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2205 Duplex Stainless Steel Round (Bar)

fig. beginning " 2205 Duplex Steel " 2205 Duplex Stainless Steel Round

2205 Duplex Steel Bar Introduction

2205 Duplex Stainless Steel Bar is a very popular material widely used in applications requiring high strength and excellent corrosion resistance. It is a duplex stainless steel composed of a mixture of austenite and ferrite phase structures and has the following properties and application advantages:

2205 Duplex Steel Bars are relatively economical in terms of manufacturing and maintenance costs, as their durability reduces the frequency of repairs and replacement of equipment, thereby reducing overall operating costs. When selecting 2205 Duplex Steel Bars, it is important to ensure that the source and quality of the material meets the relevant standards to ensure optimum performance and reliability.

chemical composition

Detailed information about 2205 duplex stainless steel bar also includes its chemical composition and a number of additional physical and processing properties that are essential to ensure its performance in a variety of applications.

Chromium (Cr): Approx. 22%-23%, providing excellent corrosion and heat resistance.
Nickel (Ni): approx. 4.5%-6.5% to enhance the stability of the austenite phase.
Molybdenum (Mo): Approx. 3.0%-3.5% for improved resistance to pitting and crevice corrosion.
Nitrogen (N): Approx. 0.14%-0.20%, enhancing overall mechanical properties and corrosion resistance.
Manganese (Mn),Silicon (Si)**Phosphorus (P)cap (a poem)Sulfur (S)** and others are present in smaller proportions.

2205 stainless steel plate and bar

Excellent corrosion resistance

Due to its high chromium and molybdenum content, 2205 duplex steel bar has much higher corrosion resistance than standard austenitic stainless steels such as 304 and 316. It performs particularly well in chloride-containing and seawater environments.

high strength

The yield strength of 2205 duplex steel bar is about 250MPa, which is twice as high as ordinary austenitic stainless steel, so it can be designed to reduce the wall thickness and weight, thus reducing the cost.

Good welding properties

2205 Duplex Steel Bar has good welding properties and does not require preheating or post heat treatment. However, in order to maintain its excellent corrosion resistance and mechanical properties, it should be properly heat treated after welding.

Good impact resistance

The duplex structure provides higher strength and toughness. The ferrite phase provides good impact resistance, while the austenite phase provides higher ductility and toughness.2205 Duplex Steel Bar maintains good impact resistance at low temperatures.

Processing characteristics

work hardeningThe work hardening rate of 2205 duplex steel is higher than that of austenitic stainless steel, and care should be taken to use suitable tools and parameters when processing.
machining: Although hard and tough, the right cutting tools and lubricants can be effective in machining.
soldered: Suitable electrodes and shielding gases should be selected to avoid embrittlement of the weld heat affected zone.

Application Areas

Duplex Stainless Steel is widely used in several applications due to its excellent mechanical properties and corrosion resistance. The following are some of the major applications of Duplex Stainless Steel: