Super Duplex Stainless Steel 2304
Super Duplex Stainless Steel 2304
Super Duplex Stainless Steel 2304 (UNS S32304) is a high-performance duplex stainless steel grade engineered for excellent corrosion resistance, high strength, and durability in moderately aggressive environments. With a balanced austenitic-ferritic microstructure, this grade offers superior resistance to pitting, crevice corrosion, and stress corrosion cracking while maintaining good weldability and formability. Its high strength-to-weight ratio and toughness make it suitable for chemical, petrochemical, marine, and water treatment applications.
At Apar Alloys, we are a trusted stockist and supplier of Super Duplex 2304 (UNS S32304) materials, sourcing products from reputed global mills. Our inventory includes bars, sheets, plates, and round bars in a variety of sizes and finishes to meet diverse industrial needs. Every product undergoes stringent testing and inspection to ensure reliability, performance, and long-term durability.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| 2304 | AISI 2304 | S32304 | ASTM A240 / A789 / A790 | ASTM A182 | 1.4362 | X2CrNiN23-4 |
General Characteristics
Super duplex austenitic-ferritic stainless steel
Excellent resistance to pitting and crevice corrosion
High tensile and yield strength
Superior resistance to stress corrosion cracking
Good weldability and formability
Suitable for moderately aggressive environments
Chemical Composition (nominal) %
| Element | C | Mn | Si | Cr | Ni | Mo | N | S | P | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S32304 | ≤0.03 | 1.5–3.0 | ≤1.0 | 22.0–24.0 | 4.5–6.5 | 2.0–3.0 | 0.14–0.20 | ≤0.020 | ≤0.030 | Balance |
Applications
Chemical and petrochemical process equipment
Heat exchangers, pressure vessels, and storage tanks
Piping and fittings in offshore and marine applications
Desalination and water treatment systems
Pumps, valves, and shafts in corrosive environments
Structural components requiring high strength and corrosion resistance
Advantages
- Excellent resistance to pitting and crevice corrosion
- High strength and durability
- Superior resistance to stress corrosion cracking
- Good weldability and fabrication properties
- Long service life in moderately aggressive environments
- Reduced maintenance requirements
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 650 – 850 |
| Yield Strength (MPa) | ≥450 |
| Elongation (%) | 25 |
| Hardness (Brinell) | ≤290 HB |
Why Choose Apar Alloys
At Apar Alloys, we combine metallurgical expertise with a client-focused approach to supply high-quality Super Duplex 2304 (UNS S32304) stainless steel materials that meet international standards. Our efficient supply chain and stringent quality checks ensure reliability and performance in every order.
Reliable Stockist & Supplier
We maintain a comprehensive inventory of Super Duplex 2304 materials for quick availability and prompt delivery.
Sourced from Trusted Global Mills
Our materials are procured from certified international manufacturers, ensuring authenticity and consistent quality.
Stringent Quality Checks
Each batch is carefully inspected for chemical, mechanical, and dimensional compliance.
Custom Sizing & Cutting
We provide precision cutting, finishing, and sizing solutions tailored to specific project requirements.
Competitive Pricing and Timely Delivery
Apar Alloys ensures value-driven pricing with timely delivery across all industrial sectors.
Dedicated Client Support
Our experienced team assists clients throughout the material selection, procurement, and post-sales process for seamless partnerships.
Get in Touch
Contact Us
Looking for a reliable source for Super Duplex 2304 (UNS S32304) materials? Connect with Apar Alloys today for quotations, expert guidance, and customized super duplex stainless steel supply solutions.
[Call] +91 98333 89128
301, 3rd floor, A WING, Krishvi Escape, Near Vinay Health Home, Fanaswadi Bhuleshwar, Mumbai - 400002.
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