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Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004Tubotech Alloys is a leading manufacturer, supplier, and exporter of premium-quality Duplex Steel 31803 / 32205 Fasteners in the Netherlands designed to meet the demanding requirements of industries worldwide. Our Duplex Steel fasteners offer an excellent combination of high strength, superior corrosion resistance, and exceptional durability, making them suitable for harsh operating environments.
Duplex Steel UNS S31803 and UNS S32205 in the Netherlands are widely used in applications where resistance to chloride stress corrosion cracking, pitting, crevice corrosion, and general corrosion is essential. These fasteners provide nearly twice the yield strength of conventional austenitic stainless steels, ensuring enhanced performance and reliability.
Our range of Duplex Steel 31803 / 32205 Fasteners in the Netherlands is manufactured according to international standards and is available in various sizes, dimensions, and specifications to meet diverse industrial requirements.
Tubotech Alloys offers a comprehensive range of Duplex Steel 31803 / 32205 Fasteners, including:
| Specification | Details |
|---|---|
| Material Grade | Duplex Steel UNS S31803 / UNS S32205 |
| Standards | ASTM A182, ASTM A479, ASTM A276 |
| Fastener Standards | ASTM A193, ASTM A194, DIN, ISO, ANSI, BS |
| Size Range | M3 to M100 |
| Length | Up to 5 Meters |
| Thread Type | Metric, UNC, UNF, BSW |
| Form | Bolts, Nuts, Screws, Washers, Studs, Threaded Rods |
| Finish | Plain, Black, PTFE Coated, Hot-Dip Galvanized, Electro Polished |
| Element | UNS S31803 (%) | UNS S32205 (%) |
|---|---|---|
| Carbon (C) | 0.03 Max | 0.03 Max |
| Chromium (Cr) | 21.0 – 23.0 | 22.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 | 4.5 – 6.5 |
| Molybdenum (Mo) | 2.5 – 3.5 | 3.0 – 3.5 |
| Nitrogen (N) | 0.08 – 0.20 | 0.14 – 0.20 |
| Manganese (Mn) | 2.0 Max | 2.0 Max |
| Silicon (Si) | 1.0 Max | 1.0 Max |
| Phosphorus (P) | 0.03 Max | 0.03 Max |
| Sulfur (S) | 0.02 Max | 0.02 Max |
| Iron (Fe) | Balance | Balance |
| Property | Duplex Steel 31803 / 32205 |
|---|---|
| Tensile Strength | 620 MPa Min |
| Yield Strength | 450 MPa Min |
| Elongation | 25% Min |
| Hardness | 290 HB Max |
| Density | 7.8 g/cm³ |
| Modulus of Elasticity | 200 GPa |
Duplex Steel 31803 / 32205 Fasteners are extensively used across various industries, including:
Used in offshore platforms, subsea equipment, pipelines, and refineries where corrosion resistance is critical.
Ideal for pressure vessels, heat exchangers, storage tanks, and chemical handling equipment.
Widely used in shipbuilding, desalination plants, seawater systems, and offshore structures.
Suitable for thermal, nuclear, and renewable energy plants due to their high strength and corrosion resistance.
Used in digesters, bleaching systems, and processing equipment exposed to corrosive chemicals.
Applied in filtration systems, pumps, valves, and piping networks handling chlorinated water.
Preferred for bridges, structural assemblies, and high-strength fastening requirements.
These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.
Tubotech Alloys has established itself as a trusted global supplier of high-performance Duplex Steel Fasteners by delivering exceptional quality and customer satisfaction.
All fasteners are manufactured from certified raw materials and undergo strict quality inspections.
Products are manufactured according to ASTM, DIN, ISO, ANSI, and BS standards.
We offer bolts, nuts, washers, screws, threaded rods, and custom fasteners in multiple dimensions.
Cost-effective solutions without compromising quality and performance.
Efficient logistics network ensuring prompt delivery worldwide.
Experienced professionals provide guidance in selecting the right fasteners for your application.
Serving customers across Europe, North America, the Middle East, Asia, and Africa.
Duplex Steel 31803 / 32205 Fasteners are high-strength corrosion-resistant fastening components manufactured from duplex stainless steel grades containing a balanced austenitic-ferritic microstructure.
S32205 is an enhanced version of S31803 with tighter control of chemical composition, particularly nitrogen content, resulting in improved corrosion resistance and mechanical properties.
They are widely used in oil and gas, marine, desalination, chemical processing, power generation, and water treatment industries.
Yes, Duplex Steel 32205 Fasteners offer excellent resistance to seawater corrosion, chloride-induced pitting, and stress corrosion cracking.
Tubotech Alloys provides certified quality products, competitive pricing, customized solutions, global shipping, and reliable customer support for all Duplex Steel fastener requirements.
Upgrade your assembly with Tubotech for excellence and built to closing. Contact us nowadays to get a quote or examine more about our product range.
Tubotech delivers precision-engineered tubing, fittings, and fasteners with innovative solutions and customizable options. Trusted for quality and durability, we serve industries requiring reliable, high-performance piping and instrumentation products.
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