EN47 Spring Steel
EN 47 is a chrome-vanadium based steel, EN 47 can be oil hardened and tempered if required. This process gives the material a good level of abrasion resistance with excellent toughness, these characteristics make it a good choice for applications exposed to stress, shock, and vibration.
This material is commonly used in the automotive industry for high-intensity applications such as crankshafts, leaf springs etc. This combined with a relatively low cost when compared with other alloy steels, makes the material quite an attractive option.
EN47 Applications
This material is commonly used in the automotive industry for high-intensity applications such as crankshafts, leaf springs etc. This combined with a relatively low cost when compared with other alloy steels, makes the material quite an attractive option.
EN47 Chemical Properties
| Carbon | Silicon | Managnese | Phosphorous | Chromium | Sulpur | Vanadium |
| 0.45-0.55% | 0.50% | 0.50-0.80% | 0.06% | 0.80-1.20% | 0.06% | 0.15% |
To anneal EN47 heat it to between 820-840 Celsius, ensure that the material is held at this temperature for at least 2 hours or one hour for every 25mm of thickness. Allow to cool in the furnace slowly..EN47 Annealing
EN47 Hardening
Hardening EN47 should be done in stages; first heat to between 650-700 Celsius allow time for it to soak thoroughly, then to between 830-860 Celsius again allow time for it to soak. Quench the steel in oil.
EN47 Tempering
Related Standards:
BS 970
ASTM A829
50CrV4
1.8159
