Steel 95X18 (ЭИ229)
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 | 95Х18 |
| Designation GOST Latin | 95X18 |
| Transliteration | 95H18 |
| The chemical elements | 95Cr18 |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ЭИ229 |
| Designation GOST Latin | EI229 |
| Transliteration | EhI229 |
| The chemical elements | - |
Description
Steel 95X18 is used: for the manufacture of bushings, axles, rods, ball and roller bearings of various parts of aircraft and aviation instrument and other parts, which are requirements of high hardness and wear resistance and operating at temperatures up to +500 °C or exposed to moderate corrosive environments; ball bearings with high hardness for petroleum machinery; parts of rolling bearings with special purposes; knives of the highest quality; of the bushings and other parts subject to heavy wear.
Note
Steel chromium corrosion-resistant martensitic class.
Steel usually is used after quenching, low vacation.
Standards
| Name | Code | Standards |
|---|---|---|
| Sheets and stripes | В23 | GOST 103-2006 |
| Sectional and shaped rolling | В22 | GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006 |
| Sheets and stripes | В33 | GOST 4405-75, TU 14-1-1848-76 |
| Classification, nomenclature and general norms | В30 | GOST 5632-72 |
| Sectional and shaped rolling | В32 | GOST 5949-75, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-377-72, TU 14-1-3957-85, TU 14-1-595-73, TU 14-11-245-88 |
| Classification, nomenclature and general norms | В20 | OST 1 90005-91 |
| Bulls. Blanks. Slabs | В21 | OST 1 90176-75 |
| Bulls. Blanks. Slabs | В31 | OST 3-1686-90, OST 95-10-72 |
| Metal forming. Forgings | В03 | ST ЦКБА 010-2004 |
| Thermal and thermochemical treatment of metals | В04 | STP 26.260.484-2004, ST ЦКБА 016-2005 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Fe | Cu | V | Ti | Mo | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-595-73 | 0.9-1 | ≤0.02 | ≤0.03 | ≤0.7 | 17-19 | ≤0.8 | The rest | ≤0.3 | ≤0.2 | ≤0.2 | ≤0.3 | ≤0.2 |
| GOST 5632-72 | 0.9-1 | ≤0.025 | ≤0.03 | ≤0.8 | 17-19 | ≤0.8 | The rest | ≤0.3 | ≤0.2 | ≤0.2 | ≤0.3 | ≤0.2 |
Fe is the basis.
According to GOST 5632-72, the chemical composition is given for steel grade 95X18.
According to TU 14-1-595-73, the chemical composition is given for steel grade 95X18-III.
According to GOST 5632-72, the chemical composition is given for steel grade 95X18.
According to TU 14-1-595-73, the chemical composition is given for steel grade 95X18-III.
Mechanical characteristics
| Section, mm | t отпуска, °C | sT|s0,2, MPa | σB, MPa | d5, % | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa | HRC |
|---|---|---|---|---|---|---|---|---|
| Rolled steel. Quenching in oil from 1040 °C to + Vacation | ||||||||
| - | 200 | - | - | - | - | ≥265 | - | ≥59 |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 | ||||||||
| - | - | - | - | - | - | - | - | ≥55 |
| Rolled steel. Quenching in oil from 1050 °C, cold treatment at -70 °C to + Leave at 400 °C | ||||||||
| - | - | - | - | - | - | - | - | 58-59 |
| Rolled steel. Quenching in oil from 1040 °C to + Vacation | ||||||||
| - | 300 | - | - | - | - | ≥285 | - | ≥53 |
| Rolled steel. Quenching in oil from 1050 °C, cold treatment at -70 °C to + Leave at 400 °C | ||||||||
| - | - | - | - | - | - | 120-180 | - | 57-58 |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 | ||||||||
| - | - | - | - | - | - | - | - | 58-62 |
| Billet (forgings) OST 95-10-72. Quenching in oil with 1000-1060 °C + Vacation at 200-300 °C, cooling in oil or air (sample) | ||||||||
| ≤200 | - | - | - | - | - | - | - | 50-60 |
| Rolled steel. Quenching in oil from 1040 °C to + Vacation | ||||||||
| - | 400 | - | - | - | - | ≥245 | - | ≥56 |
| Rolled steel. Quenching in oil from 1050 °C, cold treatment at -70 °C to + Leave at 400 °C | ||||||||
| - | - | - | - | - | - | 120-220 | - | 56-57 |
| Blank pieces of pipe fittings according to ST CKBA 016-2005. Quenching from 1000-1050 °C in oil + Vacation at 200-300 °C, air cooling | ||||||||
| ≤60 | - | - | 1470-1666 | - | - | 29.4-49 | - | 56.5 |
| Rolled steel. Quenching in oil from 1040 °C to + Vacation | ||||||||
| - | 500 | - | - | - | - | ≥205 | - | ≥56 |
| Rolled steel. Quenching in oil from 1050 °C, cold treatment at -70 °C to + Leave at 400 °C | ||||||||
| - | - | - | - | - | - | 120-220 | - | 56-57 |
| Bars and rods, hot rolled, forged and polished in the delivery state after annealing at TU 14-1-595-73 | ||||||||
| - | - | - | - | - | - | ≤255 | - | |
| Rolled steel. Quenching in oil from 1050 °C + Vacation | ||||||||
