Super Duplex Steel Ferralium 255 Fasteners

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Super Duplex Steel Ferralium 255 Fasteners

Price 500.0 INR/ Kilograms

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MOQ : 1 Kilograms

Super Duplex Steel Ferralium 255 Fasteners Specification

Hardness
Max. 30 HRC

Temper
Solution Annealed

Tensile Strength
Min. 800 MPa (UTS)

Size
Custom sizes as per order, standard and non-standard

Corrosion Resistant
Excellent in chloride and sulphide environments

Coating Type
Uncoated / self-finish (custom coatings available)

Chemical Composition
25% Cr, 5% Ni, 3.6% Mo, 2% Cu, 0.2% N (Ferralium 255 typical)

Material Composition %
Cr 24-26.5%, Ni 4.5-6.5%, Mo 2.9-3.9%, Cu 1.5-2.5%, N 0.1-0.25%

Width
Customized as per requirement

Product Form
Fastener (Bolt, Nut, Washer, Stud, Threaded Rod)

Heat Resistance
Yes

Recyclable
Yes

Diameter
M3 - M100 (or 3/16 to 4 nominal, as per requirement)

Product Name
Super Duplex Steel Ferralium 255 Fasteners

Steel Type
Super Duplex Stainless Steel

Steel Product Type
Nuts, Bolts, Washers, Studs, Threaded Rods

Grade
Ferralium 255 (UNS S32550)

Thickness
Available in multiple thicknesses as per requirement

Shape
Hexagonal, Round, Threaded, as per drawing/specification

Steel Standard
ASTM A182, ASTM A479, ASTM A276

Surface
Bright / Clean / Passivated

Composition
Duplex austenitic-ferritic stainless steel

Application
Marine, Chemical Processing, Oil & Gas, Desalination Plants, Mechanical & Structural Components

Dimension (L*W*H)
Available in various sizes, as per order requirements

Weight
Varies as per size and shape

Color
Metallic Silver / Grey

Material Grade
Ferralium 255 / S32550

Finish Type
Machined / Bright Finished

Usage
Industrial, Offshore, Marine, Petrochemical, Desalination, and Mechanical Applications

Bolt Types
Hex Bolt, Socket Cap, Stud, Shoulder, Custom Drawing Types

Impact Resistance
Excellent (Charpy V-notch tested)

Yield Strength
Min. 570 MPa

Magnetic Properties
Slightly magnetic due to duplex structure

Standards Available
DIN, ISO, ASTM, BS, JIS

Weldability
Good, though specialist procedures recommended

Resistance to Pitting & Crevice Corrosion
PREN > 40, excellent resistance

Washer Types
Plain, Spring, Toothed, and Custom

Packaging
Export sea-worthy, wooden boxes/crates/cartons

Machinability
Moderate; use adequate speed and cooling

Thread Type
Metric/UNC/UNF/BSW, as per spec

Nut Types
Hex, Nylock, Dome Nut available

Temperature Range
-50C to +300C (recommended for prolonged use)

Super Duplex Steel Ferralium 255 Fasteners Trade Information

Minimum Order Quantity
1 Kilograms

Delivery Time
7 Days

Super Duplex Steel Ferralium 255 Fasteners About

Super Duplex Steel Ferralium 255 Fasteners are becoming increasingly popular in various industries thanks to their high strength and superior corrosion resistance. But what precisely gives these fasteners their unique properties? The answer lies in their chemical composition, which includes a blend of chromium, molybdenum, nitrogen, and nickel. Adding these elements provides Ferralium 255 Fasteners with excellent corrosion resistance and remarkable resistance to pitting and crevice corrosion.

Engineered for Extreme Environments

Ferralium 255 fasteners are crafted to withstand the harshest conditions, including aggressive marine, offshore, and chemical processing settings. Their superior corrosion resistance and impact toughness make them ideal for applications where standard stainless steels fail. The solution-annealed duplex structure ensures longevity and consistent performance, even under fluctuating temperatures and corrosive agents.

Versatile Customization and Compliance

These fasteners are available in a wide variety of forms, including hex bolts, socket caps, studs, nuts, and washers. They meet globally recognized standards such as ASTM A182, A479, and A276, and can be tailored in size, shape, thread type, and coating according to project specifications. This level of versatility makes them suitable for both standard and specialty requirements in diverse industrial applications.

Reliable Performance in Demanding Applications

With a minimum yield strength of 570 MPa and tensile strength above 800 MPa, Super Duplex Steel Ferralium 255 fasteners offer robust mechanical support. Their moderate machinability allows for precise fabrication, while their excellent resistance to pitting, crevice corrosion, and stress corrosion cracking ensures safety and reliability in seawater, chloride, and sulphide-rich environments.

FAQ's of Super Duplex Steel Ferralium 255 Fasteners:

Q: How are Super Duplex Steel Ferralium 255 Fasteners used in marine applications?

A: Ferralium 255 fasteners are commonly used in marine and offshore environments to secure structures exposed to seawater and chloride-rich atmospheres. Their high resistance to corrosion and excellent mechanical properties ensure reliable performance and long service life in harsh saltwater conditions.

Q: What standards do Ferralium 255 fasteners conform to?

A: These fasteners are available in compliance with various international standards, including DIN, ISO, ASTM, BS, and JIS. They also meet specific standards such as ASTM A182, ASTM A479, and ASTM A276, ensuring quality and consistency for global industrial projects.

Q: When should I select Ferralium 255 fasteners over standard stainless steel options?

A: Choose Ferralium 255 fasteners when your application involves highly corrosive environments, such as chemical processing plants, desalination units, or marine systems, where traditional stainless steels may not offer sufficient resistance or durability. Their high PREN value and impact toughness make them ideal for such scenarios.

Q: Where can these fasteners be customized for specific requirements?

A: Super Duplex Steel Ferralium 255 fasteners can be tailored by manufacturers and suppliers to meet unique project needs. Customizations include size, thread type (Metric, UNC, UNF, BSW), fastener form (bolt, nut, washer, stud), and shape according to your provided drawings or specifications.

Q: What benefits do Ferralium 255 fasteners offer over conventional fasteners?

A: Key benefits include exceptional resistance to pitting and crevice corrosion, high impact resistance, excellent mechanical strength, and suitability for extended use in temperatures ranging from -50C to +300C. They are slightly magnetic and recyclable, supporting both technical and environmental requirements.

Q: Describe the process for ensuring quality and durability of these fasteners.

A: Quality assurance involves solution annealing, Charpy V-notch impact testing, adherence to strict chemical composition and hardness limits, and thorough inspection according to relevant standards. Specialized packaging-such as export sea-worthy wooden crates-ensures product integrity during transportation.

Q: How should Ferralium 255 fasteners be handled during installation or fabrication?

A: Due to their moderate machinability, it is advisable to use appropriate cutting speeds, adequate cooling, and specialist welding procedures where required. Correct handling ensures optimal performance, particularly in applications demanding precise assembly and high-strength connections.

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