Steel 30KHGSN2A (30ХГСНА)
Steel 35KhSN3M1A (VKS-8)
Steel 30Kh2GSN2VM (30Kh2GSN2M1; VL-1)
Steel 30Kh2GSNVM (VL-1D)
Steel 30Х2Н2СВМФА (VKS-3)
Steel 30KhGSN2A (30KhGSNA)
Steel 30KhGSN2MA (30KhGSNMA)
Steel 30ХН3М1ФА (30ХН3М1Ф)
Steel 30ХН3М2ФА (30ХН3М2Ф)
Steel 32KhN8M1FK5A (VKS-6)
Steel 34KhMA (34KhM)
Steel 34KhN3MA (0KhN3M)
Steel 35KhMA (35KhMAR)
Steel 35KhN1M2FA
Steel 35KHN3MFA (35KHN3MFAR)
Steel 35ХС2Н3М1ФА (VKS-9)
Steel 28ХНН3МФА (28ХН3МФ)
Steel 36KHN3MFA (36KHN3MF)
Steel 38Kh3SNMVFA (SP38)
38KhMFYUA steel
38KhN3MFA steel (38KhN3MF)
40GMFR steel
Steel 40KhN2SVA (EI643)
Steel 40KhN2SMA (EI643M)
Steel 42Kh2GSNM (VKS-1)
43Kh3SNMVFA steel (SP43)
Steel 45Г15Н9Х2ЮФ (EP769)
45Kh3NM2FA steel
Steel АЦ28ХГН2АФБ
Steel АЦ28ХГН3ФТ
B2G steel
X11MNAFB steel
20KhGSNM steel
Steel 01N17K12M5T (EP845; VKS-240)
Steel 02N18K9M5T (EP637A; VKS-210)
Steel 03N18K8M5T (VKS-170; EK21)
Steel 03N19K6M5TR (EP631)
Steel 03Cr14H7V
Steel 08Х15Н25Т2МФР (EP674)
Steel 09Х16НМ2Д (EP887; VNS28)
Steel 120G13 (EI256)
12Kh3GNMFBA steel
Steel 15Х16Н3КАМФ2 (VNS-47; EK81)
15Kh2GMF steel
15Kh2NMFA steel
Steel 16X16H3MAD (EP811; VSN21)
Alloy 20ХГСН2МФА (DI107)
Steel 28Kh3SNMVFA (SP28; EP326A)
Steel 25Х12Н2В2М2Ф (EP311; VNS-6)
Steel 25Х20Н9В2М (EP466)
Steel 25Kh2GNTA
Steel 25Х2ГНТРА
Steel 25Х2Н4МФА
Steel 25Kh2NMF (25Kh2NMFA)
Steel 25KhGSNMA
Steel 25KhN3MFA (25KhN3MFAR)
Steel 25ХСНВФА (VP25)
Steel 26ХН3М2ФА (26ХН3М2ФАA)
Steel 26KhN3MF (26KhN3MFA)
Steel 26KhN4MF (26KhN4MFA)
Steel 27ХН3М2ФА (27ХН3М2Ф)
Steel 27ХН3МФА (27ХН3МФ)
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 30ХГСН2А |
| Designation GOST Latin | 30XGCH2A |
| Transliteration | 30HGSN2A |
| The chemical elements | 30CrMnСН2 |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 30ХГСНА |
| Designation GOST Latin | 30XGCHA |
| Transliteration | 30HGSNA |
| The chemical elements | 30CrMnСН |
Description
30KHGSN2A steel is used: for the manufacture of gears, flanges, Cams, fingers, rollers, axles, pins and other critical heavily loaded parts; the manufacture of the most critical parts of the aircraft chassis, wings and center section of the plane, joints, flanges of the spar and bolts; pressed extra virgin profiles, long products and structural shapes, sheets and strips, tubes.
Note
High-strength steel, structural, high quality, bromocinnamaldehyde.
