| Stainless Steel | Corrosion resistant, high strength | Water, oil, and gas services | Durability, low maintenance | Higher cost |
| Carbon Steel | Strong, good machinability | High pressure applications | Cost-effective, widely available | Susceptible to rust without coating |
| Brass | Good corrosion resistance, machinable | Water and gas service lines | Excellent sealing properties | Not suitable for high-pressure applications |
| Monel | Corrosion resistant, high strength | Marine applications, chemical processing | Exceptional resistance to pitting and stress corrosion | High cost, difficult to machine |
| Titanium | Lightweight, strong, excellent corrosion resistance | Aerospace, chemical industries | High strength-to-weight ratio | Very high cost, specialized machining |