Duplex Steel S31803 Screw Duplex Steel S31803 Screw

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Duplex Steel S31803 Screw Duplex Steel S31803 Screw

Name: Duplex Steel S31803 Screw Duplex Steel S31803 Screw
Brand: Skyland Metal & Alloys Inc.
Price: 100.0 INR
Availability: InStock

Price 100.0 INR/ Piece

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MOQ : 1 Piece

Duplex Steel S31803 Screw Duplex Steel S31803 Screw Specification

Recyclable
Yes

Product Form
Screw, fully threaded

Heat Resistance
Yes

Chemical Composition
Cr 21-23%, Ni 4.5-6.5%, Mo 2.5-3.5%, N 0.08-0.20%, Mn 2% max, Si 1% max, C 0.03% max, P 0.03% max, S 0.02% max, balance Fe

Coating Type
Self-finish / Passivated (coating on request)

Corrosion Resistant
Excellent resistance to pitting, crevice and general corrosion

Size
Customizable (length & diameter as required)

Temper
Annealed / Solution Annealed

Hardness
250 HB (max)

Width
Customizable as per requirements

Tensile Strength
620 MPa (min)

Diameter
M2 to M24 or as specified

Material Composition %
Duplex 2205 composition (see detailed chemical composition)

Product Name
Duplex Steel S31803 Screw

Steel Type
Duplex Stainless Steel

Steel Product Type
Screw / Fastener

Grade
UNS S31803 / S32205

Thickness
As per screw diameter (standard range: M2-M24 or as specified)

Shape
Other

Steel Standard
ASTM A479 / A182 / A276

Surface
Bright / Polished / Passivated

Composition
Duplex (ferritic-austenitic microstructure)

Application
Used in chemical, petrochemical, oil & gas, marine, and construction industries

Dimension (L*W*H)
Varies as per specification (common sizes available on request)

Weight
Depends on size and length

Color
Metallic Silver

Material Grade
S31803

Finish Type
Smooth, bright, and clean finish

Usage
Structural, mechanical assemblies, and marine fittings

Standards Compliance
ASTM / DIN / ISO / BS

Minimum Order Quantity
100 pieces or as agreed

Lead Time
1-2 weeks depending on quantity

Installation
Requires screwdriver or power tool

Availability
Readily available in various sizes

Packaging
Standard export worthy packing or as specified

Rust Proof
Yes, in normal atmospheric and many aggressive conditions

Head Type
Phillips flat head

Thread Coverage
Full thread

Magnetic Properties
Slightly magnetic due to duplex structure

Thread Type
Metric / UNC / UNF (as per requirement)

Duplex Steel S31803 Screw Duplex Steel S31803 Screw Trade Information

Minimum Order Quantity
1 Piece

Delivery Time
7 Days

Duplex Steel S31803 Screw Duplex Steel S31803 Screw About

B16 is a critical chemical found in Duplex steel screws S31803. It is an alloy blend of chromium, nickel and molybdenum, all designed to provide superior corrosion protection, greater strength and higher heat tolerance. This particular mixture is melted at much higher temperatures than other screws and has shorter cooling times. Combining these elements creates a more robust and lightweight product that is ideal for many different applications, especially those requiring reliable results under demanding conditions. Its unique blend of traits ensures that the screw will last much longer than traditional metal screws, making it the perfect choice for residential and industrial projects.

Outstanding Corrosion Resistance

Duplex Steel S31803 screws deliver excellent protection against rust, pitting, and crevice corrosion even in highly aggressive environments. This makes them particularly suitable for offshore, marine, and chemical processing facilities where superior corrosion performance is required for safety and longevity.

Versatile Applications and Customization

These screws are widely used in structural and mechanical assemblies, marine fittings, and oil & gas installations due to their combination of high tensile strength and customizable dimensions. Both diameter (M2-M24 or bespoke) and length can be tailored to specific project requirements, offering flexibility to engineers and suppliers.

High Strength and Lasting Performance

With a minimum tensile strength of 620 MPa and a maximum hardness of 250 HB, Duplex Steel S31803 screws ensure reliable mechanical performance under heavy loads. The dual-phase microstructure provides balanced strength and ductility, reducing the likelihood of failure in demanding operating conditions.

FAQ's of Duplex Steel S31803 Screw Duplex Steel S31803 Screw:

Q: How are Duplex Steel S31803 screws installed?

A: Duplex Steel S31803 screws are installed using a Phillips screwdriver or a suitable power tool. Their flat-head design ensures a flush fit, making them ideal for assemblies requiring a smooth surface.

Q: What benefits do Duplex Steel S31803 screws provide over traditional stainless steel fasteners?

A: These screws offer superior resistance to various forms of corrosion, especially in chloride-rich or harsh industrial environments, combined with higher tensile strength and moderate magnetic properties due to their duplex microstructure.

Q: What packing and delivery options are available for Duplex Steel S31803 screws?

A: Screws are provided in export-worthy packaging, ensuring safe transit, or can be packed as per client specifications. Lead times typically range from 1 to 2 weeks based on order quantity and customization needs.

Q: Where are Duplex Steel S31803 screws commonly used?

A: They are predominantly used in the chemical, petrochemical, oil & gas, marine, and construction sectors-anywhere a combination of strength and corrosion resistance is crucial.

Q: What customization options are available for size and finish?

A: Customers can request screws in sizes ranging from M2 to M24 in diameter and in various lengths. The finish can be bright, polished, or passivated, with additional coatings available upon request.

Q: Are Duplex Steel S31803 screws rust-proof and suitable for aggressive environments?

A: Yes, they are rust-proof under normal atmospheric conditions and many aggressive industrial environments, offering lasting performance and durability.