| CHEMICAL ANALYSIS | |
| C | Carbon 0.08/0.20 |
| Mn | Manganese 0.25 max |
| Si | Silicon 0.50 max |
| Cr | Chromium 12.0/14.0 |
| Mo | Molybdenum 3.80/5.20 |
| Cb + Ta | Columbium + Tantalum 1.80/2.80 |
| Al | Aluminium 5.50/6.50 |
| Ti | Titanium 0.50/1.00 |
| Cu | Copper 0.50 max |
| Fe | Iron 2.50 max |
| B | Boron .005/.015 |
| Zr | Zirconium 0.05/0.15 |