Jiangsu Zhonggongte Metallurgical Technology Co., Ltd.
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Corrosion Resistant Duplex Steel UNS S32205/UNS S32760/UNS S32750 Alloy Steel Rod Size And Diameter.
Material Introduction:
1.
S32205 is a duplex stainless steel, also known as 2205 stainless steel, with high strength, good corrosion resistance, and weldability, widely used in fields such as petroleum, chemical, and marine engineering.
The characteristics of S32205 stainless steel include:
Dual phase structure: Combining the characteristics of austenite and ferrite microstructures, it provides excellent mechanical properties and corrosion resistance.
High strength and hardness: Its yield strength is more than twice that of ordinary austenitic stainless steel, and it also has good ductility.
Good corrosion resistance: It can stably maintain its performance and structure in environments rich in chloride ions, such as seawater and chemical liquids, especially in high stress environments.
Weldability: It has good weldability and is suitable for various welding methods.
The chemical composition of S32205 stainless steel includes high levels of chromium, nickel, molybdenum, and nitrogen.
The chemical composition of S32205 includes:
| C | Si | Mn | P | S | Cr | Ni | Mo | N |
| Maximum 0.03% | Maximum 1.00% | Maximum 2.00% | Maximum 0.03% | Maximum 0.02% | 22.00% -23.00% | 4.50% -6.50% | 2.50% -3.50% | 0.14% -0.20% |
Carbon (C): Maximum 0.03%
Silicon (Si): maximum 1.00%
Manganese (Mn): maximum 2.00%
Phosphorus (P): maximum 0.03%
Sulfur (S): maximum 0.02%
Chromium (Cr): 22.00% -23.00%
Nickel (Ni): 4.50% -6.50%
Molybdenum (Mo): 2.50% -3.50%
Nitrogen (N): 0.14% -0.20%
These components make S32205 superior to 316L and 317L in terms of corrosion resistance in most environments, especially in oxidizing and acidic solutions with strong resistance to point corrosion and crevice corrosion.
2.S32760 is a high-performance super duplex stainless steel material with high strength and corrosion resistance.
S32760 stainless steel, also known as super duplex steel, is a high alloy material mainly used in various strong corrosive environments. Its tensile strength ranges from 750 to 895 MPa, yield strength is greater than 550 MPa, and elongation is greater than 25%, demonstrating excellent mechanical properties. The chemical composition of this material includes elements such as carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, tungsten, copper, and nitrogen. Among them, the high content of chromium and nickel endows it with strong oxide film protection, while the added elements such as molybdenum and nitrogen further enhance its corrosion resistance in wear, erosion, and other aspects.
The chemical composition of S32760 mainly includes carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, molybdenum, nitrogen, and copper.
| C | Si | Mn | P | S | Ni | Cr | Mo | N | Cu |
| 0.030% -0.03% | 1.00% | 1.00% | 0.030% | 0.010% | 6.0% -8.0% | 24% -26% | 3.0% -4.0% | 0.20% -0.30% | 0.50% -1.00% |
Carbon (C): 0.030% -0.03%
Silicon (Si): 1.00%
Manganese (Mn): 1.00%
Phosphorus (P): 0.030%
Sulfur (S): 0.010%
Nickel (Ni): 6.0% -8.0%
Chromium (Cr): 24% -26%
Molybdenum (Mo): 3.0% -4.0%
Nitrogen (N): 0.20% -0.30%
Copper (Cu): 0.50% -1.00%
These components endow S32760 with high strength and excellent corrosion resistance, making it particularly suitable for fields such as chemical processing, petrochemicals, and subsea equipment. The tensile strength range of S32760 is 750~895 MPa, the yield strength is greater than 550 MPa, and the elongation is greater than 25%. These mechanical performance indicators ensure its reliability and durability under extreme conditions.
3.S32750 is a super duplex stainless steel, also known as UNS S32750 or 2507. This material combines the characteristics of both ferrite and austenite phases, thus possessing the advantages of both in terms of performance. S32750 stainless steel is widely used in fields such as petrochemicals, marine engineering, salt production, water treatment, and shipbuilding due to its excellent corrosion resistance, high strength, and good welding performance. Its main features include excellent corrosion resistance, especially in resisting point corrosion, crevice corrosion, and uniform corrosion, especially in chloride environments. In addition, S32750 stainless steel also has high yield strength and tensile strength, thanks to its dual phase structure, which is a mixture of austenite and ferrite.
The chemical composition of S32750 mainly includes elements such as iron, chromium, nickel, molybdenum, manganese, etc. Among them, the content of chromium is about 25% -28%, the content of nickel is 4% -6%, the content of molybdenum is 1% -2%, and the maximum content of manganese is 2%. The rest is mainly composed of iron.
In detail, the chemical composition of S32750 includes:
Chromium (Cr): approximately 25% -28%
Nickel (Ni): about 4% -6%
Molybdenum (Mo): about 1% -2%
Manganese (Mn): maximum content of 2%
Iron (Fe): Excess
In addition, S32750 also contains small amounts of elements such as carbon, silicon, phosphorus, and sulfur, with content ranges of:
Carbon (C): ≤ 0.03%
Silicon (Si): ≤ 0.8%
Phosphorus (P): ≤ 0.035%
Sulfur (S): ≤ 0.02%
These chemical components endow S32750 with excellent corrosion resistance and high strength, making it widely used in industrial production.