
Phone
+91 9769961320Address
Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004© Alrights reserved
by Tubotech Alloys INC
Tubotech Alloys is a leading manufacturer, supplier, and exporter of Duplex Steel 31803 / 32205 Fasteners in France. We provide premium-quality fasteners engineered for superior strength, corrosion resistance, and long-term performance in demanding industrial environments. Our Duplex Steel 31803 Fasteners and Duplex Steel 32205 Fasteners are widely used across oil & gas, petrochemical, marine, chemical processing, power generation, and offshore industries throughout France.
Manufactured according to international standards, our Duplex fasteners offer exceptional resistance to pitting, crevice corrosion, stress corrosion cracking, and chloride-induced corrosion. Tubotech Alloys supplies fasteners in various dimensions, threads, and finishes to meet diverse industrial requirements.






Tubotech Alloys offers a comprehensive range of Duplex Steel 31803 / 32205 Fasteners, including:
| 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 |
| Manganese (Mn) | 2.0 Max | 2.0 Max |
| Silicon (Si) | 1.0 Max | 1.0 Max |
| Nitrogen (N) | 0.08 – 0.20 | 0.14 – 0.20 |
| Phosphorus (P) | 0.03 Max | 0.03 Max |
| Sulfur (S) | 0.02 Max | 0.02 Max |
| Iron (Fe) | Balance | Balance |
| Property | Duplex Steel 31803 | Duplex Steel 32205 |
|---|---|---|
| Tensile Strength | 620 MPa Min | 655 MPa Min |
| Yield Strength | 450 MPa Min | 450 MPa Min |
| Elongation | 25% Min | 25% Min |
| Hardness | 290 HB Max | 293 HB Max |
| Density | 7.8 g/cm³ | 7.8 g/cm³ |
| Specification | Details |
|---|---|
| Material Grade | Duplex Steel UNS S31803 / UNS S32205 |
| Standards | ASTM A182, ASTM A276, ASTM A479 |
| Fastener Standards | ASTM A479, DIN, ISO, BS |
| Size Range | M3 to M100 |
| Length | Custom Length Available |
| Thread Type | Metric, UNC, UNF, BSW |
| Form | Bolts, Nuts, Screws, Washers, Studs, Threaded Rods |
| Finish | Plain, Black, PTFE Coated, Hot Dip Galvanized |
| Origin | Made to International Standards |
These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.
The excellent combination of strength and corrosion resistance makes Duplex Steel 31803 / 32205 Fasteners suitable for numerous industrial applications:
Tubotech Alloys is recognized as a trusted supplier of Duplex Steel 31803 / 32205 Fasteners in France due to our commitment to quality, reliability, and customer satisfaction.
We source high-grade Duplex Steel raw materials to ensure exceptional durability and performance.
All fasteners are manufactured and tested according to ASTM, DIN, ISO, and other global standards.
We offer a complete inventory of bolts, nuts, washers, screws, studs, and customized fastening solutions.
Our efficient manufacturing processes allow us to offer cost-effective Duplex Steel fasteners without compromising quality.
With a robust logistics network, we ensure prompt delivery to industrial customers throughout France.
Each batch undergoes rigorous inspection and testing for dimensional accuracy, mechanical strength, and corrosion resistance.
To buy Duplex Steel 31803 32205 Fasteners in France at an affordable Duplex Steel 31803 32205 Fasteners Price in France you need to ‘Get in Touch’ with Tubotech Alloys
Duplex Steel 31803 / 32205 Fasteners are high-strength fastening components made from duplex stainless steel with a balanced austenitic-ferritic microstructure, offering excellent corrosion resistance and mechanical properties.
Duplex Steel 32205 is an enhanced version of 31803 with tighter chemical composition controls, particularly higher nitrogen content, resulting in improved corrosion resistance and strength.
These fasteners are widely used in offshore, marine, chemical processing, petrochemical, desalination, and power generation industries.
Yes. Duplex Steel 31803 and 32205 Fasteners provide excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, making them ideal for marine and coastal environments.
Tubotech Alloys offers certified quality products, competitive pricing, custom manufacturing options, global standards compliance, and reliable delivery across France.
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.
© 2025 | Alrights reserved by Tubotech Alloys INC
WhatsApp us