Standards
| Name | Code | Standards |
|---|---|---|
| Sectional and shaped rolling | В32 | GOST 1051-73, GOST 4543-71, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 14955-77, TU 14-1-1885-85, TU 14-1-2118-77, TU 14-1-2213-77, TU 14-1-658-73, TU 14-1-950-74, TU 1-9-30-82, TU 14-1-4247-87, TU 14-1-4020-85, TU 14-1-3238-81, TU 14-11-245-88, TU 14-1-3238-2006, TU 14-136-367-2008 |
| Sheets and stripes | В33 | GOST 11268-76, GOST 11269-76, TU 14-1-3422-82 |
| Sectional and shaped rolling | В22 | GOST 1133-71, GOST 8319.0-75, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006, TU 1-9-1046-79 |
| Pipes steel and connecting parts to them | В62 | GOST 21729-76, TU 14-3-674-78, TU 14-3-675-78 |
| Sheets and stripes | В23 | GOST 82-70, GOST 103-2006 |
| Classification, nomenclature and general norms | В20 | OST 1 90005-91 |
| Bulls. Blanks. Slabs | В31 | OST 3-1686-90, TU 14-1-4944-90, TU 14-1-4992-91, TU 1-92-156-90 |
| Norms of calculation and design | В02 | PI 1.2.053-78 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | V | Ti | Mo | W |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-1885-85 | 0.27-0.33 | ≤0.011 | ≤0.015 | 1-1.2 | 0.9-1.2 | 0.9-1.2 | 1.4-1.8 | The rest | ≤0.25 | - | - | - | - |
| TU 14-1-950-74 | 0.27-0.33 | ≤0.025 | ≤0.025 | 1-1.3 | 0.9-1.2 | 0.9-1.2 | 1.4-1.8 | The rest | ≤0.25 | ≤0.05 | ≤0.03 | ≤0.15 | ≤0.2 |
| GOST 4543-71 | 0.27-0.34 | ≤0.025 | ≤0.025 | 1-1.3 | 0.9-1.2 | 0.9-1.2 | 1.4-1.8 | The rest | ≤0.3 | ≤0.05 | ≤0.03 | ≤0.15 | ≤0.2 |
| GOST 21729-76 | 0.27-0.34 | ≤0.011 | ≤0.015 | 1-1.2 | 0.9-1.2 | 0.9-1.2 | 1.4-1.8 | The rest | ≤0.2 | ≤0.05 | ≤0.03 | ≤0.15 | ≤0.2 |
| TU 14-3-674-78 | 0.28-0.34 | ≤0.005 | ≤0.025 | 0.8-1.1 | 0.8-1.1 | 0.9-1.2 | 1.8-2.1 | The rest | - | - | - | - | - |
| GOST 11268-76 | 0.27-0.34 | ≤0.025 | ≤0.025 | 1-1.3 | 0.9-1.2 | 0.9-1.2 | 1.4-1.8 | The rest | ≤0.25 | ≤0.05 | ≤0.03 | ≤0.15 | ≤0.2 |
Fe is the basis.
GOST 4543-71 regulates the content of high-quality steel: P≤0,025%; S≤0.015%; Сu≤0.25%.
According to TU 14-1-3238-81 for steel grade 30ХГСН2А-СШ (30ХГСНА-СШ) the content of S≤0,015%.
According to TU 14-3-674-78 the chemical composition is given for steel 30ХГСН2А-ВД.
According to GOST 21729-76 the chemical composition is given for steel 30ХГСН2А-ВД; steel grade 30ХГСН2А must have a chemical composition in accordance with GOST 4543. When smelting steel skapprotsessom the mass fraction of copper should be ≤ 0,25% in steels of grades 30ХГСН2А and 30ХГСН2А-ВД. The maximum deviation in chemical composition is in accordance with GOST 4543. For steel grade 30ХГСН2А-ВД the total mass fraction of sulfur and phosphorus should not exceed 0.22%.
According to TU 14-1-1885-85 the chemical composition is given for steel 30ХГСН2А-ВД. In steel, the sum of the content of phosphorus and sulfur should not exceed 0.022%. To ensure the required grain size, it is allowed to introduce vanadium in the steel smelting at the rate of its content in steel no more than 0.10%, the content of which in steel is not determined. The presence of tungsten to 0.20%, molybdenum to 0.15%, titanium to 0.030% is not a defect. The permissible deviation in the content of manganese in steel is + 0.010 / -0.020%, in carbon content + 0.010%, in sulfur and phosphorus content, provided that their total content is not more than 0.022%. For steel certified by the Quality mark, the sulfur content in steel shall not exceed 0.010%, while deviations from the content of sulfur and phosphorus in steel are allowed, provided that their total content is not more than 0.021%.
