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Duplex Steel S31803 Bars

Name: Duplex Steel S31803 Bars
Brand: Skyland Metal & Alloys Inc.
Price: 500.00 INR
Availability: InStock

Price 500.00 INR/ Kilograms

Get a Price/Quote

MOQ : 1 Kilograms

Duplex Steel S31803 Bars Specification

Corrosion Resistant
Excellent, especially to chloride stress corrosion

Coating Type
None / Uncoated, but can be coated as required

Size
Customized

Tensile Strength
620 MPa min

Temper
Annealed / Solution Annealed

Recyclable
Yes

Heat Resistance
Yes

Product Form
Bar / Rod

Hardness
293 HB max

Width
Customizable as per requirements

Diameter
6mm to 350mm or as per requirement

Material Composition %
Cr: 21-23%, Ni: 4.5-6.5%, Mo: 2.5-3.5%, N: 0.08-0.20%

Product Name
Duplex Steel S31803 Bars

Steel Type
Duplex Stainless Steel

Steel Product Type
Bars / Rods

Grade
UNS S31803 (Duplex 2205)

Thickness
Customizable / As required

Shape
Round Bar

Steel Standard
ASTM A276, ASTM A479, EN 1.4462, UNS S31803

Surface
Bright, Polished, Peeled, Turned, Cold Drawn, Smooth

Composition
22% Cr, 5-6% Ni, 3% Mo, balance Fe, with N

Application
Oil & Gas, Petrochemical, Chemical, Marine, Pulp & Paper, Power Plant, Construction

Dimension (L*W*H)
As per order / Custom sizes available

Weight
Depends on dimensions and length

Color
Bright Silver Metallic

Material Grade
Duplex S31803

Finish Type
Bright Polished, Peeled, Turned, Cold Drawn

Usage
Structural, Engineering, Machining, Piping, Fabrication

Delivery Condition
Hot Rolled / Cold Drawn / Annealed

Yield Strength
450 MPa min

Weldability
Good (with commonly used processes)

Density
7.80 g/cm3

Magnetic Property
Magnetic in nature due to ferritic phase

Impact Resistance
High, even at sub-zero temperatures

Elongation
25% min

Machinability
Moderate (better than austenitic SS)

Duplex Steel S31803 Bars Trade Information

Minimum Order Quantity
1 Kilograms

Delivery Time
7 Days

Duplex Steel S31803 Bars About

UNS S31803, also called Duplex Steel S31803 bars, is a type of duplex stainless steel well-known for its strength and resistance to corrosion. These bars have a microstructure divided almost 50/50 between austenite and ferrite and offer high performance in harsh conditions. S31803 is used in many industries because of its excellent properties, so it is suitable for applications that must be both strong and long-lasting.

Superior Corrosion and Impact Resistance

Duplex Steel S31803 Bars combine impressive resistance to corrosion with high impact strength, making them ideal for environments that are aggressive or experience temperature fluctuations. Their unique composition (21-23% Cr, 4.5-6.5% Ni, 2.5-3.5% Mo, and added N) ensures durability against chloride-induced stress corrosion, delivering reliable performance especially in marine and chemical processing applications.

Versatile Applications Across Multiple Industries

These bars serve a wide range of industries, including oil & gas, petrochemical, power plants, pulp & paper, and construction. Their customizable dimensions, shapes, and finishes accommodate diverse requirements for structural, engineering, piping, and fabrication projects, supporting both critical and standard installations.

Custom Manufacturing and Finishing Options

Duplex S31803 bars are available in customizable sizes (diameter: 6mm-350mm), lengths, and finishes to meet project-specific needs. Delivery conditions such as annealed, hot-rolled, or cold-drawn enhance mechanical properties, while bright, peeled, turned, or polished surfaces provide durability and aesthetic appeal. Coating options can also be supplied if needed.

FAQ's of Duplex Steel S31803 Bars:

Q: How do the magnetic properties of Duplex Steel S31803 Bars affect their usage?

A: Duplex Steel S31803 Bars are magnetic due to their ferritic phase, making them suitable for applications that require magnetic detection or support in specific engineering and industrial processes.

Q: What benefits does Duplex S31803 offer in corrosive environments?

A: Their excellent resistance to chloride stress corrosion and high chromium, nickel, and molybdenum content ensure superior performance in corrosive settings such as marine, chemical, and oil & gas industries.

Q: When should Duplex Steel S31803 Bars be used instead of austenitic stainless steel bars?

A: Choose Duplex S31803 bars whenever higher yield strength, improved stress corrosion resistance, and moderate machinability are needed, especially where cost efficiency and long-term durability are vital-typical for marine structures and industrial piping.

Q: Where can I source Duplex Steel S31803 Bars with custom dimensions and finishes?

A: These bars are available through specialized exporters, manufacturers, suppliers, and traders who offer customized dimensions, finishes (bright, peeled, turned), and delivery conditions (hot rolled, cold drawn, annealed) to match specific project requirements.

Q: What is the recommended process for welding Duplex S31803 Bars?

A: Duplex S31803 bars can be welded using most common welding techniques. However, using low heat input and interpass temperature control is recommended to maintain their mechanical and corrosion-resistant properties.

Q: How does the mechanical strength of Duplex S31803 Bars benefit engineering projects?

A: With a yield strength of at least 450 MPa and a minimum tensile strength of 620 MPa, these bars provide robust support for load-bearing applications, reducing material usage and enhancing structure longevity.

Q: What makes Duplex Steel S31803 Bars preferable for sub-zero temperature applications?

A: They maintain high impact resistance even at sub-zero temperatures, making them ideal for use in cold climates or cryogenic service where structural integrity is critical.

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