Duplex stainless steel precision tubes have high strength and good corrosion resistance, maintaining their mechanical and physical properties even under extreme temperature fluctuations or high pressure conditions. This makes duplex stainless steel a popular choice in many areas, such as the oil and gas industry, chemical processing facilities, and food processing equipment. Common grades include duplex steel 2205 (UNS S32205) and duplex steel 2507 (UNS S32750).
Duplex stainless steel hot-rolled steel pipe is a type of steel that combines the advantages of austenitic stainless steel and ferritic stainless steel. Its composition typically includes elements such as chromium, nickel, molybdenum and nitrogen, and the amount of each element can vary depending on the specific grade or alloy.
High levels of chromium give duplex stainless steel round pipes excellent corrosion resistance, while the addition of nickel provides additional strength and toughness. The addition of molybdenum improves resistance to pitting corrosion, while nitrogen helps improve weldability.
Duplex stainless steel cold-rolled steel pipe has a lower coefficient of thermal expansion, allowing it to maintain more stable dimensions at high temperatures. This property makes it ideal for use in extreme high temperature conditions, such as cryogenic applications such as liquefied natural gas (LNG) transportation systems.
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item |
Stainless Steel Pipe/Tube |
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Standard |
S31803(2205)S32750(2507) |
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Type |
hot rolled and cold rolled |
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stainless steel round pipe/tube |
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Size |
Wall thickness |
1mm-150mm(SCH10-XXS) |
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Outer diameter |
1mm-150mm(SCH10-XXS) |
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stainless steel square pipe/tube |
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Size |
Wall thickness |
1mm-150mm(SCH10-XXS) |
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Outer diameter |
4mm*4mm-800mm*800mm |
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stainless steel rectangular pipe/tube |
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Size |
Wall thickness |
1mm-150mm(SCH10-XXS) |
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Outer diameter |
1mm-150mm(SCH10-XXS) |
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Length |
4000mm,5800mm,6000mm,12000mm,or as required. |
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Duplex Stainless Steel Hydraulic Pipe
Compared with austenitic stainless steel, duplex stainless steel has the following advantages:
1. The strength is about twice that of ordinary austenitic stainless steel, which can withstand higher allowable stress and is conducive to thinning and weight reduction of the structure.
2. Impact toughness is better than ferritic stainless steel
3. Better resistance to hydrogen embrittlement than ferritic stainless steel
4. Better resistance to chloride stress corrosion cracking
gnee company is a professional manufacturer mainly producing heat-resistant, wear-resistant and corrosion-resistant stainless steel pipes.
The company covers an area of more than 35,000 square meters and has more than 200 employees, including 60 engineering and technical personnel. The heat-resistant, wear-resistant and corrosion-resistant alloy steel products produced are also widely used in machinery, mining, metallurgy, chemical industry, military industry, transportation and other industries.
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