GOST 4543-71 regulates the content of high-quality steel: P≤0,025%; S≤0.015%; Сu≤0.25%.
According to TU 14-1-3238-81 for steel grade 30ХГСН2А-СШ (30ХГСНА-СШ) the content of S≤0,015%.
According to TU 14-3-674-78 the chemical composition is given for steel 30ХГСН2А-ВД.
According to GOST 21729-76 the chemical composition is given for steel 30ХГСН2А-ВД; steel grade 30ХГСН2А must have a chemical composition in accordance with GOST 4543. When smelting steel skapprotsessom the mass fraction of copper should be ≤ 0,25% in steels of grades 30ХГСН2А and 30ХГСН2А-ВД. The maximum deviation in chemical composition is in accordance with GOST 4543. For steel grade 30ХГСН2А-ВД the total mass fraction of sulfur and phosphorus should not exceed 0.22%.
According to TU 14-1-1885-85 the chemical composition is given for steel 30ХГСН2А-ВД. In steel, the sum of the content of phosphorus and sulfur should not exceed 0.022%. To ensure the required grain size, it is allowed to introduce vanadium in the steel smelting at the rate of its content in steel no more than 0.10%, the content of which in steel is not determined. The presence of tungsten to 0.20%, molybdenum to 0.15%, titanium to 0.030% is not a defect. The permissible deviation in the content of manganese in steel is + 0.010 / -0.020%, in carbon content + 0.010%, in sulfur and phosphorus content, provided that their total content is not more than 0.022%. For steel certified by the Quality mark, the sulfur content in steel shall not exceed 0.010%, while deviations from the content of sulfur and phosphorus in steel are allowed, provided that their total content is not more than 0.021%.
Mechanical characteristics
| Section, mm | t отпуска, °C | sT|s0,2, MPa | σB, MPa | d5, % | d10 | y, % | kJ/m2, кДж/м2 | Brinell hardness number, MPa | HRC |
|---|---|---|---|---|---|---|---|---|---|
| Pipe seamless cold drawn, cold rolled and toplocatie, heat-treated in the delivery condition according to GOST 21729-76 | |||||||||
| - | - | ≥588 | ≥15 | - | - | - | - | - | |
| Quenching in water from 900 °C to + leave (indicate the cutting direction of sample) | |||||||||
| ≤100 | - | 1070-1170 | 1260-1290 | 8-10 | - | 29-35 | - | - | - |
| Rolled steel. Quenching in oil from 900 °C + vacation, cooling in oil | |||||||||
| - | 200 | ≥1500 | ≥1900 | ≥15 | - | ≥55 | - | - | ≥52 |
| A sample with diameter 10 mm, length 50 mm, laminated. The rate of deformation of 20 mm/min strain Rate 0,007 1/s. | |||||||||
| - | - | ≥98 | ≥115 | ≥33 | - | ≥77 | - | - | - |
| Quenching from 900 °C, NTMO: 550 °C, the deformation in 3 passes on 63 % (25%, 25%, 13% with intermediate heating). Cooling in oil. Vacation at 275 °C (6 h exposure) | |||||||||
| - | - | ≥2130 | ≥2310 | - | - | - | ≥196 | - | - |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 | |||||||||
| - | - | - | 1370-1570 | - | - | - | - | 388-445 | 41-45.5 |
| Steel hot-rolled sheet (4-60 mm) 4-th and 5-th categories. Quenching in oil from 900±15 °C, the release during 200-300 °C, air cooling | |||||||||
| - | - | ≥1570 | ≥9 | - | - | ≥590 | - | - | |
| Quenching in water from 900 °C to + leave (indicate the cutting direction of sample) | |||||||||
| 100-150 | - | 1030-1050 | 1090-1150 | 3-5 | - | 9-10 | - | - | - |
| Rolled steel. Quenching in oil from 900 °C + vacation, cooling in oil | |||||||||
| - | 300 | ≥1500 | ≥1800 | ≥15 | - | ≥53 | - | - | ≥51 |
