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Duplex Steel S31803 Channels

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

Price 500.0 INR/ Kilograms

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MOQ : 1 Kilograms

Duplex Steel S31803 Channels Specification

Tensile Strength
Min. 620 MPa

Recyclable
Yes

Chemical Composition
Cr 21-23%, Ni 4.5-6.5%, Mo 2.5-3.5%, N 0.08-0.2%, Mn 2%, Si 1%, C 0.03% max, S 0.02% max, P 0.03% max, Fe balance

Hardness
Max. 290 HB

Temper
Annealed

Product Form
Hot Rolled Channel

Size
As per requirement (length up to 12 meters or cut-lengths)

Width
Custom & Standard Sizes Available

Coating Type
Uncoated or specified surface finish

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

Heat Resistance
Yes

Corrosion Resistant
Excellent corrosion resistance to pitting and crevice

Product Name
Duplex Steel S31803 Channel

Steel Type
Duplex Stainless Steel

Steel Product Type
Structural Channel

Grade
UNS S31803 (equivalent to ASTM A276/SA276)

Thickness
Typically 4 mm to 20 mm (customization available)

Shape
Channel (C/U Shape)

Steel Standard
ASTM A276, ASTM A484, EN 10088, ASME SA276

Surface
Pickled, Shot Blasted, Polished or as specified

Composition
Duplex stainless steel S31803

Application
Construction, Structural Support, Engineering, Marine, Petrochemicals, Oil & Gas, Paper & Pulp Industries

Dimension (L*W*H)
Can be customized (common sizes: 100-350 mm web height)

Weight
As per size and length; calculated on order

Color
Metallic silver-grey

Material Grade
S31803

Finish Type
Mill, Polished or as per customer requirement

Usage
Load bearing structures, Frames, Supports

Forming Process
Hot Rolled or Cold Finished depending on specification

Machinability
Fair, requires slow speeds and strong tooling

Impact Strength
High resistance to mechanical stress and fatigue

Magnetic Properties
Slightly magnetic due to duplex structure

Density
~7.8 g/cm3

Standards Compliance
ASTM, EN, ASME, JIS as required

Test Certification
EN 10204 3.1 / 3.2 available upon request

Weldability
Good, suitable for all standard welding methods

Elongation at Break
Min. 25%

Duplex Steel S31803 Channels Trade Information

Minimum Order Quantity
1 Kilograms

Delivery Time
7 Days

Duplex Steel S31803 Channels About

Duplex Steel S31803 Channel is a structural section that offer a unique combination of high strength and excellent resistance to stress corrosion cracking, pitting and crevice corrosion. Their dual-phase microstructure, consisting of austenite and ferrite ensures superior mechanical properties and durability, making them ideal for applications in industries

Robust Mechanical and Corrosion Performance

Duplex Steel S31803 Channels provide exceptional strength and fatigue resistance, with a minimum tensile strength of 620 MPa and a high elongation at break of at least 25%. Their unique duplex structure results in remarkable resilience against mechanical stress and offers outstanding corrosion protection, especially in challenging marine, petrochemical, and structural applications.

Versatile Customization and Compliance

Manufactured as C or U-shaped structural profiles, these channels can be tailored to specific width, web height, and thickness requirements, accommodating both standard and custom sizes. Each product complies with ASTM, EN, ASME, and JIS standards, and certified test reports (EN 10204 3.1/3.2) are available on request, ensuring quality across industries such as oil & gas, construction, and paper & pulp.

FAQ's of Duplex Steel S31803 Channels:

Q: How are Duplex Steel S31803 Channels manufactured?

A: These channels are produced through hot rolling or cold finishing, depending on the required specifications. The annealed temper ensures desirable mechanical properties, while surface finishes such as pickled, shot-blasted, or polished can be applied based on customer needs.

Q: What advantages does Duplex Steel S31803 offer in structural applications?

A: S31803 offers high impact strength, excellent resistance to corrosion, and good weldability. Its duplex structure provides superior mechanical stability and fatigue resistance, making it ideal for load-bearing frameworks and environments exposed to aggressive chemicals or seawater.

Q: When should I choose Duplex Steel S31803 Channels over conventional stainless steel channels?

A: Select S31803 channels when projects demand high strength-to-weight ratios combined with enhanced corrosion resistance, such as in marine, petrochemical, or structural engineering settings. Their performance is superior to many standard steels, particularly in harsh environments.

Q: Where can these channels be used effectively?

A: Common usage includes structural supports, construction frameworks, engineering assemblies, and load-bearing components in industries like marine, oil & gas, paper & pulp, and petrochemicals. Their adaptability to custom sizes makes them suitable for varied dimensional requirements.

Q: What is the process for welding Duplex Steel S31803 Channels?

A: These channels exhibit good weldability and can be joined using all standard welding techniques without significant preheating. However, welding procedures should minimize heat input and interpass temperature to maintain the channel's duplex structure and mechanical integrity.

Q: How is the machinability of Duplex Steel S31803 Channels?

A: The machinability is fair; slow speeds, robust tooling, and proper cooling are advised due to the steel's high strength and work-hardening characteristics. Using specialized equipment ensures precise results and tool longevity.

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