Steel 19Х20Н4АМ3Д2С (ЭК7)
Steel 12Х11В2МФ (ЭИ756)
Steel 08Х21Н6М2Т (EP54)
Steel 10Х12Н3М2ФА (ЦД-М)
Steel 10Х12НД (0Х12НД)
Steel 10Х13Г12БС2Н2Д2 (DI59)
Steel 10X18G14AN4 (EP197; X18G14AN4)
Steel 10Х32Н8 (EP263; Х32Н8)
Steel 10Х9МФБ (DI82)
08X14F steel
Steel 12X13 (1X13)
Steel 12X18H10T (X18H10T)
Steel 12Х18Н12Т (Х18Н12Т)
12X18H9SMR steel (EP414; Х18Н9СМР)
Steel 12Х18Н9Т (Х18Н9Т)
Steel 16Х20К6Н2МВФ (EP768; VNS-22)
Steel 19Х20Н4АМ3Д2С (EC7)
Steel 90G29Yu9VBM (DI38; 90G29Yu9VMBF; DI38F)
Steel 03Х24Н6АМ3 (ЗИ130)
Steel 015Х14Н19С6Б (ChS110)
Steel 015Х20Н25Г2Б (EP754)
Steel 02Х24Н6АМ3 (DI91)
Steel 03N18K9M5T (EP637; MS200)
Steel 03Х16Н15М3Б (026Х16Н15М3Б; ЭИ844Б)
Steel 03Х18Н9Т (Х18Н9Т)
Steel 03Х19Н15Г6М2АВ2 (ChS39)
Steel 03Х21Н32М3Б (EP864; ČS33)
Steel 08Х20Н5АГ12МФ (DI8)
Steel 03Х9К14Н6М3Д (EP921; 03Х9К14Н6М3ДФ)
Steel 04Х11Н9М2Д2 (EP832; 04Х11Н9М2Д2ТЮ)
Steel 04Х13Н4АГ20 (ChS52)
Steel 04Х14К13Н4М3ТВ (EP767)
Steel 05Х15Н9Г6АМ (ChS31)
Steel 05Х21Н12Г2БРч (DI94)
Steel 07X13AG20 (ChS46)
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 19Х20Н4АМ3Д2С |
| Designation GOST Latin | 19X20H4AM3D2C |
| Transliteration | 19H20N4AM3D2S |
| The chemical elements | 19Cr20Н4NMo3Cu2С |
| Name | The value |
|---|---|
| Designation GOST Cyrillic | ЭК7 |
| Designation GOST Latin | EK7 |
| Transliteration | EhK7 |
| The chemical elements | - |
Description
19Х20Н4АМ3Д2С steel is used: for the production of billets for re-rolling and hot-rolled steel intended for the manufacture of parts for special equipment operating in sea water and in areas with a Maritime climate.
Standards
| Name | Code | Standards |
|---|---|---|
| Bulls. Blanks. Slabs | В31 | TU 14-1-1213-75, TU 14-1-3640-83 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | N | Mo | Ce |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TU 14-1-3640-83 | 0.17-0.22 | ≤0.02 | ≤0.035 | 0.3-0.8 | 19-20.5 | 1.1-1.5 | 4.3-4.9 | The rest | 1.9-2.5 | 0.11-0.16 | 2.7-3.2 | ≤0.02 |
Fe is the basis.
According to TU 14-1-3640-83, the chemical composition is presented for steel grade 19Х20Н4АМ3Д2С (ЭК7). In the finished metal, deviations from the mass fraction of elements are allowed: by carbon ± 0.010%, for silicon +0.20%, for manganese -0.20%, for nickel -0.30%, for molybdenum ± 0.10%, for nitrogen +0.030%. The calculated mass fraction of cerium is established by the technological instruction and its residual content in the metal is not determined by chemical analysis. In the steel electroslag remelting brand 19H20N4AM3D2S-Sh (EC7-SH), the mass fraction of sulfur should not exceed 0.015%.
According to TU 14-1-3640-83, the chemical composition is presented for steel grade 19Х20Н4АМ3Д2С (ЭК7). In the finished metal, deviations from the mass fraction of elements are allowed: by carbon ± 0.010%, for silicon +0.20%, for manganese -0.20%, for nickel -0.30%, for molybdenum ± 0.10%, for nitrogen +0.030%. The calculated mass fraction of cerium is established by the technological instruction and its residual content in the metal is not determined by chemical analysis. In the steel electroslag remelting brand 19H20N4AM3D2S-Sh (EC7-SH), the mass fraction of sulfur should not exceed 0.015%.
