EN- 47 spring steel / AISI 6150
EN- 47 spring steel / AISI 6150
Specification
En-47 is a chrome-vanadium based steel, it 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.
Application
This material is commonly used in the automotive industry for high-intensity applications such as crankshafts, leaf springs, automobile locomotive spring, tractors, spindles and pumps, motor gear, knuckles etc. This combined with a relatively low cost when compared with other alloy steels, makes the material quite an attractive option.
Chemical Analysis %
| C | Mn | Cr | Si | V | P | S |
|---|---|---|---|---|---|---|
| 0.45-0.55 | 0.50-0.80 | 0.80-1.20 | 0.25-0.35 | 0.20 MAX | 0.050 Max | 0.050 Max |
Delivery condition
Annealed 240 HB max
Heat Treatment
Annealed 240 HB max
Heat Treatment
| Soft Annealing | Cooling | Stress Relieving | Hardening | Quenching | Hardness after quenching HRC |
|---|---|---|---|---|---|
| 820°-860°C | Furnace | 820°-840°C | 830°-870°C | Air, oil 830°-860°C | 56 |
Tempering °C
| Tempering°C | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
|---|---|---|---|---|---|---|---|
| HRC | 56 | 53 | 50 | 49 | 46 | 41 | 39 |