Chrome Vanadium Collet Steels
Home – Chrome Vanadium Collet
Our Stocks are indicated in the tables below. Standard sizes not in our stocks can be requested
EN-47 STEELS
Approximate Other Equivalents
Is : T55Cr70V15 VISL : M – CrV AISI : 5152 & 5155
DIN : 50CrV4 & 58CrV4
APPLICATION
Used in Oil Hardening Spring Steel having deep Hardenability than Silicon Manganeses Spring steels. Suitable for High and Heavy duty valve & leaf springs for Heavier Engine valve Springs. It is not as susceptible to decarburizations as Billets of Silicon Manganese Spring Steel & other Similar Grades.
Our Colour Code: WHITE / BLACK
LIST OF STANDARD SIZES
- Round: Ø 12mm – Ø 200mm
OUR STOCKS
- Round: Ø 16mm – Ø 150mm
| QUALITY | C | Si | Mn | Cr | V | P & S |
|---|---|---|---|---|---|---|
| EN – 47 | 0.5 | 0.1 | 0.5 | 0.9 | 0.15 | 0.055 |
| EN – 47 | 0.55 | 0.35 | 0.8 | 1.2 | 0.3 | MAX |
SPECIFIC HEAT TREATMENT
| QUALITY | EN – 47 |
|---|---|
| Forging Temperature | 1050 to 850ºC |
| Annealing Temperature | 680 to 720ºC (Soft Annealing) |
| Annealed Hardness BHN Max | 224 BHN |
| Hardening Temperature | 860 to 900ºC (Water) |
| Quenching Media | Water |
| Obtainable Hardness R.C. | —- |
| Working Hardness HRC. | —- |
| Tempering Temperature | 670 to 530ºC |
| Normalising Temperature | 860 to 900ºC |
