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Duplex Steel S31803 Foil

Price 500.0 INR/ Piece

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MOQ : 1 Kilograms

Duplex Steel S31803 Foil Specification

Chemical Composition
Cr 21.0-23.0%, Ni 4.5-6.5%, Mo 2.5-3.5%, N 0.08-0.20%, Mn 2.0%, Si 1.0%, C 0.03%, P 0.03%, S 0.02%, Fe Balance

Hardness
290 HB

Width
Customizable (typically 10 mm to 1000 mm)

Size
Custom sizes available

Diameter
Custom Coil/ Roll Diameter

Coating Type
Uncoated, Natural finish

Material Composition %
Cr 21.0-23.0%, Ni 4.5-6.5%, Mo 2.5-3.5%, N 0.08-0.20%

Temper
Soft, Half Hard, Full Hard

Heat Resistance
Yes

Tensile Strength
620 MPa min

Product Form
Foil (Coil/Roll)

Recyclable
Yes

Corrosion Resistant
Yes, excellent resistance to pitting, crevice, and stress corrosion

Product Name
Duplex Steel S31803 Foil

Steel Type
Duplex Stainless Steel

Steel Product Type
Foil

Grade
S31803 (UNS S31803, Duplex 2205)

Thickness
0.02 mm to 3 mm

Shape
Foil Roll, Strip

Steel Standard
ASTM A240, UNS S31803, EN 1.4462

Surface
Bright, Smooth, 2B, BA finish

Composition
Duplex Microstructure (Austenite + Ferrite)

Application
Heat exchangers, pressure vessels, chemical processing, marine industry, oil & gas, structural components

Dimension (L*W*H)
Customizable (as per requirement)

Weight
Varies based on dimensions and thickness

Color
Silvery Metallic

Material Grade
S31803

Finish Type
Bright/Polished/2B

Usage
Industrial, Marine, Oil & Gas, Chemical Processing

Weldability
Excellent, suitable for all standard welding processes

Lead Time
1-2 weeks (depends on size and quantity)

Service Temperature Range
-50C to +300C

Thermal Conductivity
19 W/mK at 20C

Shelf Life
Unlimited if stored properly

Density
7.8 g/cm3

Packaging Type
Coil, Wooden box, As required by customer

Elongation
25% minimum

Formability
Good

Yield Strength
450 MPa min

Magnetic Properties
Partially magnetic due to ferrite content

Duplex Steel S31803 Foil Trade Information

Minimum Order Quantity
1 Kilograms

Delivery Time
7 Days

Duplex Steel S31803 Foil About

Duplex Steel S31803 Foil is a versatile material used in many applications due to its desirable characteristics. This foil is made from austenite and ferrite and has better mechanical properties.

Unmatched Corrosion Resistance

Duplex Steel S31803 Foil stands out for its exceptional resistance to pitting, crevice, and stress corrosion. This makes it a preferred choice in aggressive environments like marine, chemical processing, and oil & gas sectors. The duplex microstructure also contributes to long-term durability, reducing maintenance cycles and ensuring performance under demanding conditions.

Superior Mechanical and Magnetic Properties

The foil offers a minimum tensile strength of 620 MPa, with a yield strength no less than 450 MPa and an elongation of at least 25%, ensuring flexibility and robustness. Its partially magnetic nature due to ferrite content is advantageous in applications where magnetic response is required. These qualities, combined with its softness or selectable temper, make it ideal for versatile engineering tasks.

Customizable for Your Application

Available in a range of thicknesses, widths, tempers, and finishes, Duplex Steel S31803 Foil can be crafted to your precise requirements. Whether you need coil, roll, or strip form, and whether your usage scenario is industrial, marine, or structural, this material adapts accordingly. Efficient lead times and custom dimensions support project timelines.

FAQ's of Duplex Steel S31803 Foil:

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

A: Duplex Steel S31803 Foil is employed in heat exchangers, pressure vessels, marine components, and oil & gas processing equipment due to its high strength, excellent corrosion resistance, and good formability. It suits environments where mechanical durability and chemical stability are essential.

Q: What benefits does the duplex microstructure provide for this foil?

A: The duplex (austenite + ferrite) microstructure grants the foil enhanced strength and improved resistance to stress corrosion cracking, pitting, and crevice corrosion, making it more reliable than standard austenitic or ferritic stainless steels in harsh environments.

Q: When should this foil be used regarding temperature limits?

A: Duplex Steel S31803 Foil performs optimally between -50C and +300C. It retains its mechanical and corrosion-resistant properties within this service temperature range, making it suitable for both cryogenic and moderately high-temperature applications.

Q: What makes Duplex Steel S31803 Foil easy to work with during fabrication?

A: Its good formability and excellent weldability allow for straightforward fabrication using all standard welding processes. Various tempers-soft, half hard, and full hard-are available, providing flexibility for bending and shaping during manufacturing.

Q: How is the foil packaged and delivered to suit client needs?

A: Packaging options include coils, wooden boxes, or as customized per customer requirements, ensuring safe transport and storage. Lead time for delivery is typically 1-2 weeks, depending on the size and quantity of the order.

Q: Where does the foil's partial magnetic property come from and how is it beneficial?

A: The partial magnetism arises from its ferrite content in the duplex microstructure. This characteristic can be beneficial in applications where a magnetic response is desired for detection, separation, or specialized fabrication processes.

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