Reference standard
- EN 10085: 2001 Nitriding steel. Technical delivery conditions
- EN 10250-3: 2000 Open steel die forgings for general engineering purposes. Alloy special steels
Application
- 40CrMoV13-9 is the EN chemical designation. It has a fairly low thermal conductivity among EN wrought alloy steels. In addition, it has a very high embodied energy and a fairly high base cost.
- Moulds for manufacturing plastic materials.
- suitable for chemical graining.
- Die blocks and punches.
- Prototype dies for light alloy pressure casting.
Chemical composition
| C | Si | Mn | P | S | Cr | Mo | V |
| 0.36-0.43 | max 0.4 | 0.4-0.7 | max 0.025 | max 0.035 | 3-3.5 | 0.8-1.1 | 0.15-0.25 |
Equivalent Grades
| EU | Germany | England | Inter |
| EN | DIN,WNr | BS | ISO |
| 40CrMoV13-9 | 40CrMoV13-9 | 897M39 | 31CrNiMo8 |
Size Tolerance
| Surface Finish | Size Tolerance | Length |
| Black For Forged condition | (0，+5 mm) | Multiple Length/Fixed Length |
| Black For Rolled condition | (0，+1mm) | |
| Rough Turned | (0，+3mm) |
Mechanical properties
- Tensile Strength:min 950 N/mm2
- Yield Strength:min. 750 N/mm2
- Elongation:min.11%(l)
- Kv-Imapct value:min.40J (l)a
Heat Treatment Conditions
- +A Soft annealed/Soft annealing
- +N Normalized/Normalizing
- +QT Quenched and Tempered
- +U Untreated
- +SR Stress Relieved
Normalizing:870℃-880℃,Cool in air
Soft Annealing:680℃-720℃
Hardening:870℃-970°C,oil or polymer,840-850°C,water
Tempering:580°C -700°C, cool in still air
Peeled and hot-rolled bars 40CrMoV13-9, 1.8523
