The two stainless steels 2205 and 2507 are significantly different in many ways, and here are some of the main differences:

1) Chemical composition

2205 stainless steel is a duplex stainless steel, it contains about 22% chromium, 5% nickel, and 3% molybdenum. While 2507 stainless steel is a super duplex stainless steel, it contains higher nickel and molybdenum content, while reducing the chromium content. Specifically, its nickel content is about 7%, molybdenum content is about 3%, and chromium content is about 20%.

2) Strength and toughness

Due to its special chemical composition, 2507 stainless steel is excellent in terms of strength and toughness. Compared to 2205 stainless steel, it has higher tensile strength and yield strength. In addition, due to its higher nickel and molybdenum content, the corrosion resistance of 2507 stainless steel is also better than 2205 stainless steel.

3) Processing performance

2205 stainless steel has good processing performance, can be welding, bending, cutting and other processing. The 2507 stainless steel due to its high strength and hardness, the processing performance is relatively poor, the need for more complex processing technology.

4) Application

Due to its excellent strength and corrosion resistance, 2507 stainless steel is mainly used in high-corrosion environments such as Marine engineering, oil and gas extraction. 2205 stainless steel is mainly used in paper machinery, food processing equipment and chemical equipment and other fields.

5) Sum up

To sum up, although 2205 and 2507 stainless steels are duplex stainless steels, they are significantly different in practical applications due to their chemical composition, strength, toughness, processing properties and uses.