Super Duplex Steel UNS S32750 Filler Wires are high-performance welding consumables designed for joining super duplex stainless steel components that require exceptional corrosion resistance, high strength, and long-term durability in aggressive environments. Super duplex stainless steels are known for their unique microstructure consisting of a balanced mixture of ferrite and austenite phases, which provides superior mechanical strength and excellent resistance to corrosion.
UNS S32750, commonly referred to as Super Duplex 2507, is one of the most advanced duplex stainless steel grades available today. It contains higher levels of chromium, molybdenum, and nitrogen compared to standard duplex grades, which significantly improves its resistance to pitting, crevice corrosion, and stress corrosion cracking.
Super Duplex Steel S32750 filler wires are specifically designed to match the chemical composition and mechanical properties of super duplex stainless steels. They ensure strong, corrosion-resistant weld joints capable of performing in highly corrosive environments such as offshore platforms, marine applications, and chemical processing plants.
These filler wires are widely used for welding super duplex stainless steel components in industries including oil and gas, petrochemical processing, desalination plants, offshore structures, marine engineering, and power generation.
Manufactured in compliance with international welding standards, Super Duplex Steel UNS S32750 filler wires offer excellent weldability, smooth arc characteristics, and consistent weld bead formation. These features help ensure high-quality welds and reliable performance in critical industrial applications.
Because of their superior corrosion resistance and mechanical strength, Super Duplex S32750 filler wires are an ideal choice for applications where conventional stainless steels may not provide sufficient durability or corrosion protection.
The chemical composition of Super Duplex Steel UNS S32750 filler wires is carefully controlled to maintain the balanced duplex microstructure and provide superior corrosion resistance and strength.
Typical chemical composition includes:
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Nitrogen (N) | 0.24 – 0.32 |
| Manganese (Mn) | ≤ 1.2 |
| Silicon (Si) | ≤ 0.8 |
| Carbon (C) | ≤ 0.03 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.02 |
| Iron (Fe) | Balance |
The high chromium, molybdenum, and nitrogen content provides exceptional resistance to localized corrosion such as pitting and crevice corrosion while improving mechanical strength.
Super Duplex Steel UNS S32750 filler wires provide excellent mechanical properties that make them ideal for heavy-duty structural and high-pressure applications.
Typical mechanical properties include:
| Property | Value |
|---|---|
| Tensile Strength | ≥ 750 MPa |
| Yield Strength | ≥ 550 MPa |
| Elongation | ≥ 25% |
These properties ensure weld joints can withstand high mechanical loads and pressure conditions in extreme industrial environments.
Super Duplex Steel UNS S32750 filler wires offer stable physical characteristics that support their performance in demanding industrial welding applications.
Typical physical properties include:
| Property | Value |
|---|---|
| Density | 7.8 g/cm³ |
| Melting Range | 1350 – 1400°C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 14 W/m·K |
| Coefficient of Thermal Expansion | 13 µm/m°C |
These physical characteristics provide excellent dimensional stability and resistance to thermal stresses in welded components.
Super Duplex Steel UNS S32750 filler wires are available in a variety of sizes and forms to suit different welding processes and industrial applications.
Typical specifications include:
These specifications ensure compatibility with different welding techniques and industrial requirements.
Super Duplex Steel UNS S32750 filler wires are widely used in industries where superior corrosion resistance and high mechanical strength are essential.
Oil and Gas Industry
Offshore and Marine Applications
Chemical Processing Industry
Desalination Plants
Petrochemical Industry
Power Generation Industry
Super Duplex Steel UNS S32750 filler wires undergo strict quality control procedures to ensure consistent performance and compliance with international standards.
Typical inspection procedures include:
These tests ensure that the filler wires meet industry specifications and provide reliable welding performance.
Super Duplex Steel UNS S32750 filler wires are carefully packaged to prevent contamination and maintain quality during transportation and storage.
Common packaging options include:
Protective packaging materials help prevent moisture exposure, mechanical damage, and contamination.
Virami Steel Hub is a trusted manufacturer, supplier, stockist, and exporter of Super Duplex Steel UNS S32750 Filler Wires in Mumbai, India. With extensive experience in supplying premium welding consumables, we ensure high-quality products that meet international standards and industrial requirements.
Our Super Duplex S32750 filler wires are manufactured using high-quality raw materials and advanced production processes to ensure superior corrosion resistance, strength, and welding performance.
We maintain ready stock availability in multiple sizes, allowing us to meet urgent industrial requirements and ensure fast delivery across India and global markets.
Our products comply with international standards such as AWS, ASTM, and ASME, ensuring consistent quality and reliability.
Key Benefits of Choosing Virami Steel Hub
Virami Steel Hub is committed to delivering precision-engineered welding consumables that ensure durability, performance, and reliability in demanding industrial applications.
Super Duplex Steel UNS S32750 filler wires are advanced welding consumables designed for applications requiring exceptional corrosion resistance, high strength, and durability. Their superior resistance to pitting, crevice corrosion, and stress corrosion cracking makes them ideal for industries such as oil and gas, offshore engineering, marine applications, and chemical processing.
With excellent weldability, high mechanical strength, and superior corrosion resistance, Super Duplex S32750 filler wires ensure reliable weld joints and long-term performance in critical industrial environments.
Using high-quality Super Duplex Steel UNS S32750 filler wires manufactured to international standards ensures optimal welding performance and durability in demanding applications.