| A sample with diameter 10 mm, length 50 mm, laminated. The rate of deformation of 20 mm/min strain Rate 0,007 1/s. | |||||||||
| - | - | ≥64 | ≥81 | ≥51 | - | ≥77 | - | - | - |
| The cross section of 20 mm., vtmo: deformation temperature 960 °C, the degree of deformation of 20 %. Vacation at 270 °C (exposure 2 hours) | |||||||||
| - | - | - | ≥1800 | ≥10 | - | ≥45 | ≥638 | - | 47-51 |
| Flats on the other 14-1-4118-2004 | |||||||||
| ≤3.9 | - | - | 589-834 | ≥19 | ≥15 | - | - | - | - |
| Quenching in water from 900 °C to + leave (indicate the cutting direction of sample) | |||||||||
| 150-250 | - | 1000 | 880-1080 | 4 | - | 7-8 | - | - | - |
| Rolled steel. Quenching in oil from 900 °C + vacation, cooling in oil | |||||||||
| - | 400 | ≥1350 | ≥1500 | ≥15 | - | ≥52 | - | - | ≥49 |
| A sample with diameter 10 mm, length 50 mm, laminated. The rate of deformation of 20 mm/min strain Rate 0,007 1/s. | |||||||||
| - | - | ≥42 | ≥49 | ≥53 | - | ≥90 | - | - | - |
| Bars and strip hot rolled and forged. Quenching in oil with 890-910 °C + Vacation at 200-300 °C, air cooling | |||||||||
| - | ≥1375 | ≥1570 | ≥9 | - | ≥45 | ≥590 | ≤444 | - | |
| Quenching in water from 900 °C to + leave (indicate the cutting direction of sample) | |||||||||
| ≤100 | - | 1000-1020 | 1190-1230 | 16-17 | - | 43-54 | - | - | - |
| Rolled steel. Quenching in oil from 900 °C + vacation, cooling in oil | |||||||||
| - | 500 | ≥1150 | ≥1300 | ≥16 | - | ≥50 | - | - | ≥42 |
| A sample with diameter 10 mm, length 50 mm, laminated. The rate of deformation of 20 mm/min strain Rate 0,007 1/s. | |||||||||
| - | - | ≥25 | ≥32 | ≥67 | - | ≥100 | - | - | - |
| Rods made of steel 30KHGSN2A (30ХГСНА) TU 14-1-1885-85. Quenching in oil with 890-910 °C + Vacation at 200-300 °C, air cooling. In the graph KCU KCU values are shown along the fiber/KCU across the grain | |||||||||
| - | ≥1375 | ≥1670 | ≥9 | - | ≥45 | ≥588/343 | ≤444 | - | |
| Quenching in water from 900 °C to + leave (indicate the cutting direction of sample) | |||||||||
| 100-150 | - | 940-980 | 1160-1170 | 9-13 | - | 26-36 | - | - | - |
| Rolled steel. Quenching in oil from 900 °C + vacation, cooling in oil | |||||||||
| - | 600 | ≥900 | ≥1000 | ≥20 | - | ≥55 | - | - | ≥37 |
| A sample with diameter 10 mm, length 50 mm, laminated. The rate of deformation of 20 mm/min strain Rate 0,007 1/s. | |||||||||
| - | - | ≥15 | ≥22 | ≥69 | - | ≥100 | - | - | - |
| Rods made of steel 30KHGSN2A (30ХГСНА) TU 14-1-1885-85. Quenching in oil with 890-910 °C + Vacation at 200-300 °C, air cooling. In the graph KCU KCU values are shown along the fiber/KCU across the grain | |||||||||
| - | ≥1375 | ≥1620 | ≥9 | - | ≥45 | ≥588/343 | ≤444 | - | |
| Quenching in water from 900 °C to + leave (indicate the cutting direction of sample) | |||||||||
| 150-250 | - | 940-960 | 1130-1170 | 15-18 | - | 23-41 | - | - | - |
| A sample with diameter 10 mm, length 50 mm, laminated. The rate of deformation of 20 mm/min strain Rate 0,007 1/s. | |||||||||
| - | - | ≥11 | ≥17 | ≥77 | - | ≥100 | - | - | - |
| Bars and rods of steel treated in the ladle a synthetic slag in the delivery condition on the other 14-1-658-73. Samples of the cross | |||||||||
| - | - | - | ≥5 | - | ≥28 | ≥294 | - | - | |
| Quenching in oil 900 °C, oil + leave (indicate the cutting direction of sample) | |||||||||
