Home > Duplex Steel > Duplex Steel Tubing
At Nasir Nickel Alloys in Manama, Bahrain, Duplex Steel Tubing is engineered to deliver superior strength, corrosion resistance, and durability for demanding industrial applications. With a balanced austenitic-ferritic microstructure, this tubing resists pitting, crevice corrosion, and stress-corrosion cracking in chloride-rich and chemically aggressive environments. Manufactured with precision for dimensional stability and consistent mechanical properties, Duplex Steel Tubing ensures reliable, long-lasting performance in high-pressure and high-temperature conditions. Ideal for chemical processing, petrochemical, oil and gas, power generation, and marine industries, it provides robust, leak-tight solutions for critical piping, heat exchangers, and structural applications.
Duplex Steel Tubing is composed primarily of chromium, nickel, molybdenum, and nitrogen, forming a balanced austenitic-ferritic structure. This composition provides high tensile and yield strength, excellent toughness, and superior resistance to pitting, crevice corrosion, and stress-corrosion cracking. The tubing maintains mechanical integrity, dimensional stability, and performance under thermal cycling, high pressure, and mechanically demanding conditions. Combining strength, durability, and corrosion resistance, Duplex Steel Tubing ensures long-lasting, reliable operation in critical industrial, petrochemical, marine, and offshore applications where conventional stainless steels may fail.
|
Standard |
: |
ASTM A789 /ASME SA 789 |
|
Type |
: |
Seamless Tubes |
|
Grade |
: |
UNS S31803 & UNS S32205 |
|
Size |
: |
1/2″NB TO 12 “NB IN |
|
Thickness |
: |
0.5-45mm |
|
Outer Diameter |
: |
6.0-630mm |
|
Dimensions |
: |
OD(6.0-630)*WT(0.5-45)mm |
|
Schedule |
: |
SCH20, SCH30, SCH40, STD, SCH80 |
|
Length |
: |
Single Random, Double Random & Cut Length |
Duplex Steel Tubing | Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe |
MIN | 4.5 | 22.0 | 3.0 | – | – | – | 0.14 | – | – | – |
MAX | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 | Balance |
At Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Tubing in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Tubing is widely used in industries that demand corrosion-resistant, high-strength, and durable piping solutions. It is essential in chemical and petrochemical plants for heat exchangers, condensers, reactors, and process piping exposed to acids, chlorides, and oxidizing chemicals. Oil and gas industries utilize this tubing in offshore platforms, subsea pipelines, and high-pressure transportation systems. Power generation facilities rely on Duplex Steel Tubing in boilers, cooling water systems, and turbines. Marine and desalination plants employ it in seawater piping systems. The tubing ensures leak-tight performance, structural integrity, and long-term durability in harsh, corrosive, and high-pressure environments.
