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Duplex Steel UNS S31803 Seamless U Tube Manufacturer.
Seamless: ASTM A789 Duplex S31803 Seamless U Tube | ASME SA789 Duplex UNS S31803 Seamless U Tube | 1/2″ SCH 40 Duplex Steel S31803 Seamless U Tubes
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MPJ Tubing Solutions LLP is a prominent manufacturer and supplier of Duplex Steel S31803 Seamless U Tubing, catering to various industrial sectors with precision-crafted tubing solutions. These U-shaped tubes are manufactured in compliance with the stringent ASTM A789 standards, ensuring the highest quality and reliability for critical applications.
The UNS S31803 Seamless U Tubes offered by MPJ Tubing Solutions LLP are renowned for their exceptional performance characteristics. With an outer diameter range of 12.70 mm to 50.80 mm and a wall thickness varying from 0.71 mm to 5.0 mm, these tubes provide the flexibility needed to meet diverse project requirements. Moreover, they can be customized to reach lengths of up to 24 meters, offering versatility and adaptability in various industrial settings.
The core material of these seamless U tubes is Duplex Steel, a remarkable alloy known for its outstanding corrosion resistance, mechanical strength, and durability. This makes it an ideal choice for demanding applications in industries such as petrochemical, chemical, and offshore, where resistance to aggressive environments and high temperatures is paramount.
MPJ Tubing Solutions LLP takes pride in manufacturing Duplex S31803 Seamless U Tubing that complies with globally recognized standards, including ASTM, ASME, DIN EN (GERMAN), NF (AFNOR), and JIS (JAPAN). This commitment to adhering to international regulations ensures that customers receive tubing products that meet the highest quality and performance standards.
What sets MPJ Tubing Solutions LLP apart is its unwavering commitment to precision manufacturing processes and a customer-centric approach. Clients can rely on MPJ Tubing Solutions LLP to deliver dependable and high-performance tubing solutions that are tailored to their exact specifications.
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Duplex Steel UNS S31803 Seamless U Tube Chemical Composition
| Grade | C | Mn | P | S | Si | Ni | Cr | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.030 max | 2.00 max | 0.030 max | 0.020 max | 1.00 max | 4.5 – 6.5 | 21.0 – 23.0 | 2.5 – 3.5 | 0.08 – 0.20 |
UNS S31803 Seamless U Tubes Mechanical Properties
| Grade | Tensile Strength min, Ksi (MPa) | Yield Strength min, Ksi (MPa) | Hardness, max | Elongation (% in 50mm) min | |
|---|---|---|---|---|---|
| Brinell | Rock-well Well C | ||||
| S31803 | 90 (620) | 65 (450) | 290 | 30.5 | 25 |
Duplex Steel UNS S31803 Seamless U Tubes Standard Specifications
Spec. No.
Title
Scope
ASTM A789
Standard Specification for Seamless U and Welded Ferritic/Austenitic Duplex Steel Tubing for General Service.
ASTM A789 /A789M Covers Grades of nominal wall thickness, Duplex Steel Tubing for services requiring general corrosion resistance.
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Size Range
- Outer Diameter: 12.70 mm to 50.80 mm
- Wall Thickness: 0.71 mm – 5.0 mm
- Length: Up to 24 mtr long
- Specifications: ASTM, ASME, DIN EN (GERMAN), NF (AFNOR), JIS (JAPAN)
Supply Condition
- Bright Annealed / Solution Annealed & Passivated
Features
- Ability to supply tubes with stringent NDT Testing, Special Chemistry, Lower Residual Stress values.
- OD Polishing : Grit Polish from 120 to 600.
- Closer Dimensional Tolerance & higher Corrosion Resistance etc.
Duplex S31803 Steel Seamless U Tube Quality Control
To ensure a quality product, MPJ is holding certificate ISO 9001:2015, ISO 45001, OHSAS 14001, & CE-PED. We are also members of various renowned agencies and Chambers of Commerce including MASSMA, EEPC, FICCI, FIEO, Indian Merchants Chamber, etc. With state-of-the-art manufacturing processes, contemporary technologies, and proficient services, we consider: offering the finest quality, best in class products. Compliance with specifications as per standards, Outer Diameter, Thickness, Inside Diameter, Inside Finish, Marking, Ends, and Finishing. This ensures that we never face a rejection of the UNS S31803 Duplex Steel Seamless U Tube supplied.
Brand – 
Duplex UNS S31803 Seamless U Tubing are marked in requirement of the international standards.
Format: ” BRAND-SIZE-SPECIFICATION-GRADE-HEAT NUMBER-LOT NUMBER “
This marking helps for the identification of the UNS S31803 Duplex Seamless U Tube and supported with the Material Test Report. It is 100% traceable to our mill.
Available Duplex Steel Seamless U Tubing Grades
UNS S31803 Duplex Steel Smls U Tubes Packing & Documentation
ASTM A789 UNS S31803 Duplex Steel Seamless U Tubes are surface wash and clean to remove all impurities and stock in the warehouse. Then it is wrapped in thin plastic and also it ends are protected by plastic caps to avoid any damage in transit. Duplex Steel S31803 Seamless U Tube is bundled in bubble wrap followed by assorting them in colored plastic bundles. An outer rope is tied to protect the tubing and they are packed in wooden box or container.
MPJ Provide S31803 Duplex Steel Seamless U Tube with all necessary documents such as commercial invoice, packing list, Test Reports, HS Code, Country of Origin attested by the chamber of commerce, Fumigation Certificate, Warranty Letter, and Base Material Certificates. Every lot is supplied with a material test certificate as per EN 10204 NACE 3.1 standards indicating the chemical and mechanical properties of the Duplex Steel UNS S31803 Seamless U Tubes.
We also confirm the guarantee of the UNS S31803 Duplex Steel Seamless U Tubes supplied as per Purchase order specifications and attest the same in the Material Test Certificate. We also welcome any third party inspection from an agency nominated by the customer to comply with NACE 3.2 Certification if required by the customer at an extra cost.
UNS S31803 Duplex Steel Seamless U Tube Application Industries
- Oil & Gas Exploration
- Petrochemicals and Refineries
- Cross Country Pipe Line for Gas & Water
- Pipes for Engineering purpose
- Thermal, Nuclear and Solar Power Plants
- Desalination Plants
- Chemical Industries
- Aerospace
- Atomic Energy
- Pharmaceutical
- Food and Dairy
- Automobile
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