DIN 1.2343 Steel (X37CrMoV5-1) Equivalent & Properties
DIN 1.2343 Steel (Material X37CrMoV5-1)
DIN 1.2343 steel is a hot work tool steel, the US equivalent material is H11 steel, which has excellent machinability and polishability, good high toughness and plasticity, high wear resistance at high and low temperatures and overall hardening performance.
The application of steel 1.2343 ESU (X37CrMoV5-1) is die casting molds for light metal processing, cylinders and pistons on cold chamber machines, metal extrusion tools, etc.
1.2343 Steel Properties
The tables below show 1.2343 steel properties such as chemical composition, physical and mechanical properties, etc.
Chemical Composition
Based on cast analysis
| Chemical Composition, % | |||||||||
| Standard | Steel Number (Name) | C | Si | Mn | P, ≤ | S, ≤ | Cr | Mo | V |
| EN ISO 4957 | 1.2343 (X37CrMoV5-1) | 0,33-0,41 | 0,90-1,20 | 0,25-0,50 | 0,03 | 0,02 | 4,8-5,5 | 1,10-1,50 | 0,30-0,50 |
| DIN 17350 | 1.2343 (X38CrMoV5-1) | 0,36-0,42 | 0,80-1,20 | 0,30-0,50 | 0,03 | 0,03 | 4,8-5,5 | 1,10-1,40 | 0,25-0,50 |
Physical Properties
| Physical Properties | |
| Density, g/cm3 | 7,85 |
| Electrical resistivity, μΩ·m | 0,52 (20 °C) |
| Specific heat capacity, J/(kg·K) | 460 (20 °C) |
| Thermal conductivity, (W/m·K) | 15,0 (20 °C) |
| Thermal conductivity, (W/m·K), annealed | 29,8 (20 °C) |
| 30,0 (350 °C) | |
| 33,4 (700 °C) | |
| Thermal conductivity, (W/m·K), hardened and tempered | 26,8 (20 °C) |
| 27,3 (350 °C) | |
| 30,3 (700 °C) | |
| Modulus of elasticity, GPa | 210 |
| Mean coefficient of thermal expansion, (10-6/K) | 11,8 (20-100 °C) |
| 12,4 (20-200 °C) | |
| 12,6 (20-300 °C) | |
| 12,7 (20-400 °C) | |
| 12,8 (20-500 °C) | |
| 12,9 (20-600 °C) | |
| 12,9 (20-700 °C) | |
Mechanical Properties
DIN 1.2343 tensile strength: > 1400 MPa (<150 °C).
Hardness at different tempering temperatures.
| Tempering temperature (°C) | Hardness (HRC) |
| 50 | 53,7 |
| 100 | 53 |
| 200 | 52 |
| 300 | 52,5 |
| 400 | 54,5 |
| 450 | 56 |
| 500 | 56 |
| 550 | 52 |
| 600 | 46 |
| 650 | 39 |
| 700 | 31 |
Heat Treatment
Critical temperatures (°C): 830 (Ac1b), 900 (Ac1e), 340 (Ms)
Full Annealing: 870 °C-900 °C (1600 °F – 1650 °F); Hardness: ≤229 HBW (annealed)
Material 1.2343 hardening: Austenitizing temperature 1020±10 °C; Quenching Agent: Oil; The corresponding tempering temperature and HRC hardness can be found above.
DIN EN 1.2343 Steel Equivalent Grades
The equivalent material of 1.2343 steel (1.2343 ESR) is listed in the following table, e.g. ASTM standard, ISO standard, Chinese GB standard, Japanese JIS standard.
| DIN 1.2343 Steel Equivalent Grades | |||||||||
| European Union | US | ISO | China | Japan | |||||
| Standard | Steel Name (Material Number) | Standard | Grade (UNS) | Standard | Steel Name | Standard | Grade | Standard | Grade |
| EN ISO 4957 | X37CrMoV5-1 (1.2343) | ASTM A681 | H11 | ISO 4957 | X37CrMoV5-1 | GB/T 1299 | 4Cr5MoVSi | JIS G4404 | SKD6 |
Related materials: En24, En8 (BS970 080M40), DC01 (1.0330), Werkstoff 1.2343
