Steel 08KH18G8N2T (KO-3)
Steel 10Х18Н5Г9АС4 (EP492; VNS-3)
Steel 10Х32Н4Д (EP529)
Steel 10Х17Н5М2 (EP405)
Steel 10Х17Н13М3Т (ЭИ432)
Steel 10Х17Н13М2Т (ЭИ448)
Steel 10Х14Г14Н3 (DI-6)
Steel 10Х14АГ15 (DI-13)
Steel 09Cr17N7Yu1 (0Cr17N7Yu1)
Steel 09Х17Н7Ю (ЭИ973)
Steel 09Х16Н4Б (EP56; 1Х16Н4Б)
Steel 09Х15Н8Ю1 (09Х15Н8Ю; ЭИ904)
Steel 08ХГСДП
Steel 08Х22Н6Т (EP53)
Steel 08Х21Г11А6 (VNS-53)
Steel 08Х20Н4АГ10 (НН-3)
Steel 08X18Th (DI-77)
Steel 08Х18Н7Г10АМ3 (08Х18Н7Г10АМ3С2)
Steel 08Cr18Ni5G12AB (HH-3B)
Steel 08X18H5G11BAF (HH-3BF)
Steel 08X18H4G11AF (HH-3F)
Steel 08Cr18Ni12T (0Cr18Ni12T)
Steel 08X18H12B (EI402)
Steel 08Х18Г8Н2Т (KO-3)
Steel 08Cr17Ni6T (DI-21)
Steel 20Х13Н4Г9 (ЭИ100)
Cr17N14M3T steel
Cr17N14M2T steel
Steel 95X18 (EI229)
Steel 95X13M3K3B2F (EP766)
Steel 65X13
Steel 40X13 (4X13)
Steel 30X13 (3X13)
Steel 26Х14Н2 (EP208)
Steel 25X17H2B
Steel 25X17H2 (EP407)
Steel 25Х13Н2 (ЭИ474)
Steel 20X17H2 (2X17H2)
Steel 08Х17Н15М3Т (ЭИ580)
18X13H3 steel
Steel 15Х18Н12С4ТЮ (ЭИ654; 2Х18Н12С4ТЮ)
Steel 15Х17АГ14 (ЭП213)
Steel 13Х18Н10Г3С2М2 (ЗИ98)
Steel 12Х21Н5Т (ЭИ811; 1Х21Н5Т)
Steel 12Х18Н13АМ3 (EP878)
Steel 12X18H10E (EP47)
Steel 12Х17Н8Г2С2МФ (ЗИ126)
Steel 12X17G9AN4 (EI878)
Steel 12Х13Г12АС2Н2 (DI50)
Steel 11Х13Н3
Steel 03Х16Н15М3 (ЭИ844)
04X15ST steel
Steel 04X17H10M2
Steel 03Х23Н6 (ЗИ68)
Steel 03Х22Н6М2 (ЗИ67)
Steel 03Х21Н25М5ДБ
Steel 03Х21Н21М4ГБ (ЗИ35)
Steel 03Х20Н45М5Б (ChS32; 03ХН45МБ)
Steel 03Х18Н12Т (000Х18Н12Т)
Steel 03Х18Н12 (000Х18Н12)
Steel 03X18N11 (000X18N11)
Steel 03Х17Н14М2
Steel 03X17AN9 (EK177)
04X17T steel
Steel 03Х15Н35Г7М6Б (EP855)
Steel 03X13AG19 (ChS36)
Steel 03Х12Н10МТР (EP810; VNS-25)
Steel 03Х12К10М6Н4Т (EP927)
Steel 03Х11Н10М2Т2 (EP853)
Steel 02Х25Н22АМ2 (ChS108)
Steel 02Х21Н25М5ДБ (EC5)
Steel 02Х21Н21М4Г2Б (ЗИ69)
02Cr18Ni11 steel
Steel 02X17H14M3
Steel 015Х16Н15М3
Steel 06Х14Н6Д2МБТ (EP817)
Steel 08Х17Н13М2Т (0Х17Н13М2Т; ЭИ448)
Steel 08Х10Н20Т2 (0Х10Н20Т2)
Steel 08Х10Н16Т2 (0Х10Н16Т2)
Steel 07X21G7AN5 (EP222)
Steel 07X18N10P (EP287)
Steel 07Х16Н6 (EP288; СН-2А; Х16Н6)
Steel 07Х16Н4Б
Steel 07Х15Н7М2 (EP35; СН-4; Х15Н8М2Ю)
Steel 07Х16Н6
Steel 06X18H11 (EI684)
06X15H4DM steel
Steel 08Х17Н5М3 (ЭИ925)
06X13H4DM steel
Steel 06Х12Н3Д
Steel 06Х12Н3Д (08Х12Н3Д)
05KhGB steel
Steel 05Х20Н15АГ6 (ChS109)
Steel 05Х12Н9М2С3 (EP821)
Steel 05Х12Н2К3М2АФ (VNS-40)
Steel 04Х32Н8 (EP535)
Steel 04Х25Н5М2 (DI62)
Steel 04X19MAFT
Steel 04X18H10 (EI842)
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 08Х18Г8Н2Т |
| Designation GOST Latin | 08X18G8H2T |
| Transliteration | 08H18G8N2T |
| The chemical elements | 08Cr18Mn8Н2Ti |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | КО-3 |
| Designation GOST Latin | KO-3 |
| Transliteration | KO-3 |
| The chemical elements | CoО-3 |
Description
