EN 10250-3: 2000 Open steel die forgings for general engineering purposes. Alloy special steels
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. 30CrMoV9 used components such as fasteners, couplings, scres, bushings, studs, fittings, value stems, roller, wear rings.
| C | Si | Mn | Ni | P | S | Cr | Mo | V |
| 0.26 – 0.34 | max 0.4 | 0.4-0.7 | max 0.6 | max 0.035 | max 0.035 | 2.3-2.7 | 0.15-0.25 | 0.1-0.2 |
| EU | Russia | Inter |
| EN | GOST | ISO |
| 30CrMoV9 | 30KH3MF | 30CrMoV9 |
| 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) |
- Tensile Strength:min 800 N/mm2
- Yield Strength:min. 590N/mm2
- Elongation:min.12 %(l)
- Kv-Imapct value:min.35J (l)
- +A Soft annealed/Soft annealing
- +N Normalized/Normalizing
- +QT Quenched and Tempered
- +U Untreated
- +SR Stress Relieved
Normalizing:860℃-900℃,Cool in air
Soft Annealing:680℃-720℃,Cool slowly
Hardening:850 – 880°C,oil or polymer,840-850°C,water
Tempering:570°C – 680°C, cool in still air
