Cast iron valves and cast steel valves are obviously different in terms of material, corrosion resistance, scope of use and price.
1. Material characteristics
Cast iron valves have higher density and lower strength, so they are not strong enough.
Cast steel valves have stable mechanical properties and strong pressure-bearing capacity, so they are more durable than cast iron valves.
2. Corrosion resistance
Cast steel valves have better corrosion resistance than cast iron valves.
3. Scope of use
Cast iron valves are suitable for small and medium-sized low-pressure occasions, such as household tap water, septic tanks, storm drainage and other fields.
Cast steel valves are suitable for chemical, electric power, petroleum, steel and other industrial fields.
4. Price
Due to the difference in materials and manufacturing processes, cast iron valves are cheaper than cast steel valves.
Cast iron gate valve and cast steel gate valve |