Steel 08KH18G8N2T applies: it is recommended as a substitute for steel grades 08KH18N10T and 12KH18N10T (has higher strength) for the manufacture of welded equipment operating in aggressive environments in the chemical, food and other industries at the operating temperature from -50 to +300 °C.
Note
Austenite corrosion resistant steel-ferritic class.
Standards
| Name | Code | Standards |
|---|---|---|
| Metal forming. Forgings | В03 | GOST 25054-81 |
| Classification, nomenclature and general norms | В30 | GOST 5632-72 |
| Sheets and stripes | В33 | GOST 7350-77 |
| Bulls. Blanks. Slabs | В31 | OST 3-1686-90, TU 14-1-1345-74 |
| Thermal and thermochemical treatment of metals | В04 | STP 26.260.484-2004 |
| Sectional and shaped rolling | В32 | TU 14-1-4687-89, TU 14-11-245-88 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | V | Ti | Mo | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 5632-72 | ≤0.08 | ≤0.025 | ≤0.035 | 7-9 | 17-19 | ≤0.8 | 1.8-2.8 | The rest | ≤0.3 | ≤0.2 | 0.2-0.5 | ≤0.3 | ≤0.2 |
Fe is the basis.
Mechanical characteristics
| Section, mm | sT|s0,2, MPa | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa |
|---|---|---|---|---|---|---|
| Hot rolled sheet (4,0-50,0 mm) and cold rolled (4,0-5,0 mm) steel according to GOST 7350-77. Quenching in water or under a water shower from 980-1020 °C | ||||||
| ≥345 | ≥590 | ≥20 | - | ≥588 | - | |
| Long products (samples). Quenching in water from 1000 °C + Aging (aging during aging for 1 h) (in the column test temperature is the temperature of aging) | ||||||
| - | ≥415 | ≥820 | ≥32 | ≥50 | - | - |
| Long products (samples). Quenching in water from 1000 °C | ||||||
| - | ≥80 | ≥90 | ≥45 | ≥65 | - | - |
| Long products (samples). Quenching in water from 1000 °C (provided the degree of deformation in %) | ||||||
| - | ≥390 | ≥650 | ≥22 | - | - | - |
| Bars hot rolled and forged at STP 26.260.484-2004. Quenching in water or air from 950-1050 °C | ||||||
| ≥350 | ≥600 | ≥20 | ≥30 | ≥588 | - | |
| Long products (samples). Quenching in water from 1000 °C + Aging (aging during aging for 1 h) (in the column test temperature is the temperature of aging) | ||||||
| - | ≥410 | ≥800 | ≥31 | ≥50 | - | - |
| Long products (samples). Quenching in water from 1000 °C | ||||||
| - | ≥40 | ≥50 | ≥45 | ≥70 | - | - |
| Long products (samples). Quenching in water from 1000 °C (provided the degree of deformation in %) | ||||||
| - | ≥700 | ≥820 | ≥16 | - | - | - |
| Long products (samples). Quenching in water from 1000 °C + Aging (aging during aging for 1 h) (in the column test temperature is the temperature of aging) | ||||||
| - | ≥390 | ≥790 | ≥32 | ≥52 | - | - |
| Long products (samples). Quenching in water from 1000 °C | ||||||
| - | ≥15 | ≥20 | ≥60 | ≥80 | - | - |
| Long products (samples). Quenching in water from 1000 °C (provided the degree of deformation in %) | ||||||
| - | ≥780 | ≥880 | ≥6 | - | - | - |
| Long products (samples). Quenching in water from 1000 °C + Aging (aging during aging for 1 h) (in the column test temperature is the temperature of aging) | ||||||
