With in-house quality testing and certification, you can count on quality materials delivered with proper documentation.
Duplex Steel UNS S31803 Seamless Tube Manufacturer.
SEAMLESS: ASTM A789 Duplex S31803 Seamless Tube | ASME SA789 Duplex UNS S31803 Seamless Tube | 1/2″ SCH 40 Duplex Steel S31803 Seamless Tubes
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MPJ Tubing Solutions LLP has emerged as a distinguished player in the stainless steel manufacturing sector, specializing in the production of Duplex Steel S31803 Seamless Tubes. These exceptional tubes, in line with ASTM A789 standards, exemplify the company’s unwavering commitment to quality and precision.
Duplex steel, and particularly UNS S31803, is celebrated for its remarkable combination of properties, including outstanding strength, corrosion resistance, and the ability to withstand demanding environments. These attributes make it the material of choice across a multitude of industries, ranging from oil and gas to chemical processing and desalination plants.
The ASTM A789 Duplex Steel S31803 Seamless Tubes manufactured by MPJ Tubing Solutions LLP are a testament to their dedication to delivering top-tier products. 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 offer exceptional versatility to meet the diverse needs of various projects. Whether it’s a small-scale application or an extensive industrial project, these tubes can be customized to precisely match specific requirements.
One of the key advantages is the option to choose lengths of up to 24 meters. Longer tube lengths not only simplify installation but also reduce the need for joints, thereby enhancing the overall reliability and durability of tubing systems.
MPJ Tubing Solutions LLP has earned a solid reputation in the industry for producing Duplex Steel S31803 Seamless Tubes that are engineered with utmost precision. Their adherence to international standards, including ASTM, ASME, DIN EN, NF, and JIS, ensures that customers receive products of unparalleled quality. These tubes, characterized by their exceptional properties and remarkable dimensional flexibility, underscore MPJ Tubing Solutions LLP’s commitment to manufacturing excellence in the stainless steel domain.
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Duplex Steel UNS S31803 Seamless 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 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 Tubes Standard Specifications
Spec. No.
Title
Scope
ASTM A789
Standard Specification for Seamless 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: 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 Seamless 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 Tube supplied.
Brand – 
Duplex UNS S31803 Seamless 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 Tube and supported with the Material Test Report. It is 100% traceable to our mill.
Available Duplex Steel Seamless Tubing Grades
UNS S31803 Duplex Steel SMLS Tubes Packing & Documentation
ASTM A789 UNS S31803 Duplex Steel Seamless 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 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 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 Tubes.
We also confirm the guarantee of the UNS S31803 Duplex Steel Seamless 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 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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