| ≤100 | - | 470-490 | 780-810 | ≥20 | - | 52-60 | - | - | - |
| Rolled steel. Quenching in oil from 890 °C to + vacation at 360 °C, cooling in oil | |||||||||
| - | - | - | ≥1550 | - | ≥9 | ≥52 | - | - | - |
| Quenching in oil 900 °C, oil + leave (indicate the cutting direction of sample) | |||||||||
| 100-150 | - | 480-490 | 710-780 | 15-20 | - | 36-51 | - | - | - |
| Rolled steel. Quenching in oil from 890 °C to + vacation at 360 °C, cooling in oil | |||||||||
| - | - | - | ≥1550 | - | ≥9 | ≥52 | - | - | - |
| Quenching in oil 900 °C, oil + leave (indicate the cutting direction of sample) | |||||||||
| 150-250 | - | 500-520 | - | 16-17 | - | 46-51 | - | - | - |
| Rolled steel. Quenching in oil from 890 °C to + vacation at 360 °C, cooling in oil | |||||||||
| - | - | - | ≥1550 | - | ≥10 | ≥53 | - | - | - |
| Quenching in oil 900 °C, oil + leave (indicate the cutting direction of sample) | |||||||||
| ≤100 | - | 540-570 | 800-820 | 20-23 | - | 64-66 | - | - | - |
| Rolled steel. Quenching in oil from 890 °C to + vacation at 360 °C, cooling in oil | |||||||||
| - | - | - | ≥1400 | - | ≥10 | ≥54 | - | - | - |
| Quenching in oil 900 °C, oil + leave (indicate the cutting direction of sample) | |||||||||
| 100-150 | - | 500-520 | 780 | 20-23 | - | 64 | - | - | - |
| Rolled steel. Quenching in oil from 890 °C to + vacation at 360 °C, cooling in oil | |||||||||
| - | - | ≥710 | ≥860 | - | ≥21 | ≥72 | - | - | - |
| Quenching in oil 900 °C, oil + leave (indicate the cutting direction of sample) | |||||||||
| 150-250 | - | 500-520 | - | 18-23 | - | 58-65 | - | - | - |
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 |
| d10 | Elongation after rupture |
| y | The relative narrowing |
| kJ/m2 | Toughness |
| HRC | Rockwell hardness (indenter diamond spheroconical) |
Physical characteristics
| Temperature | Е, ГПа | G, ГПа | r, кг/м3 | l, Вт/(м · °С) | R, НОм · м | a, 10-6 1/°С | С, Дж/(кг · °С) |
|---|---|---|---|---|---|---|---|
| 0 | 195 | 77 | - | - | - | - | - |
| 20 | 195 | - | 7770 | 285 | 440 | - | - |
| 300 | 180 | 70 | - | 314 | - | 13 | 587 |
| 400 | 168 | 65 | - | - | - | 149 | - |
| 500 | 135 | 51 | - | - | - | - | - |
| 100 | - | - | - | 294 | - | 106 | 503 |
| 200 | - | - | - | 306 | - | 112 | 545 |
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 | Difficult weldability. |
| Propensity to temper brittleness | Inclined. |
| Forging temperature | Start - 1200 °C, the end - of 800 °C. the Cooling sections 60 mm is more slow, less air in the stacks. |
| Flock-sensitive sensitivity | Sensitive. |
| Macrostructure and contamination | Macrostructure of steel when testing for the breaks in the longitudinal direction and transverse templeto selected from rolled, should not have shrinkage, porosity, bubbles, cracks, delamination, inclusions and placenow and defects of fracture, listed in Annex 3 GOST 10243. The Central porosity, point heterogeneity and phase separation in the square should not exceed 1 points; layer-by-layer crystallization and the bright loop - 3 points reference scales GOST 10243. All other defects under GOST 10243, are not allowed. Pollution steel non-metallic inclusions should be according to the average score is not higher (in points): oxides of point 1,5, 2,0 stroke oxides, silicates fragile 1,0, 1,0 silicates plastic, silicates, non-deformed 2,5, 2,5 sulfides, nitrides stroke and point 1,0. |
