Steel 07KH16N4B
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 | 07Х16Н4Б |
| Designation GOST Latin | 07X16H4B |
| Transliteration | 07H16N4B |
| The chemical elements | 07Cr16Н4Nb |
Description
07KH16N4B steel is used: for the production of forgings used in the manufacture of parts in shipbuilding and ship repair; forgings and stampings highly loaded parts products marine engineering; welded components of nuclear power equipment and chemical industries.
Note
High-alloy steel high-strength corrosion-resistant martensitic class.
Standards
| Name | Code | Standards |
|---|---|---|
| Metal forming. Forgings | В03 | GOST 25054-81, OST 5Р.9125-84, ST ЦКБА 010-2004 |
| Classification, nomenclature and general norms | В30 | GOST 5632-72 |
| Bulls. Blanks. Slabs | В31 | OST 3-1686-90, OST 95-10-72, TU 14-1-3570-83, TU 14-1-1564-76, TU 14-132-176-89 |
| Thermal and thermochemical treatment of metals | В04 | ST ЦКБА 016-2005 |
| Sectional and shaped rolling | В32 | TU 14-1-3573-83, TU 14-11-245-88, TU 14-1-5208-93 |
| Castings with special properties (cast iron and steel) | В83 | TU 5.961-11131-79, TU 5.961-11191-81 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | V | Ti | Mo | Nb | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-3573-83 | 0.05-0.1 | ≤0.02 | ≤0.025 | 0.2-0.5 | 15-16.5 | ≤0.6 | 3.5-4.5 | The rest | ≤0.2 | - | - | - | 0.2-0.4 | - |
| OST 5Р.9125-84 | ≤0.1 | ≤0.02 | ≤0.025 | 0.2-0.5 | 15-16.5 | ≤0.6 | 3.5-4.5 | The rest | ≤0.2 | - | - | - | 0.2-0.4 | - |
| TU 14-132-176-89 | 0.05-0.1 | ≤0.02 | ≤0.025 | 0.2-0.5 | 15-16.5 | ≤0.6 | 3.5-4.5 | The rest | ≤0.3 | - | - | - | 0.2-0.4 | - |
| GOST 5632-72 | 0.05-0.1 | ≤0.02 | ≤0.025 | 0.2-0.5 | 15-16.5 | ≤0.6 | 3.5-4.5 | The rest | ≤0.3 | ≤0.2 | ≤0.2 | ≤0.3 | 0.2-0.4 | ≤0.2 |
Fe is the basis.
According to TU 14-1-3573-83, the chemical composition is given for steel grades 07Х16Н4Б and 07Х16Н4Б-Ш. The steel is smelted on a high-purity charge billet 22RU. The content of impurities of non-ferrous metals should be no more than: tin - 0.0040%, arsenic 0.0080%, lead 0.0050%, zinc 0.0040%, antimony 0.0040%, bismuth 0.00010% . The following maximum deviations in the content of elements in steel are allowed in finished products: by chroma ± 0.10%, by nickel ± 0.050%, by carbon and niobium ± 0.010% each, by silicon and manganese +0.020% each. The residual content of the elements is in accordance with GOST 5632. When steel is smelted, the addition of ferroboron by 0.0030% boron by calculation and chemical analysis is not determined.
According to TU 14-1-3570-83, the chemical composition is given for steel grades 07Х16Н4Б and 07Х16Н4Б-Ш. The steel is smelted on a high-purity charge billet 22RU. The content of impurities of non-ferrous metals (tin, arsenic, lead, zinc, antimony, bismuth) should not exceed 1 point for each element. The following maximum deviations in the content of elements in steel are allowed in finished products: by chroma ± 0.10%, by nickel ± 0.050%, by carbon and niobium ± 0.010% each, by silicon and manganese +0.020% each. The residual content of the elements is in accordance with GOST 5632. When steel is smelted, the addition of ferroboron by 0.0030% boron by calculation and chemical analysis is not determined.
According to OST 5P.9125-84, the total mass fraction of Nb + Ta = 0.20-0.40% (specified in the value for Nb).
According to TU 14-132-176-89 the chemical composition is given for steel grade 07H16N4B. Tolerances in chemical composition are permissible in steel: carbon ± 0.010%, nickel ± 0.050%, phosphorus +0.0030%, chromium ± 0.10%, silicon +0.020%, manganese +0.020%, niobium ± 0.010%. Permissible deviations in chemical composition and content of residual elements are in accordance with GOST 5632. The mass fraction of vanadium is determined by chemical analysis and the results are entered into the certificate - the content of vanadium is optional.
According to TU 14-1-3573-83, the chemical composition is given for steel grades 07Х16Н4Б and 07Х16Н4Б-Ш. The steel is smelted on a high-purity charge billet 22RU. The content of impurities of non-ferrous metals should be no more than: tin - 0.0040%, arsenic 0.0080%, lead 0.0050%, zinc 0.0040%, antimony 0.0040%, bismuth 0.00010% . The following maximum deviations in the content of elements in steel are allowed in finished products: by chroma ± 0.10%, by nickel ± 0.050%, by carbon and niobium ± 0.010% each, by silicon and manganese +0.020% each. The residual content of the elements is in accordance with GOST 5632. When steel is smelted, the addition of ferroboron by 0.0030% boron by calculation and chemical analysis is not determined.
According to TU 14-1-3570-83, the chemical composition is given for steel grades 07Х16Н4Б and 07Х16Н4Б-Ш. The steel is smelted on a high-purity charge billet 22RU. The content of impurities of non-ferrous metals (tin, arsenic, lead, zinc, antimony, bismuth) should not exceed 1 point for each element. The following maximum deviations in the content of elements in steel are allowed in finished products: by chroma ± 0.10%, by nickel ± 0.050%, by carbon and niobium ± 0.010% each, by silicon and manganese +0.020% each. The residual content of the elements is in accordance with GOST 5632. When steel is smelted, the addition of ferroboron by 0.0030% boron by calculation and chemical analysis is not determined.
