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ISO 9001/PED/Manufacture License Of Pressure Tube/PED
Place of Origin
China
Duplex Stainless Steel Pipe S31803 ASME SA789 50.8mm – Corrosion-Resistant Pipe for Chemical and Petrochemical Applications
Introduction:
The S31803 duplex stainless steel pipe with a 50.8mm diameter, manufactured to ASME SA789 standards, is a high-performance solution for chemical and petrochemical industries. Designed for corrosive, high-pressure, and high-temperature environments, this pipe combines the strength of ferritic stainless steel with the corrosion resistance of austenitic steel, providing superior durability and reliability. Its duplex structure ensures resistance to chloride-induced stress corrosion, pitting, and crevice corrosion, making it ideal for industrial chemical processing, petrochemical pipelines, and offshore applications.
Material Table:
Material Grade
Description
Key Properties
S31803 Duplex Stainless Steel
Ferritic-austenitic stainless steel
Excellent corrosion resistance, high tensile strength, ideal for chemical and petrochemical piping
Specifications Table:
Parameter
Value / Range
Standard
ASME SA789
Pipe Type
Seamless / Welded
Outer Diameter (OD)
50.8mm
Wall Thickness (WT)
2mm – 6mm
Length
6m / 12m
Surface Finish
Pickled & Passivated / Polished
Connection Type
Butt-welded / Flanged
Pressure Rating
Up to 100 bar (depending on schedule)
Manufacturing Process Table:
Step
Description
Raw Material Selection
High-quality duplex stainless steel billets
Forming
Hot or cold forming into pipe shape
Welding
TIG / MIG welding for strong and uniform joints
Heat Treatment
Solution annealing to optimize corrosion resistance and mechanical properties
Surface Treatment
Pickling and passivation for smooth, corrosion-resistant surface
Inspection & Testing
Hydrostatic, ultrasonic, and dimensional inspections
Packaging
Protective packaging for safe delivery
Uses / Applications Table:
Industry / Application
Description
Chemical Industry
Transport of acids, alkalis, and corrosive chemicals
Petrochemical Industry
High-pressure pipelines in refineries and process systems
Offshore & Marine
Seawater piping and corrosion-resistant applications
Power Generation
Process and cooling pipelines in power plants
Water Treatment & Desalination
Piping for industrial water and brine systems
Advantages:
High Strength: Duplex structure provides superior mechanical performance for high-pressure systems.
Corrosion Resistant: Excellent resistance to chloride, pitting, and crevice corrosion.
Durable & Long-Lasting: Minimal maintenance with extended service life.
Smooth Surface Finish: Reduces scaling, fouling, and contamination risk.
Versatile Applications: Ideal for chemical, petrochemical, offshore, and industrial pipelines.
FAQ:
Q: Can this pipe be used for seawater or chloride-containing fluids?
A: Yes, S31803 duplex stainless steel provides excellent resistance to chloride-induced corrosion.
Q: Are custom sizes available?
A: Yes, outer diameter, wall thickness, and length can be customized to project requirements.
Q: Can it handle high-pressure pipelines?
A: Absolutely, S31803 duplex steel is designed for high-pressure chemical and industrial applications.
Q: How is quality ensured?
A: Pipes undergo hydrostatic, ultrasonic, and dimensional inspections in accordance with ASME SA789 standards.
The S31803 duplex stainless steel pipe 50.8mm ASME SA789 offers high strength, corrosion resistance, and long-term reliability, making it the ideal choice for chemical, petrochemical, offshore, and industrial fluid transport applications.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1997
Total Annual:
40 Million-60 Million
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Wuxi korer stainless steel ,Co.,Ltd. professionally manufacture welded stainless steel pipes&tubes.
It covers 30000 square meters and The capability is 10000 metric tons per year.
It is one of the biggest manufacturers of welded stainless steel pipes&tubes in china.
... Wuxi korer stainless steel ,Co.,Ltd. professionally manufacture welded stainless steel pipes&tubes.
It covers 30000 square meters and The capability is 10000 metric tons per year.
It is one of the biggest manufacturers of welded stainless steel pipes&tubes in china.
...
