duplex stainless steel plate grades,What is Duplex Stainless Steel Plate Grades? Duplex stainless steel plate grades refer to different classifications of d
What is Duplex Stainless Steel Plate Grades?
Duplex stainless steel plate grades refer to different classifications of duplex stainless steel plates. Duplex stainless steel is a type of stainless steel that has a two - phase microstructure, typically consisting of austenite and ferrite phases. These different grades are designed to meet various requirements in different applications.
For example, in the construction industry, certain duplex stainless steel plate grades might be used for structural components due to their high strength and corrosion resistance. In the chemical processing industry, other grades could be preferred because they can withstand exposure to specific chemicals.
How are Duplex Stainless Steel Plate Grades Determined?
The determination of duplex stainless steel plate grades is based on several factors. One of the main factors is the chemical composition. Different ratios of elements such as chromium, nickel, molybdenum, and nitrogen play a crucial role. For instance, a higher chromium content generally contributes to better corrosion resistance.
Mechanical properties also matter. The strength, ductility, and toughness requirements of the intended application help in choosing the appropriate grade. For example, if a component needs to bear heavy loads, a grade with higher strength will be considered.
Questions and Answers
Question 1: Which duplex stainless steel plate grade is best for marine applications? Answer: For marine applications, duplex stainless steel grades like UNS S32205 are often considered good choices. They have excellent corrosion resistance in seawater due to their balanced chemical composition, which includes elements like chromium, nickel, and molybdenum.
Question 2: How does the chemical composition affect duplex stainless steel plate grades? Answer: The chemical composition has a significant impact. Elements like chromium provide corrosion resistance. Nickel helps in stabilizing the austenite phase. Molybdenum enhances resistance to pitting and crevice corrosion. Different combinations of these elements result in different grades with varying properties.
Below is,duplex stainless steel plate gradespartial price list| Category | Market Price | Use Cases |
| 4x8x3/16 steel plate | 1088$/Ton | Train cars, ships |
| 20ga stainless steel thickness | 1099$/Ton | Building exterior walls, roofs |
| 430 stainless steel plate | 1109$/Ton | Automobile shells, body parts |
