Selecting the right ejector pin material and coating
| Material | Hardness | Wear Life | Cost |
|---|---|---|---|
| H13 (Standard) | 48-52 HRC | 100k-200k cycles | Low |
| SKD61 (Japanese) | 48-52 HRC | 200k-400k cycles | Medium |
| Nitrided H13 | 65-70 HRC surface | 400k-800k cycles | Medium |
| TiN Coated | 80+ HRC surface | 500k-1M cycles | High |