| - | 150 | - | - | - | - | - | - | 59-64 |
| Bars and stripes. Heated up to 850-860 °C. Quenching from 1000-1070 °C in oil or air + cold treatment at minus 70-80 °C + vacation at 150-160 °C, air cooling | ||||||||
| ≤60 | - | - | 1980-2300 | - | - | ≥63 | - | 59 |
| Rolled steel. Quenching in oil from 1050 °C + Vacation | ||||||||
| - | 200 | - | - | - | - | - | - | 58-62 |
| Bars hot rolled and forged at STP 26.260.484-2004. Quenching in oil 1000-1050 °C + Vacation at 150-300 °C, air cooling | ||||||||
| - | ≥1900 | ≥2000 | ≥2 | ≥10 | ≥196 | - | - | |
| Rolled steel. Quenching in oil from 1050 °C + Vacation | ||||||||
| - | 300 | - | - | - | - | - | - | 55-59 |
| Rolled steel. Incomplete annealing at 730-790 °C (2-6 h exposure) | ||||||||
| ≤60 | - | ≥770 | ≥880 | ≥12 | ≥25 | - | - | 24-29 |
| Rolled steel. Quenching in oil from 1050 °C + Vacation | ||||||||
| - | 400 | - | - | - | - | - | - | 56-59 |
| Rolled steel. Full annealing at 885-920 °C (exposure 1-2 hours) | ||||||||
| ≤60 | - | ≥420 | ≥770 | ≥15 | ≥30 | - | - | - |
| Rolled steel. Quenching in oil from 1050 °C + Vacation | ||||||||
| - | 500 | - | - | - | - | - | - | 51-54 |
| Forming at OST 1 90176-75. Quenching in oil with 1010-1040 °C + Vacation at 200-300 °C, cooling in air or in oil | ||||||||
| - | - | - | - | - | - | - | ≥55 | |
| Rolled steel. Quenching in oil from 1050 °C + Vacation | ||||||||
| - | 600 | - | - | - | - | - | - | 41-44 |
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) |
Physical characteristics
| Temperature | Е, ГПа | r, кг/м3 | l, Вт/(м · °С) | a, 10-6 1/°С | С, Дж/(кг · °С) |
|---|---|---|---|---|---|
| 20 | 204 | 7750 | 24 | - | - |
| 100 | - | 7730 | - | 118 | 483 |
| 800 | - | 7540 | - | - | - |
| 200 | - | - | - | 123 | - |
| 300 | - | - | - | 127 | 483 |
| 400 | - | - | - | 131 | - |
| 500 | - | - | - | 131 | - |
| 700 | - | - | - | 134 | - |
A description of the physical symbols
| Name | Description |
|---|---|
| Е | The normal elasticity modulus |
| G | Modulus of elasticity shear torsion |
| r | Density |
| l | Coefficient of thermal conductivity |
| R | UD. the resistivity |
Technological properties
| Name | The value |
|---|---|
| Weldability | Does not apply to welded structures. |
| Propensity to temper brittleness | Inclined at the tempering temperature of 450 to 600 °C. |
| Forging temperature | Start - 1180 °C, the end - 850 °C. the cross Sections up to 700 mm is subjected to annealing by recrystallization, leave. |
| Flock-sensitive sensitivity | Minor. |
| Workability by cutting | In the annealed condition with NV 212-217 and blower SB=700 MPa Kn TV.SPL.=0,86 Kn b.St.=0,35. To improve the machinability and the hardness HB ≤ 240 of the workpiece is subjected to annealing at 740-780 °C for 2-6 h with air cooling. |
| Macrostructure and contamination | Pollution bars nemetallicheskie inclusions on the other 14-1-595-73 shall not exceed (in points, not more): for bars up to 20 mm inclusive, for oxides and silicates in 1.5 sulphides - 1,0, globular - 1,0; for bars over 20 mm to 110 mm inclusive - on oxides and silicates - 1,5, sulphides and 1.5, globular - 1,5; for bars more than 110 to 150 mm inclusive, for oxides and silicates - 2,0, sulphides - 2,0, globular - 2,0. In assessing the macrostructure of steel shall be accepted: Central porosity ≤1.0 points; total porosity ≤1.0 points; exudation square ≤0.50 points. |
| Microstructure | Hot rolled and forged bars sizes up to 11 mm inclusive are controlled by the presence of carbide heterogeneity. |
| Features of heat treatment | Steel products can be subjected to hardening, leave, annealing. The quenching and tempering of the products is done to achieve: a) maximum corrosion resistance; b) the specified level of mechanical properties. Hardening of steel products is carried out in oil with 1000-1050 °C. the holding Time at the heating for hardening to products with a wall thickness or diameter up to 10 mm - 20 min., above 10mm-20 min + 1 min per 1 mm maximum thickness. 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. Products made of 95X18 steel after quenching is subjected to release on mode: heating to 150-300 °With, exposure for 1-3 hours, cooling in air. To alleviate steel of grade 95X18 produce full annealing at 880-920 °C, 1-2 h. (HB 95-99) or a partial annealing at 730-790 °C. 2-6 h (HRC 22-27). Not allowed vacation at 450-550 °C, Since this leads to a decrease in toughness. Workpiece to improve the mechanical workability is subjected to intermediate annealing at 600-760 °C for 2-4 h. |
