1.4462 / Duplex Stainless Steel - Strength, Corrosion Resistance & Cost Efficiency Combined
Schenk Stahl GmbH
Some like it hot…! - Manche m?gen's hei?...! Stainless steel and nickel alloy grades for special applications.
At Schenk Stahl GmbH , we specialize in high-performance stainless steels that offer exceptional strength, corrosion resistance, and durability.
One of the most sought-after grades in our portfolio is 1.4462 / Duplex Stainless Steel (UNS S31803 / S32205), which combines austenitic and ferritic properties to create a material that outperforms conventional stainless steels in many demanding environments.
If you need a high-strength, corrosion-resistant material that is also cost-effective, 1.4462 - TP 318LN is the perfect choice!
?? Why Choose 1.4462 / Duplex Stainless Steel?
1.4462 is a duplex stainless steel, meaning it has a 50% austenitic and 50% ferritic microstructure, giving it unique advantages over both austenitic and ferritic stainless steels.
? High Strength – Nearly Twice as Strong as AISI 316L – Yield strength of 485 MPa, allowing for weight reduction and cost savings.
? Superior Corrosion Resistance – Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-containing environments like seawater.
? Lower Nickel Content than Austenitic Stainless Steels – Making it a more cost-efficient and stable option, especially during price fluctuations of nickel.
? Resistance to Stress Corrosion Cracking (SCC) – The ferritic phase in its microstructure makes it significantly more resistant to chloride-induced SCC than austenitic grades like 304 or 316.
? Good Weldability – With proper welding techniques, 1.4462 retains its excellent corrosion resistance and mechanical properties.
? Service Temperature Range: -50°C to +280°C (-58°F to +540°F) – Making it suitable for both cryogenic and high-temperature applications.
?? Industry Standards & Norms:
? Tubes: EN 10216-5, EN 10297-2, ASTM A789, ASTM A790, ASME SA789, ASME SA790, NACE MR0175 / ISO 15156
? Plates & Bars: EN 10088-2, ASTM A240
? Fittings & Flanges: EN 10253-4, ASTM A815
? Oil & Gas Standards: ISO 13680, API 5LC, DNV OS F101
?? Key Advantages of 1.4462 / Duplex Stainless Steel
? High Strength & Toughness – Nearly twice as strong as conventional austenitic grades, allowing for thinner walls and lighter components.
? Excellent Corrosion Resistance – Especially in acidic, marine, and chloride-rich environments.
? Long-Term Cost Efficiency – Lower material usage due to higher strength, reduced maintenance, and increased service life.
? Resistant to Hydrogen Sulfide (H?S) & Chloride-Induced Stress Corrosion Cracking – Making it ideal for offshore oil & gas environments.
? Good Performance in Cryogenic Conditions – Retains its impact toughness even at very low temperatures.
?? Where is 1.4462 / Duplex Stainless Steel Used?
?? Oil & Gas Industry – Used in OCTG (Oil Country Tubular Goods), subsea, process & utility services, pipelines, and heat exchangers due to its high strength and corrosion resistance.
?? Chemical & Petrochemical Processing – Ideal for storage tanks, pressure vessels, and reactors, particularly in urea and food processing industries.
?? Marine & Shipbuilding – Preferred for seawater cooling systems, ship hulls, and offshore platforms due to its excellent chloride resistance.
?? Water Treatment Plants & Desalination – Used in seawater intake piping, filtration systems, and water storage tanks.
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?? Construction & Infrastructure – Ideal for bridges, structural reinforcements, and other high-stress applications.
?? Food & Beverage Industry – Commonly used in processing equipment and tanks due to its resistance to aggressive cleaning agents.
? Product Range & Availability
At Schenk Stahl GmbH , we stock 1.4462 / Duplex Stainless Steel in a variety of forms to meet your industrial needs:
? Tubes – Available from 10,00 mm up to 273,00 mm outer diameter, with wall thicknesses up to 25,4 mm.
? Hollow Bars – 45/28 up to 250/200.
? Plates – Thicknesses from 0.5 mm up to 120 mm.
? Round Bars – Diameters from 6.00 mm up to 300 mm.
? Fittings & Flanges – Available upon request.
? 90° Elbows – Sizes from 10.00 x 2.00 mm up to 273.00 x 25.40 mm, available in Bauart 3D - long radius according to DIN 2605 and the latest EN standard DIN EN 10253-4.
Short radius and special radius elbows are available upon request.
?? Need customized processing?
?? CNC machining for precision components.
?? Waterjet cutting for custom shapes.
?? Laser cutting for high-precision applications.
?? Why Choose 1.4462 / Duplex Stainless Steel from Schenk Stahl?
At Schenk Stahl GmbH , we are offering a wide range of products ready for immediate delivery.
?? Reliable Corrosion Resistance – Designed for aggressive environments, high chloride, and sour gas exposure.
?? Proven Performance in Industrial Applications – Used globally in oil & gas, marine, petrochemical, and chemical industries.
?? Fast Deliveries & Custom Solutions – Our in-house CNC machining, laser cutting, and waterjet cutting ensure quick turnaround times.
?? Cost Efficiency Compared to Austenitic Stainless Steels – Thanks to its high strength and reduced nickel content.
If your industry requires high-strength, corrosion-resistant materials, 1.4462 / TP 318LN Duplex Stainless Steel is the perfect solution for long-term durability and performance.
?? Let’s Talk About Your Project!
Looking for duplex stainless steel solutions? Get in touch with Schenk Stahl GmbH today, and let’s find the right material for your needs!
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