What is the difference between a steel door and an iron door

Steel doors and iron doors differ in several aspects such as material properties, manufacturing processes, performance characteristics, appearance, and price. The details are as follows:

Steel: Steel is an alloy primarily composed of iron and carbon, with the carbon content typically ranging from 0.02% to 2.11%. Other elements like manganese, silicon, chromium, nickel, and vanadium may also be added to enhance specific properties.

Iron: Iron refers to pure iron or cast iron. Pure iron has relatively high purity, while cast iron is an alloy mainly composed of iron, carbon, and silicon, with a carbon content usually above 2.11%.

Steel: Generally has higher strength and hardness than iron. It can withstand greater force and pressure without easily deforming or breaking, making it more suitable for applications requiring high strength and durability.

Iron: Pure iron is relatively soft and has lower strength. Cast iron is harder but more brittle, meaning it has poor resistance to impact and is more likely to crack or break under stress.

Steel: Usually has better ductility and toughness, which means it can be deformed to a certain extent without breaking and has better resistance to impact and vibration.

Iron: Pure iron has better ductility but poor strength. Cast iron, on the other hand, has poor ductility and toughness and is prone to fracture.
 

Steel Door: Steel doors are often produced through processes like cold rolling, hot rolling, stamping, and welding. High-precision equipment and advanced production techniques are usually used to ensure the door's dimensional accuracy and surface quality.

Iron Door: Iron doors, especially those made of cast iron, are commonly produced by casting. The molten iron is poured into a mold and allowed to cool and solidify. Forged iron doors involve forging the iron at high temperatures to shape them.

Steel Door: Common surface treatments for steel doors include painting, powder coating, and electroplating. These treatments enhance the door's corrosion resistance and decorative effect, providing a variety of color and texture options.

Iron Door: Iron doors are often painted or have anti-rust coatings applied. However, due to iron's higher susceptibility to rust, the surface treatment requirements are relatively strict to prevent corrosion effectively.

Steel: Some types of steel, such as stainless steel, have excellent corrosion resistance due to the presence of elements like chromium and nickel. Even for ordinary carbon steel, with proper surface treatment, it can have good corrosion resistance in normal environments.

Iron: Iron is more prone to rusting in the presence of air and moisture. Cast iron, in particular, is more susceptible to corrosion than steel, and without good anti-rust measures, it can rust quickly.

Steel: Has relatively lower thermal conductivity compared to iron. This means that steel doors can provide better thermal insulation performance, helping to reduce heat transfer and maintain indoor temperature stability.

Iron: Has higher thermal conductivity, so iron doors may have relatively poorer thermal insulation performance. In cold or hot weather, the surface temperature of iron doors may be more affected by the external environment.

Steel Door: Steel doors typically have a smooth and uniform surface texture. The finish can be adjusted to achieve different effects, such as matte, glossy, or textured, offering a modern and sleek look.

Iron Door: Iron doors, especially forged iron doors, often have a more rustic and textured appearance, with visible forging marks and a unique metal texture that can give a sense of artisanship and history.

Steel Door: Can be easily colored through various surface treatment methods, providing a wide range of color options to match different architectural styles and decorative themes.

Iron Door: Usually has a more limited color range, mainly in shades of black, gray, and brown, which are more in line with its traditional and simple style.

Steel Door: The price of steel doors can vary depending on the type of steel, manufacturing process, and brand. Generally, mid-range steel doors are relatively affordable and have a wide price range to suit different consumer needs.

Iron Door: Forged iron doors, in particular, tend to be more expensive due to their complex manufacturing processes and unique artistic value. Cast iron doors may be relatively cheaper but are still generally more expensive than some basic steel doors.