Good Quality ASTM a 789 / a 790 Duplex Seamless Steel Pipes

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Model NO.: ASTM
• Grade: 600 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Welded
• Surface Treatment: Polished
• Transport Package: Wooden Box
• Specification: 0.3mm - 50 mm, ASTM A790 / ASME SA 790
• Trademark: YULONG
• Origin: China
• HS Code: 7304240000

Product Description

Duplex Steel Seamless Pipes /Welded Pipes

Duplex pipes combine austenitic and ferritic stainless steel nano-grains, giving them superior strength and corrosion resistance compared to regular carbon steel pipes. Their high strength-to-weight ratio makes them an ideal choice for applications requiring low weight with added strength. At the same time, their corrosion protection also keeps them viable in highly corrosive environments. Duplex pipes are also resistant to localized corrosion, such as pitting and crevice attack, making them preferred over carbon steel properties. 

Specification

Key Configurations

Duplex pipes have good weldability; they can be processed into tight radius bends without any loss of mechanical properties or corrosion resistance. This makes duplex pipes suitable for use not only in onshore/offshore pipelines but also in many industrial applications where higher levels of reliability are necessary.

Duplex Stainless Steel Pipe Grades
Grade 2205: 2205 Duplex Stainless Steel Pipe is the most common duplex stainless steel grade, known for its excellent corrosion resistance and high strength.

Grade 2507: Known as a super duplex, it offers superior corrosion resistance and strength, suitable for harsh environments.

Grade 2304: A lean duplex grade that provides good performance at a lower cost.

Specifications	ASTM A928 / ASME SA 928 ASTM A999 / ASME SA 999 astm a790 duplex 2205, SA 789 alloy 2205, a790 gr 2205      ASTM A790 / ASME SA 790
Pipe Thickness	0.3mm - 50 mm
Pipe Standard	EN, ASTM, ASME AISI, GB, JIS, DIN Duplex 2205 Pipe Supplier
Pipe Value Added Service	as per required Size & Length Draw & Expansion , Pickled Bending and Polish (Electro & Commercial) Annealed, Machining Etc.
Pipe Marking	marked as follows All Duplex 2205 Pipes : Standard, Grade, Thickness, OD, Heat No. (Or according to the customer's request.), Length
Material Test Certificates (MTC)	100% Radiography Test Report, Raw Materials Certificate Material Test Certificates (MTC) as per EN 10204 3.1, EN 10204/3.1B and EN 10204 3.2 Manufacturer Test Certificate Form A for Generapzed System of Preferences (GSP) Fumigation Certificates Third Party Inspection Report Heat Treatment Charts Duplex 2205 Tubes HS Code Commercial Invoice Laboratory Test Certificate from Govt. Approved Lab.

Duplex Steel Pipes Application

Chemical processing, transport, and storage
Pipes for the production and transportation of oil and gas
Oil and gas exploration and offshore rigs
Oil and gas refining
Marine environments
Pollution control equipment
Pulp & paper manufacturing
Structural and mechanical components
Heat exchangers
Cooling pipes