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Send InquiryUNS S31803 Pipes
MOQ : 50 Kilograms
UNS S31803 Pipes Specification
- Diameter
- 6 mm to 610 mm
- Tolerance
- 0.02 mm
- Sealing Type
- Metal to metal
- Flexibility
- Rigid
- Bend Radius
- Standard as per ASTM
- Thread Type
- NPT, BSP
- Coating Type
- No external coating
- Temperature Range
- -50C to 300C
- Connection Type
- Threaded, Welded
- Tensile Strength
- 620 MPa min
- Yield Strength
- 450 MPa min
- Product Type
- Seamless & Welded Pipes
- Material
- Duplex Stainless Steel
- Connection
- Welded, Threaded
- Shape
- Round
- Standard
- ASTM A790 / ASME SA790
- Surface Treatment
- Polished, Pickled
- Outer Diameter
- 6 mm to 610 mm
- Section Shape
- Circular
- Length
- Up to 12 meters
- Thickness
- 1.5 mm to 25 mm
- Color
- Metallic Silver
- Usage
- Industrial, Marine, Chemical Processing
- Rated Pressure
- Up to 400 Bar
- Application
- Oil & Gas, Petrochemical, Water Desalination, Power Plants
- Material Grade
- UNS S31803
- Testing
- Hydrostatic, PMI, UT, Visual Inspection
- Elongation
- 25% min
- End Finish
- Plain End, Beveled End, Threaded End
- Manufacturing Process
- Seamless, ERW, Welded, Fabricated
- Hardness
- 240 HB max
- Corrosion Resistance
- Excellent to seawater and most chemicals
- Density
- 7.8 g/cm³
UNS S31803 Pipes Trade Information
- Minimum Order Quantity
- 50 Kilograms
- Supply Ability
- 50 Kilograms Per Week
- Delivery Time
- 1-2 Week
About UNS S31803 Pipes
Product details
- Specifications : ASTM A790, A789, A928 / ASME SA790, SA789, SA928
- Dimensions : ASTM, ASME, and API
- Size : 1/2NB TO 12 NB IN
- Specialized in : Large Diameter Size
- Schedule : SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS
- Type : Seamless / ERW / Welded / Fabricated
- Form : Seamless Pipes, ERW Pipe, EFW, Pipe, Seamless Tube, ERW Tube, Square Pipe.
- Length : Single Random, Double Random & Required Length.
- End : Plain End, Beveled End, Treaded
Superior Durability and Strength
The UNS S31803 Duplex Stainless Steel Pipes are engineered to deliver high tensile (minimum 620 MPa) and yield strengths (minimum 450 MPa), combined with rigid construction and extraordinary elongation. These properties make the pipes reliable under high pressure (up to 400 Bar) and temperature fluctuations, ranging from -50C to 300C.
Comprehensive Quality Assurance
Each pipe is subjected to strict quality and safety tests such as hydrostatic, Positive Material Identification (PMI), Ultrasonic Testing (UT), and visual inspections. Adhering to precise tolerances of 0.02 mm, these pipes meet rigorous ASTM A790/ASME SA790 requirements, ensuring consistent and safe operation in demanding environments.
Versatile Applications Across Industries
Designed for a wide array of uses, UNS S31803 Pipes are ideal for oil & gas, chemical processing, water desalination, and marine industries, among others. Their outstanding corrosion resistance and polished surface treatment ensure longevity even in harsh environments, making them a preferred choice for critical operations.
FAQ's of UNS S31803 Pipes:
Q: How are UNS S31803 Pipes manufactured and what shapes are available?
A: UNS S31803 Pipes can be produced using seamless, ERW, welded, or fabricated manufacturing processes. The standard available shape is circular (round section), compliant with ASTM A790 / ASME SA790 specifications.Q: What testing processes are used to ensure the quality of these pipes?
A: All pipes undergo comprehensive quality checks including hydrostatic testing, Positive Material Identification (PMI), ultrasonic testing (UT), and thorough visual inspection to guarantee material integrity and performance.Q: Where are UNS S31803 Pipes commonly used and why are they preferred in these industries?
A: These pipes are widely used in industries such as oil & gas, petrochemical, water desalination, power plants, and marine applications due to their excellent corrosion resistance, strength, and reliability in demanding environments.Q: What benefits do UNS S31803 Pipes offer for marine and chemical processing applications?
A: With excellent corrosion resistance to seawater and most chemicals, as well as a polished or pickled surface finish, these pipes ensure durability and low maintenance in harsh operating conditions, making them especially beneficial in marine and chemical plants.Q: When should polished or pickled surface treatments be chosen for these pipes?
A: Polished surfaces are ideal for installations requiring aesthetic appearance and smoothness, while pickled finishes are suitable for enhanced corrosion resistance in highly aggressive chemical or marine settings.Q: What are the available end finishes and connection types for UNS S31803 Pipes?
A: End finishes include plain end, beveled end, and threaded end. The pipes support welded and threaded connections, with thread types available in NPT and BSP standards.
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