Situated in Bangkok, Thailand, Thaida Pipes and Tubes is a premier supplier and manufacturer of piping products for various industries. Thaida offers Super Duplex Steel Tubes that provide superior strength, corrosion resistance, and durability in extreme environments. These products are designed to perform in severe pressure and temperature environments, making them suitable for offshore, marine, chemical applications, and within the oil and gas industries. Thaida is dedicated to servicing customers’ needs with engineered products that conform to internationally recognized standards of product reliability, product performance, and customer satisfaction.
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Super duplex steel tubes contain roughly 25% chromium, 7% nickel, 4% molybdenum, and nitrogen, providing a balanced microstructure of ferrite and austenite. They also have fantastic mechanical properties, with high yield strength, high tensile strength, and unique stress corrosion cracking and pitting resistance. The benefits include superior performance in acidic environments and chloride concentration, good weldability, and a longer service life. Super duplex is recommended for challenging applications in marine, chemical, desalination, and oil & gas industries that require durability and corrosion resistance.
Super Duplex Steel Tubes Specification
| Tubes Specifications |
ASTM A789 / ASME SA789 |
| Dimensional specification |
ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| ASTM A789 Seamless Tubes Size |
1 / 2″ NB – 16″ NB |
| Outside Diameter |
6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Super Duplex Tubes Manufacturing Techniques |
Seamless |
| Super Duplex Tubes Schedule Thickness Range |
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Ferritic / Austenitic Tubes End Types |
Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Delivery Condition of Super Duplex steel Tubes |
Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Surface Finish |
No.1, No.4, No.8 Mirror Finish, 2B |
| Value Added Services |
Cutting, Beveling, Polishing, Threading, Destructive, Non-Destructive, Ultrasonic Testing |
| Inspection and Test Reports |
EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non-Destructive Test Reports |
| Marking |
Specification
Grade
Nominal Tubes Sizes
Tubes Schedule or Wall Thickness
Manufacturing Method (Seamless)
Heat Number
Manufacturer’s Name or Custom Logo – on request |
| Outside Finish |
2B, No.4, No.1, No.8 Mirror Finish for Super Duplex Tubes, Finish as per customer Requirements |
| Delivery Condition |
Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Packing of Super Duplex Tubes |
Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
| Specials |
Sizes and Specifications other than above can be on request |
Super Duplex Tubing Chemical Composition
| Element |
Content (%) |
| Chromium, Cr |
24 – 26 |
| Nickel, Ni |
6 – 8 |
| Molybdenum, Mo |
3 – 5 |
| Manganese, Mn |
1.20 max |
| Silicon, Si |
0.80 max |
| Copper, Cu |
0.50 max |
| Nitrogen, N |
0.24 – 0.32 |
| Phosphorous, P |
0.035 max |
| Carbon, C |
0.030 max |
| Sulfur, S |
0.020 max |
| Iron, Fe |
Balance |
Super Duplex Tubing Mechanical Composition
|
|
Yield Strength |
Tensile Strength |
|
|
|
|
|
|
|
| Alloy |
UNS Designation |
ksi |
psi |
MPa |
Spec. |
psi |
MPa |
ksi |
Elongation in 2 in. (min.) % |
Modulus of Elasticity (x106psi) |
Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) |
Grain Size Req. |
Max. Hardness |
Thermal Conductivity (BTU-in/ ft2-h-°F) |
| 2507 |
S32750 |
116 |
80,000 |
550 |
A789, A790 |
116,000 |
800 |
80 |
15 |
27.5 |
7.2 |
– |
32 Rc |
|
| 2507 |
S32950 |
100 |
70,000 |
485 |
A789, A790 |
100,000 |
690 |
70 |
20 |
– |
– |
– |
30.5 Rc |
– |
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Why Choose Super Duplex Steel Tubes from Thaida?
Choosing Super Duplex Steel Tubes in Thailand ensures superior quality, durability, and performance. These pipes provide outstanding corrosion resistance and strength, making them ideal for demanding industrial applications. With a strong commitment to exceptional service and timely delivery, Thaida guarantees complete customer satisfaction. Backed by expertise in stainless steel products, we deliver high-grade, customized solutions designed to meet your specific requirements with precision and reliability.
Super Duplex Steel Tubes Dimension
| Outer Diameter (OD) |
Range of Wall Thicknesses |
Wall Thickness (WT) |
| 152.4 mm |
8.0 mm |
7 mm |
| 19 mm |
1.0 mm |
0.5 mm |
| 6.35 mm |
0.30 mm |
0.25 mm |
| 38.1 mm |
2.0 mm |
1 mm |
| 12.7 mm |
0.75 mm |
0.3 mm |
| 63.5 mm |
4.0 mm |
2 mm |
| 25.4 mm |
1.5 mm |
0.5 mm |
| 76.2 mm |
5.0 mm |
4 mm |
| 50.8 mm |
3.0 mm |
1.5 mm |
| 127 mm |
7.0 mm |
6 mm |
| 101.6 mm |
6.0 mm |
5 mm |
Largest Super Duplex Steel Tubes Supplier in Thailand
A leading supplier of Super Duplex Steel Tubes, Thaida offers a wide range of high-quality pipes and tubes suitable for various industrial applications. With an extensive inventory and a strong commitment to dependable service, it has earned a reputation as a trusted provider of stainless steel solutions throughout Thailand.
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Types of Super Duplex Steel Tubes
Are Custom Sizes Available for Super Duplex Steel Tubes?
Yes, Thaida in Thailand provides custom sizes for Super Duplex Steel Tubes to perfectly match your specific requirements. Our dedicated team is committed to delivering tailored piping and tubing solutions that meet your industrial needs. For more information, reach out to us at [email protected].
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Super Duplex Steel Tubes are commonly utilized in industries that require high strength and corrosion resistance. They are ideal for offshore platforms, heat exchangers, pressure vessels, desalination plants, and chemical processing systems. These tubes offer a proven reliability at high pressure and high chloride environments in oil & gas, marine, and power generation applications; and their excellent resistance to pitting/corrosion, and stress cracking means that they are suitable for seawater applications, pipeline systems, and heat recovery systems while providing long-term durability and performance in challenging situations.
Super Duplex Steel Tubes Uses
