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Super Duplex Steel S32750 Stud Bolts

Name: Super Duplex Steel S32750 Stud Bolts
Brand: Skyland Metal & Alloys Inc.
Price: 500.0 INR
Availability: InStock

Price 500.0 INR/ Kilograms

Get a Price/Quote

MOQ : 1 Kilograms

Super Duplex Steel S32750 Stud Bolts Specification

Chemical Composition
Approximately 25% Cr, 7% Ni, 4% Mo, 0.25% N, balance Fe

Corrosion Resistant
Excellent, especially to chloride stress corrosion and pitting

Width
As per requirement

Material Composition %
Cr 24-26%, Ni 6-8%, Mo 3-5%, N 0.24-0.32%, Fe balance

Hardness
32 HRC

Heat Resistance
Yes

Coating Type
None/Optional coating as per request

Diameter
M6 to M48 or custom

Size
Customized as per requirement

Temper
Solution Annealed

Product Form
Stud Bolt

Recyclable
Yes

Tensile Strength
800 MPa

Product Name
Super Duplex Steel S32750 Stud Bolts

Steel Type
Super Duplex Stainless Steel

Steel Product Type
Stud Bolts

Grade
UNS S32750

Thickness
Not applicable (threaded rod form)

Shape
Cylindrical, Threaded

Steel Standard
ASTM A182, ASTM A276, ASTM A479, ASTM A193

Surface
Bright, Passivated

Composition
Super Duplex Alloy

Application
Oil & Gas, Petrochemical, Chemical Processing, Power Plants, Desalination plants

Dimension (L*W*H)
Custom/Standard sizes available as per specifications

Weight
Varies as per size & length

Color
Metallic Silver

Material Grade
S32750

Finish Type
Polished / Passivated

Usage
Connecting flanges, pipelines, and structural assemblies

Thread Direction
Right Hand/Left Hand options available

Testing
Ultrasonic, Hardness, PMI, Dimensional, Mechanical & Corrosion Tests

Fatigue Resistance
Excellent

Manufacturing Process
Machined & Thread Rolled

Magnetic Permeability
Low to Moderate

Elongation
Minimum 15%

Thread Type
Metric/UNC/UNF/BSW as specified (coarse/fine thread options)

Packing
Wooden Boxes, Carton, Palletized

Yield Strength
Minimum 550 MPa

Non-magnetic
Mostly non-magnetic

Temperature Range
-50C to +300C

Lead Time
2-4 weeks depending on quantity and size

Impact Strength
High at sub-zero temperatures

Super Duplex Steel S32750 Stud Bolts Trade Information

Minimum Order Quantity
1 Kilograms

Delivery Time
7 Days

About Super Duplex Steel S32750 Stud Bolts

Super Duplex Steel S32750 stud bolts are high-performance fasteners for harsh environments. These bolts are 25% chromium, 4% molybdenum, and 7% nickle. This specific combination provides them with a dual-phase microstructure of austenite and ferrite. You get the strength of ferritic steel and the corrosion resistance of austenitic steel in one part. In the industry, these are often called Grade 2507 fasteners. They are used primarily in offshore oil and gas, desalination plants, and chemical processing because they handle chloride-induced stress corrosion cracking very well.

Exceptional Corrosion Resistance

S32750 stud bolts exhibit outstanding corrosion resistance, particularly against chloride-induced stress corrosion cracking and pitting, making them well-suited for harsh environments such as offshore platforms, brine, and chemical processing units. Their robust chemical composition, with high chromium, nitrogen, and molybdenum content, ensures longevity even in the most severe conditions.

Certified Quality and Customization

These stud bolts are manufactured and tested to stringent international standards such as ASTM, ASME, DIN, EN, and ISO. Multiple certifications, including Mill Test Certificate, 3.1/B, and third-party inspection, are available. Sizes, threading, and finishes can be customized to exact project requirements, ensuring optimal fit and performance for every application.

Versatile Application Across Industries

Super Duplex Steel S32750 Stud Bolts are ideal for connecting flanges, pipelines, and critical structural assemblies in oil & gas, petrochemical, chemical, power, and desalination plants. Their high fatigue resistance, excellent machinability, and adaptability to seawater and aggressive chemical media contribute to their preferred use in long-term, high-demand installations.

FAQ's of Super Duplex Steel S32750 Stud Bolts:

Q: How do Super Duplex Steel S32750 Stud Bolts handle corrosive environments?

A: These stud bolts provide excellent corrosion resistance, particularly in chloride-containing and acidic environments due to their high chromium, nickel, and molybdenum content. They are specifically designed for use in seawater, brine, and other aggressive media, resisting pitting, crevice corrosion, and chloride stress corrosion cracking.

Q: What thread types and sizes are available for these stud bolts?

A: S32750 stud bolts are available in Metric, UNC, and UNF threads. Threading options include partial or full thread as specified. Diameters range from M6 to M48 or can be customized according to project requirements, ensuring compatibility with various flange and connection standards.

Q: When should these stud bolts be used over standard stainless steel bolts?

A: They should be chosen for applications demanding high mechanical strength, superior corrosion resistance, and durability under dynamic loads. This is especially important in industries such as oil & gas, petrochemical, and desalination where exposure to chlorides, brine, and fluctuating pressures is common.

Q: Where are Super Duplex Steel S32750 Stud Bolts most commonly utilized?

A: These bolts are widely used in connecting pipelines, flanges, and structural assemblies within oil & gas platforms, petrochemical plants, chemical processing facilities, power plants, and desalination units due to their robustness and longevity in harsh operating conditions.

Q: What certificates are provided with the stud bolts to ensure quality compliance?

A: Every order can be supplied with a Mill Test Certificate, 3.1/B certification, and third-party inspection documentation. Bolts are manufactured in accordance with ASTM, ASME, DIN, EN, and ISO standards, ensuring full traceability and adherence to industrial compliance norms.

Q: How does the packaging process ensure bolt integrity during shipment?

A: Stud bolts are packed in sturdy wooden boxes, cartons, or as per customer requirements to prevent damage during transit. The packaging method is carefully selected to safeguard the bolts from moisture, physical shocks, and contaminations, maintaining their high-quality finish and structural integrity.

Q: What are the main benefits of choosing Super Duplex Steel S32750 Stud Bolts for critical connections?

A: The primary benefits include high strength, excellent corrosion and fatigue resistance, good machinability, long service life, and compliance with international standards. These attributes make them a trusted solution for critical, high-performance, and corrosive environment applications.

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