Name: Duplex Seamless Pipe Manufacturer In India Supplying Uns S31803 Uns S32205 And Astm A790 Grade Pipes
Brand: Sagar Steel Corporation
Availability: InStock
Rating: 5 (24 reviews)

Question 1

What is a duplex pipe?

Accepted Answer

A duplex pipe is a type of stainless steel pipe made from duplex stainless steel, which has a mixed microstructure of austenite and ferrite in roughly equal proportions. This unique combination gives duplex stainless steel superior strength and excellent resistance to corrosion, stress corrosion cracking, and pitting compared to regular stainless steel. Duplex pipes are commonly used in industries such as oil and gas, petrochemicals, and chemical processing, where high performance in harsh environments is essential. Additionally, they offer good weldability and are suitable for use in a range of temperatures.

Question 2

Which is better, seamless or ERW pipe?

Accepted Answer

The choice between seamless and ERW (Electric Resistance Welded) pipes depends on the application and specific requirements. Seamless pipes are generally considered stronger and more reliable under high pressure, making them ideal for critical applications in the oil and gas industry, power plants, and high-pressure environments. They are manufactured without a weld seam, reducing the risk of leaks and failures. On the other hand, ERW pipes are more cost-effective and have a smooth internal surface, making them suitable for applications like water pipelines, structural purposes, and low- to medium-pressure systems. ERW pipes are often preferred when high precision and uniformity are needed, but they may not be as strong as seamless pipes under extreme conditions. Overall, the choice depends on the operating conditions, pressure requirements, and budget considerations.

Question 3

What size is duplex 2205 pipe?

Accepted Answer

Duplex 2205 pipe is available in a range of sizes to suit various applications. The sizes typically range from small diameter pipes to large ones, with common outer diameters starting from 1/8 inch (3.2 mm) up to 24 inches (610 mm) or even larger in some cases. The wall thickness of Duplex 2205 pipes can also vary based on specific requirements and can be specified as Schedule 5, Schedule 10, Schedule 40, Schedule 80, and beyond. The exact size and schedule of Duplex 2205 pipe depend on the application and the standards specified, such as ASTM, ASME, or API requirements.

Specifications	Astm, Asme, Din, Nfa, Jis
Thickness	4.0mm, 100mm
Pipes Size	1/8” Nb, 24” Nb, 1/4” Od, 24” Od Sizes
Tubes Size	1/2″ Od, 8″ Od
Length:	Single Random, Double Random, Required Length, Cut Length, Fix Length
End	Plain End, Beveled End, Threaded

Common Name	ASTM / UNS Grade	Typical Composition (Main Elements)	Typical Applications	Key Properties
Duplex 2205 Seamless Pipe	ASTM A790 UNS S32205 / S31803	Cr 22%, Ni 5–6%, Mo 3%, N	Oil & gas, offshore, pressure piping	High strength, excellent stress corrosion resistance
Duplex 2304 Seamless Pipe	ASTM A790 UNS S32304	Cr 23%, Ni 4%, Mo low	Structural & chemical processing	Good corrosion resistance, cost-effective
Duplex 2507 Seamless Pipe	ASTM A790 UNS S32750	Cr 25%, Ni 7%, Mo 4%, N	Offshore, seawater, desalination	Very high strength, superior pitting & crevice resistance
Super Duplex 32760 Pipe	ASTM A790 UNS S32760	Cr 25%, Ni 7%, Mo 3.5%, W, Cu	Severe marine & chemical environments	Excellent corrosion resistance, high PREN value

Pipe Type	Outside Diameter	Length	Schedule / Thickness	Minimum Quantity
Duplex 2205 Seamless Pipes	1/2" NB – 24" NB	SRL / DRL / Cut	SCH 10 – SCH XXS	200 Pcs
Duplex 2304 Seamless Pipes	1/2" NB – 20" NB	SRL / DRL / Cut	SCH 10 – SCH XXS	200 Pcs
Super Duplex 2507 Seamless Pipes	1/2" NB – 24" NB	SRL / DRL / Cut	SCH 10 – SCH XXS	200 Pcs
Super Duplex 32760 Seamless Pipes	1/2" NB – 24" NB	SRL / DRL / Cut	SCH 10 – SCH XXS	200 Pcs
Custom Duplex Seamless Pipes	As Required	As Required	As Required	200 Pcs

Duplex Seamless Pipe Manufacturer In India Supplying Uns S31803 Uns S32205 And Astm A790 Grade Pipes

Duplex seamless pipes manufactured in India for oil gas offshore chemical processing and high strength industrial piping systems

Duplex Stainless Steel Seamless Pipes – Material & Grade Table

Duplex Stainless Steel Seamless Pipes – Sizes, Types & Availability Table

The salient properties of Duplex seamless pipes are as follows.

Type of Sub-products

Frequently Asked Questions

What is a duplex pipe?

Which is better, seamless or ERW pipe?

What size is duplex 2205 pipe?

Countries We Export

Cities We Supply

Industries We Serve