56 steel

Designation

Name The value
Designation GOST Cyrillic 15ГС
Designation GOST Latin 15GC
Transliteration 15GS
The chemical elements 15MnС

Description

15ГС steel is used: for the manufacture of rolled plate, long products and pipe blanks; parts such as bottoms, collar flanges, fittings, rings, tubes, tees and parts of rectangular shape for power equipment and pipelines with an absolute pressure of more than 3.9 MPa and thermal power plants; components for fixed piping of the feed water of boilers SVP, operating at temperatures up to +280 °C; the equipment and pipelines of nuclear power plants (NPP); of billets intended for the manufacture of seamless cold, warm, hot-wrought, including hot-pressed and hot-pressed pipes is reduced, designed for steam boilers and pipelines, installations with high and supercritical steam parameters.

Standards

Name Code Standards
Metal forming. Forgings В03 GOST 8479-70, OST 108.030.113-87, OST 26-01-135-81, TU 108.1267-84, TU 108.11.653-82
Welding and cutting of metals. Soldering, riveting В05 OST 24.125.02-89
Pipes steel and connecting parts to them В62 OST 24.125.30-89, TU 14-3-420-75, TU 14-3-463-2005, TU 14-3-460-2009, TU 1301-039-00212179-2010, TU 1310-030-00212179-2007, TU 108-874-2012, TU 14-3Р-55-2001, TU 14-3-460-2003
Sectional and shaped rolling В32 TU 108-771-84, TU 108.772-85, TU 14-1-1529-2003
Sheets and stripes В33 TU 108.1268-84
Bulls. Blanks. Slabs В31 TU 108.1398-86, TU 108-938-80, TU 14-1-1787-76, TU 14-1-2560-78, TU 14-1-4992-91, TU 24-11.006-89

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Mo
TU 14-3-460-2003 0.12-0.18 ≤0.025 ≤0.025 0.9-1.3 ≤0.3 0.7-1 ≤0.3 The rest ≤0.3 -
TU 108-874-2012 0.13-0.17 ≤0.025 ≤0.03 0.9-1.3 ≤0.3 0.7-1 ≤0.3 The rest ≤0.3 ≤0.3
TU 14-3Р-55-2001 0.12-0.18 ≤0.025 ≤0.035 0.9-1.3 ≤0.3 0.7-1 ≤0.3 The rest ≤0.3 -
TU 1301-039-00212179-2010 0.12-0.18 ≤0.025 ≤0.035 0.9-1.3 ≤0.3 0.7-1 ≤0.3 The rest ≤0.3 ≤0.15
Fe is the basis.
According to TU 108.1268-84, the technological addition of rare earth metals is allowed up to 0.20% by calculation.
According to TU 14-1-1529-2003 and TU 14-3-460-2003 for steel produced by scrap process or from cuprous ores, the mass fraction of residual copper and nickel is allowed up to 0.30% of each. A technological addition of rare earth elements is allowed to improve the quality of the metal.
According to TU 14-3R-55-2001, the content of nickel and chromium is allowed to not exceed 0.40% of each. The presence of rare-earth elements introduced as technological additives is allowed.
According to TU 1301-039-00212179-2010 the chemical composition is given for steel grade 15GS-III. The content of each impurity element, not regulated by the table, is allowed up to 0.050%.
According to TU 108-874-2012 the chemical composition is given for steel grade 15GS. The presence of rare-earth elements in steel is not a defective feature. Permissible deviations in chemical composition: carbon ± 0.020%, silicon ± 0.050%, manganese ± 0.10%, chromium ± 0.050%.

Mechanical characteristics

Section, mm sT|s0,2, MPa σB, MPa d5, % d y, % kJ/m2, кДж/м2
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥237 - - - - -
Pipe. Normalization at 900 - 930°C, air cooling
- - ≥500 16-18 - 40-45 -
Tubular billet + hot deformed Tubes (DH=57-465 mm) TU 14-3-460-2003. Normalization at 900-930 °C, air cooling
20-25 ≥295 490-640 ≥16 - ≥40 ≥490
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥213 - - - - -
Tubular billet + hot deformed Tubes (DH=57-465 mm) TU 14-3-460-2003. Normalization at 900-930 °C, air cooling
20-25 ≥295 490-640 ≥18 - ≥45 ≥590
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥202 - - - - -
Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Normalization at 900-930 °C, air cooling
- ≥294 ≥490 ≥16 - ≥40 ≥490
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥249 - - - - -
Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Normalization at 900-930 °C, air cooling
- ≥294 ≥490 ≥18 - ≥45 ≥590
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥235 - - - - -
Pipe seamless steel 15ГС-ø in delivery condition on the other 1301-039-00212179-2010. Normalization at 900-930 °C, air cooling (allowed after normalization the holidays at 630-670 °C)
- ≥295 490-610 ≥16 - ≥40 ≥590
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥196 - - - - -
Pipe tsentrobezhnolityh, heat-treated on the other 108-874-2012
- ≥274 470-617 - ≥20 ≥40 ≥490
Sheet metal 25-140 mm. Normalization at 900-930 °C, air cooling + Vacation at 650-680 °C, air cooling (the average data)
- ≥190 - - - - -
- ≥178 - - - - -
Seamless pipes for steam boilers and pipelines according to TU 14-3P-55-2001. Normalization at 900-930 °C, air cooling
- ≥245 - - - - -
- ≥167 - - - - -
- ≥127 - - - - -

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
d Elongation after rupture
y The relative narrowing
kJ/m2 Toughness

Technological properties

Name The value
Weldability Without restrictions.
Propensity to temper brittleness Tend not.
Flock-sensitive sensitivity not sensitive.
Macrostructure and contamination In the macrostructure of the pipe on the other 108-874-2012 should not be cracked, placenow and bundles. Allowed separate slag and sand inclusions, and a gas sink maximum linear size up to 1 mm. increased Local travelmasti metal 1-5 points scale rejection of the sign is not. Contamination of the metal pipes, non-metallic inclusions should not exceed the arithmetic mean score of the sulphides 2.5 points, according to the oxides - 3.5 points, silicates - 4 points scale.
Microstructure On the other 108-874-2012 the size of ferritic grains should be no larger than 7 points according to GOST 5639.
Features of production Pipe tsentrobezhnolityh on the other 108-874-2012 are delivered in heat treated condition. Tubes are homogenized and anti-flake annealing, the modes of which shall be agreed with TSNIITMASH. The mode of heat treatment: Normalization at 930-960 °C. be conducted after normalization, tempering at 630-670 °C.

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