With in-house quality testing and certification, you can count on quality materials delivered with proper documentation.
Duplex Steel UNS S31803 Heat Exchanger Tube Manufacturer.
SEAMLESS/WELDED: ASTM A789 Duplex S31803 Heat Exchanger Tube | ASME SA789 Duplex UNS S31803 Heat Exchanger Tube | 1/2″ SCH 40 Duplex Steel S31803 Heat Exchanger Tubes
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MPJ Tubing Solutions LLP is a distinguished manufacturer of high-quality Duplex Steel S31803 Heat Exchanger Tubing that complies with ASTM A789 standards. These heat exchanger tubes are engineered to deliver exceptional performance in various industrial applications and are highly regarded for their durability, corrosion resistance, and thermal efficiency.
The UNS S31803 Heat Exchanger Tube, produced by MPJ Tubing Solutions LLP, is designed to meet the specific requirements of heat transfer equipment. These tubes feature an outer diameter ranging from 12.70 mm to 50.80 mm, a wall thickness spanning from 0.71 mm to 5.0 mm, and lengths of up to 24 meters. This versatility in dimensions ensures suitability for a wide range of heat exchanger designs and installations.
Duplex Steel S31803, known for its excellent combination of mechanical strength and corrosion resistance, is an ideal material for heat exchanger tubing. It is particularly well-suited for applications in chemical processing, petrochemical, and offshore industries, where exposure to aggressive environments is a concern. This grade of duplex steel exhibits superior resistance to pitting and crevice corrosion, making it an excellent choice for demanding heat exchange applications.
MPJ Tubing Solutions LLP prides itself on its commitment to quality and adherence to international standards. These heat exchanger tubes meet the rigorous specifications outlined by ASTM, ASME, DIN EN (GERMAN), NF (AFNOR), and JIS (JAPAN), ensuring that customers receive products that are not only high-performing but also compliant with industry norms.
MPJ Tubing Solutions LLP is a recognized leader in the tubing industry, known for its dedication to precision manufacturing and customer-centric services. With a focus on delivering top-tier heat exchanger tubing solutions, the company has garnered a strong reputation for reliability and excellence in the market.
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Duplex Steel UNS S31803 Heat Exchanger 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 Heat Exchanger Tube 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 Heat Exchanger Tube 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: 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 Heat Exchanger 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 Heat Exchanger Tube supplied.
Brand – 
Duplex Steel UNS S31803 Heat Exchanger Tube 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 Heat Exchanger Tube and supported with the Material Test Report. It is 100% traceable to our mill.
Available Duplex Steel Heat Exchanger Tube Grades
UNS S31803 Duplex Steel Heat Exchanger Tube Packing & Documentation
ASTM A789 UNS S31803 Duplex Steel Heat Exchanger Tube 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 Heat Exchanger 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 Heat Exchanger 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 Heat Exchanger Tube.
We also confirm the guarantee of the UNS S31803 Duplex Steel Heat Exchanger Tube 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 Heat Exchanger 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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