With in-house quality testing and certification, you can count on quality materials delivered with proper documentation.
Duplex Steel UNS S31803 Welded Tube Manufacturer.
Welded: ASTM A789 Duplex S31803 Welded Tube | ASME SA789 Duplex UNS S31803 Welded Tube | 1/2″ SCH 40 Duplex Steel S31803 Welded Tubes
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MPJ Tubing Solutions LLP, a renowned player in the stainless steel manufacturing and export industry, presents a comprehensive range of Duplex Steel S31803 Welded Tubes that strictly adhere to international standards, including ASTM A789. These welded tubes are a testament to the company’s unwavering commitment to precision engineering and uncompromising quality, making them a preferred choice for various industries and professionals.
The Duplex Steel S31803 Welded Tubes offered by MPJ Tubing Solutions LLP are distinguished by their impressive specifications. With outer diameters spanning from 6.00 mm to 101.40 mm and wall thicknesses ranging from 0.70 mm to 8.00 mm, these tubes are highly versatile and suitable for a wide array of applications. Moreover, they can be customized to lengths of up to 24 meters, reducing the need for joints during installation and bolstering the overall structural integrity of projects.
Duplex Steel S31803, renowned for its remarkable attributes such as corrosion resistance, high tensile strength, and resistance to stress corrosion cracking, finds extensive utilization across various industries. MPJ Tubing Solutions LLP’s unwavering commitment to meeting stringent international standards, including ASTM, ASME, DIN EN (GERMAN), NF (AFNOR), and JIS (JAPAN), underscores their dedication to delivering top-tier products that either meet or exceed customer expectations.
As an esteemed exporter, MPJ Tubing Solutions LLP caters to a diverse clientele not only within India but also on a global scale. Their reputation for precision engineering and their dedication to adhering to international standards positions them as a trusted partner for those seeking premium stainless steel welded tubes. Be it for applications in the oil and gas, chemical processing, or other industries, MPJ Tubing Solutions LLP’s UNS S31803 Welded Tubes are engineered to fulfill the most exacting project requirements.
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Duplex Steel UNS S31803 Welded 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 Welded 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 Welded Tubes Standard Specifications
Spec. No.
Title
Scope
ASTM A789
Standard Specification for 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: 6.00 mm to 101.40 mm
- Wall Thickness: 0.70 mm to 8.00 mm
- Length: Upto 24 Meter
- 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.
- We offer customized cut Length to save time of our customers.
Duplex S31803 Steel Welded 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 Welded Tube supplied.
Brand – 
Duplex UNS S31803 Welded 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 Welded Tube and supported with the Material Test Report. It is 100% traceable to our mill.
Available Duplex Steel Welded Tubing Grades
UNS S31803 Duplex Steel ERW Tubes Packing & Documentation
ASTM A789 UNS S31803 Duplex Steel Welded 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 Welded 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 Welded 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 Welded Tubes.
We also confirm the guarantee of the UNS S31803 Duplex Steel Welded 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 Welded 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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