| - | ≥380 | ≥780 | ≥28 | ≥57 | - | - |
| Long products (samples). Quenching in water from 1000 °C | ||||||
| - | ≥5 | ≥10 | ≥70 | ≥85 | - | - |
| Long products (samples). Quenching in water from 1000 °C (provided the degree of deformation in %) | ||||||
| - | ≥660 | ≥780 | ≥19 | - | - | - |
| Long products (samples). Quenching in water from 1000 °C + Aging (aging during aging for 1 h) (in the column test temperature is the temperature of aging) | ||||||
| - | ≥390 | ≥780 | ≥28 | ≥57 | - | - |
| Long products (samples). Quenching in water from 1000 °C (provided the degree of deformation in %) | ||||||
| - | ≥1080 | ≥1100 | ≥3 | - | - | - |
| Long products (samples). Quenching in water from 1000 °C | ||||||
| - | - | - | ≥80 | ≥90 | - | - |
| Long products (samples). Quenching in water from 1000 °C + Aging (aging at aging 100 h) (in the column test temperature is the temperature of aging) | ||||||
| - | ≥410 | ≥810 | ≥32 | ≥49 | - | 200-210 |
| - | ≥450 | ≥850 | ≥27 | ≥48 | - | 240-260 |
| - | ≥410 | ≥760 | ≥29 | ≥48 | - | 230-240 |
| - | ≥370 | ≥780 | ≥24 | ≥38 | - | 285-325 |
| - | ≥510 | ≥810 | ≥10 | ≥12 | - | 325 |
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 |
| y | The relative narrowing |
| kJ/m2 | Toughness |
Physical characteristics
| Temperature | Е, ГПа | r, кг/м3 | l, Вт/(м · °С) | R, НОм · м | a, 10-6 1/°С | С, Дж/(кг · °С) |
|---|---|---|---|---|---|---|
| 0 | 212 | 7700 | 21 | 710 | - | - |
| 20 | 212 | 7700 | 21 | 710 | - | - |
| 100 | 203 | - | - | - | 123 | 462 |
| 200 | 195 | - | - | - | 131 | - |
| 300 | 184 | - | - | - | 144 | 462 |
| 400 | 177 | - | - | - | 144 | - |
| 500 | 164 | - | - | - | 153 | - |
| 600 | 167 | - | - | - | 166 | - |
| 700 | 146 | - | - | - | 16 | - |
| 800 | 161 | - | - | - | - | - |
| 900 | - | - | - | - | 164 | - |
| 1100 | - | - | - | - | 172 | - |
A description of the physical symbols
| Name | Description |
|---|---|
| Е | The normal elasticity modulus |
| r | Density |
| l | Coefficient of thermal conductivity |
| R | UD. the resistivity |
Technological properties
| Name | The value |
|---|---|
| Weldability | without restrictions. Steel is well welded RDS and ADS. Are recommended for manual welding electrodes CL-11 (SV-08Х19Н10Б). For automatic welding using a wire of steel or 08Х19Н10Б 08Х20Н9Г7Т in combination with flux an-26. |
| Forging temperature | Start - 1150 °C, end - 810 °C. |
| Features of heat treatment | Steel products to eliminate the tendency to intergranular corrosion are subjected to hardening regime: heating to 950-1050 °C, exposure during heating for quenching for products with wall thickness up to 10 mm - 30 min, over 10 mm — 20 min + 1 min per 1 mm max thickness cooling in water or air. Products austenite-ferritic steels do not require heat treatment after welding. |