According to OST 5P.9125-84, the total mass fraction of Nb + Ta = 0.20-0.40% (specified in the value for Nb).
According to TU 14-132-176-89 the chemical composition is given for steel grade 07H16N4B. Tolerances in chemical composition are permissible in steel: carbon ± 0.010%, nickel ± 0.050%, phosphorus +0.0030%, chromium ± 0.10%, silicon +0.020%, manganese +0.020%, niobium ± 0.010%. Permissible deviations in chemical composition and content of residual elements are in accordance with GOST 5632. The mass fraction of vanadium is determined by chemical analysis and the results are entered into the certificate - the content of vanadium is optional.
Mechanical characteristics
| Section, mm | t отпуска, °C | sT|s0,2, MPa | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa | HRC |
|---|---|---|---|---|---|---|---|---|
| Blank pieces of pipe fittings according to ST CKBA 016-2005 steel 07KH16N4B (07KH16N4B-W). Quenching in oil with 1040-1060 °C + Vacation at 275-300 °C, air cooling | ||||||||
| ≤200 | - | ≥931 | ≥1029 | ≥10 | ≥45 | ≥784 | 302-351 | - |
| 200-300 | - | ≥735 | ≥882 | ≥13 | ≥50 | ≥833 | 269-302 | - |
| 300-400 | - | ≥686 | ≥882 | ≥13 | ≥50 | ≥833 | 269-302 | - |
| 400-500 | - | ≥686 | ≥882 | ≥12 | ≥40 | ≥833 | 269-302 | - |
| Billets of steel grades 07KH16N4B and 07KH16N4B-sh (forgings) OST 95-10-72. Quenching in oil with 1040-1060 °C + Vacation, air cooling (samples) | ||||||||
| ≤180 | 620-660 | ≥735 | ≥882 | ≥13 | ≥50 | ≥588 | 248-302 | 20-30 |
| ≤100 | 270-310 | ≥883 | ≥1029 | ≥10 | ≥45 | ≥588 | 302-375 | 30-38 |
| Forgings for parts resistant to the ICC. Quenching in oil with 1040-1060 °C, cooled to 70-90 °C + Vacation at 640-660 °C (first stage) air cooling + Vacation at 610-630 °C (stage II) air cooling | ||||||||
| 500 | - | ≥690 | ≥882 | ≥12 | ≥40 | ≥558 | 269-302 | - |
| Bars hot rolled and forged on the other 14-1-3573-83, THE 14-1-3570-83. The longitudinal samples. Quenching in oil with 1040-1060 °C (exposure 1-2 min/1mm section) + Vacation at 640-660 °C (exposure 2 hours), air cooling | ||||||||
| 25-30 | - | ≥735 | ≥880 | ≥13 | ≥50 | ≥883 | - | - |
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 |
| HRC | Rockwell hardness (indenter diamond spheroconical) |
Technological properties
| Name | The value |
|---|---|
| Macrostructure and contamination | Macrostructure of steel, when checking on the etched templeto should not have shrinkage looseness, bubbles, captivity, cracks, fistulas and slag inclusions. The metal of the electroslag remelting allowed layer-by-layer crystallization and the light circuit is not more than the 3rd point of the scale GOST 10243. Pollution steel non-metallic inclusions shall not exceed the following standards for maximum grade: for steel 07KH16N4B-W - Oxides (OS, OT), silicates (CX, SP) and sulfides (S) 2, silicates, non-deformed (SN) not more than 2.5, nitrides and carbonitrides - not more than 3.5; for steel 07KH16N4B - Oxides (OS, OT), silicates (CX, SP) and sulfides (s) is not more than 3, silicates, non-deformed (SN) - not more than 3.5, nitrides and carbonitrides - no more than 4. |
| Features of heat treatment | To obtain characteristic values of mechanical properties and hardness set ST CKBA 010 and to achieve maximum corrosion resistance, parts (workpiece) valves shall be subjected to hardening and tempering. The heating of the parts (workpieces) in the temperature range from 500 °C to 800 °C must be carried out at a speed of not more than 200 °C per hour. In the temperature range 750 - 800 °C it is necessary to give exposure to the full heating of the charge. Further heating to the quenching temperature produced by the furnace. For parts with thickness (diameter) up to 120 mm the rate of heating is not limited and aging at a temperature of from 750 °C to 800 °C is not possible. The time between quenching and the beginning of vacation - less than 3 hours. Welded components and steel products 07KH16N4B (07KH16N4B-sh) to improve the corrosion resistance subjected to annealing according to one of the modes. 1 mode: Heating to 640-660 °C, exposure - 3-4 min/mm thickness but not less than 5 h, air cooling (in the presence of a welded Assembly of parts made of steel 14KH17N2 hardfacings cooling of the welded Assembly after annealing is performed with the furnace or with the furnace to 300 °C, and then to the air). Mode is used for parts operating at temperatures up to 100 °C. 2 mode: Heating up to 670-680 °C, exposure - 3-4 min/mm thickness but not less than 5 h, air cooling or Heating to 600-620 °C, exposure - 3-4 min/mm thickness but not less than 2 h, air cooling. Mode is used for parts operating at temperatures up to 100 °C. |
| Machining by cutting | To improve the machinability and the hardness HB ≤ 269 workpiece is subjected to annealing at 630-650 °C for 4-8 h with air cooling. |
| Propensity to intergranular corrosion | Steel must be resistant to intergranular corrosion. |
