Send Inquiry

Request To Call Back

Duplex Steel S31803 Tubing

Name: Duplex Steel S31803 Tubing
Brand: Skyland Metal & Alloys Inc.
Price: 500.0 INR
Availability: InStock

Price 500.0 INR/ Kilograms

Get a Price/Quote

MOQ : 1 Kilograms

Duplex Steel S31803 Tubing Specification

Tensile Strength
Min 620 MPa

Diameter
Available from 6 mm to 1000 mm (customizable)

Corrosion Resistant
Yes, high resistance to pitting and crevice corrosion

Width
Customizable as per requirement

Material Composition %
Cr 21-23, Ni 4.5-6.5, Mo 2.5-3.5, N 0.08-0.2

Hardness
Max 290 HB

Heat Resistance
Yes

Coating Type
Uncoated / as per order

Temper
Annealed / As per order

Product Form
Tubing / Pipe

Size
Custom sizes available

Recyclable
Yes, 100%

Product Name
Duplex Steel S31803 Tubing

Steel Type
Duplex Stainless Steel

Steel Product Type
Welded / Seamless Tubing

Grade
UNS S31803

Thickness
0.5 mm to 50 mm (customized available)

Shape
Round Tubing

Steel Standard
ASTM A789 / A790, ASME SA789 / SA790

Surface
Polished / Pickled / Annealed

Composition
22% Cr, 5-6.5% Ni, 3-3.5% Mo, balance Fe with N and Mn

Application
Oil & Gas, Petrochemical, Heat Exchanger, Marine, Chemical Processing

Dimension (L*W*H)
Available in Multiple Lengths & Diameters (customizable)

Weight
Varies based on size & thickness

Color
Silver / Metallic Grey

Material Grade
S31803

Finish Type
Mill Finish / Bright Annealed / Polished

Usage
Industrial piping, fluid transfer, high corrosion environments

Standards Compliance
ASTM, ASME, EN, DIN, JIS

Weldability
Excellent

Impact Strength
High impact strength at both room and sub-zero temperatures

End Finishing
Plain End / Beveled End / Threaded End as specified

Magnetic Properties
Slightly magnetic

Available Lengths
1 meter to 12 meters, or cut lengths as ordered

Delivery Condition
Solution Annealed and Passivated

Pressure Rating
Suitable for high pressure applications

Duplex Steel S31803 Tubing Trade Information

Minimum Order Quantity
1 Kilograms

Delivery Time
7 Days

About Duplex Steel S31803 Tubing

Duplex Steel S31803 tubing is one of the most essential parts of industries as it is strong, corrosion resistant and has better mechanical properties. This tubing is made of duplex stainless steel S31803 with an equiaxed microstructure of both the austenite and ferrite phases. This composition makes S31803 tubing strong and durable; hence, it can be used in harsh conditions and operations.

Versatile Sizing and Finishes

Duplex Steel S31803 Tubing comes in a variety of sizes and finishes to cater to unique industrial requirements. Customize diameter, thickness, and length as needed, with surface options including polished, pickled, or bright annealed finishes. End finishings such as plain, beveled, or threaded can be chosen to ensure compatibility with your piping system.

Superior Strength and Corrosion Resistance

Engineered with a robust composition of chromium, nickel, and molybdenum, S31803 tubing offers high impact strength at both room and sub-zero temperatures. The duplex structure grants excellent resistance to pitting, crevice, and general corrosion, making these tubes suitable for high-pressure and corrosive environments.

Reliable Performance Across Industries

S31803 Tubing is utilized in sectors such as oil & gas, petrochemical, marine, chemical processing, and heat exchangers. Its excellent weldability and customizable options make it perfect for fluid transfer in demanding conditions, ensuring long-term reliability and safety.

FAQ's of Duplex Steel S31803 Tubing:

Q: How is Duplex Steel S31803 Tubing typically used in industrial applications?

A: This tubing is widely employed in oil and gas, petrochemical, marine, and chemical processing industries for tasks including fluid transfer, heat exchangers, and high-pressure piping systems. Its high strength and superior corrosion resistance make it ideal for demanding operational environments.

Q: What benefits does the excellent weldability of S31803 Tubing provide?

A: The excellent weldability facilitates easy fabrication and installation, allowing for strong, reliable joints that maintain the material's mechanical and corrosion-resistance properties. It saves time and resources during on-site assembly and system modification.

Q: When should I choose a plain, beveled, or threaded end for this tubing?

A: Select plain ends for welded connections, beveled ends for weld preparations, and threaded ends for ease of assembly or disassembly in threaded piping systems. The choice depends on your installation method and integration with existing piping infrastructure.

Q: What pressure and temperature ranges is this tubing suitable for?

A: Duplex Steel S31803 Tubing is designed for high-pressure applications and provides high impact strength down to sub-zero temperatures. It can also withstand continuous operating temperatures up to 300C without losing integrity.

Q: Where does S31803 Tubing excel compared to standard stainless steel tubes?

A: It outperforms standard stainless steels in highly corrosive or high-stress environments due to its duplex microstructure and alloying elements. It offers enhanced resistance to stress corrosion, pitting, and crevice corrosion while providing greater tensile strength.

Q: How does the production process ensure quality and durability?

A: The tubing is solution annealed and passivated to enhance its corrosion resistance and mechanical properties. Strict compliance with ASTM, ASME, EN, DIN, and JIS standards ensures consistent quality, reliability, and performance.

Q: What makes S31803 Tubing an environmentally conscious choice?

A: Because it is made from fully recyclable duplex stainless steel and designed for long service lives, S31803 tubing minimizes environmental impact and supports sustainable industrial practices.

Tell us about your requirement