Duplex Steel Pipe Fittings Manufacturer, Supplier & Stockist
Kalpataru Piping Solutions is a reputable manufacturer and supplier of duplex steel pipe fittings, and it focuses on value products such as UNS S31803 and UNS S32205 fittings. Since it is our company, we have had years of industry experience, which has earned us a reputation of reliability where we are able to provide durable solutions that are of world standard.
We have duplex steel fittings in all shapes, such as plates, sheets, seamless, and welded tubes, which are made through precision with the combination of advanced geometry and high strength. These fittings are made in the S31803 material that offers great mechanical stability, as well as corrosion resistance, and can be used in chemical, hydraulic, and other industrial processes. UNS S31803 and UNS S32205 alloys are well known for their capability to sustain extreme temperatures without any leakage or structural defects.
Such fittings are made to resist galling, and they need to be intact in the face of varying temperatures. Such characteristics as silver-plated nuts make them more durable and safe as well as guarantee their long-term service. Kalpataru duplex steel fittings provide an ideal solution in terms of both chemical resistance and mechanical strength and ease of use; this is because when compared to the standard tube fittings, the duplex steel fittings prove to be more reliable and efficient.
Our fittings can be installed with ease, are leak-free and designed to operate effectively over a long period of time, which is ideal both in industrial and commercial use. UNS S31803, S31803 material, and the world-renowned UNS S32205 duplex steel fittings remain available at Kalpaturu Piping Solutions, which has continued to offer the world unmatched quality, durability, and efficiency in their application.
Table of content
- Specification of Duplex Steel Pipe Fittings
- Types of Duplex Steel Pipe Fittings
- Chemical Composition of Duplex 2205 Fittings
- Duplex 2205 vs Stainless Steel 316L Fittings
- Mechanical Properties of Duplex 2205 Fittings
- Applications of Duplex 2205 Pipe Fittings
- People Ask About Duplex Steel Pipe Fittings Manufacturer
Specification of Duplex Steel Pipe Fittings
Feature | Details |
Manufacturer | Kalpaturu Piping Solutions |
Product | Duplex Steel Pipe Fittings |
Grades | UNS S31803, S32205, S32750, S32760 |
Material | S31803 material, S32205 material |
Type | Seamless / Welded / Fabricated |
Size Range | 1/2” NB to 24” NB |
Standards | ASTM A815 / ASME SA815 |
Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
Thickness / Schedule | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
Key Features | Corrosion resistant, high strength, galling resistant, leak-proof, silver-plated nuts for durability |
Applications | Chemical processing, hydraulic systems, high-temperature industrial processes, commercial & industrial use |
Benefits | Easy installation, long-lasting, reliable, safe, high-performance |
Types of Duplex Steel Pipe Fittings
Chemical Composition of Duplex 2205 Fittings
Element | UNS S31803 | UNS S32205 |
Iron (Fe) | 63.72 min | 63.54 min |
Silicon (Si) | 1.00 | 1.00 |
Carbon (C) | 0.030 | 0.030 |
Nickel (Ni) | 4.50 – 6.50 | 4.50 – 6.50 |
Manganese (Mn) | 2.00 | 2.00 |
Molybdenum (Mo) | 3.0 – 3.5 | 2.50 – 3.50 |
Nitrogen (N) | 0.14 – 0.20 | 0.8 – 0.20 |
Phosphorous (P) | 0.030 | 0.030 |
Chromium (Cr) | 22.0 – 23.0 | 21.0 – 23.0 |
Sulphur (S) | 0.020 | 0.020 |
Duplex 2205 vs Stainless Steel 316L Fittings
Factor | Duplex 2205 Pipe Fittings (UNS S31803/S32205) | Stainless Steel 316L Fittings (UNS S31603) |
Group Name | Duplex Stainless Steel | Austenitic Stainless Steel |
Tensile Strength | 620 MPa min | 485 MPa min |
Life | 25–30 years | 20–25 years |
Suitable Temperature | -50°C to 300°C | -196°C to 500°C |
Highly Corrosive Environments | Best Suitable | Not advisable |
Density | 7.8 g/cm³ | 8.0 g/cm³ |
Thermal Conductivity | 19 W/m·K | 16 W/m·K |
Chloride Environment Corrosion Resistance | Excellent | Less effective |
Price per kg in India | US $6–8 | US $4–5 |
Melting Point | 1350–1450°C | 1371–1399°C |
Mechanical Properties of Duplex 2205 Fittings
Property | Value |
Tensile Strength | 620 MPa min |
Hardness Brinell (HB) | 290 max |
Proof Stress | 450 MPa min |
Elongation A50 mm | 25% min |
Modulus of Elasticity | 200 GPa |
Duplex 2205 Pipe Fittings Weight Chart
Size (inch) | Weight (kg) |
1/2 | 0.08 |
3/4 | 0.11 |
1 | 0.15 |
1 1/4 | 0.25 |
1 1/2 | 0.39 |
2 | 0.66 |
2 1/2 | 1.37 |
3 | 2.19 |
4 | 4.12 |
5 | 6.89 |
6 | 10.7 |
8 | 21.6 |
10 | 37 |
12 | 61 |
14 | 85.1 |
16 | 121 |
18 | 176 |
24 | 377 |
Applications of Duplex 2205 Pipe Fittings
- Oil & Gas Pipelines
- Chemical & Petrochemical Processing Plants
- Marine and Offshore Applications
- High-Pressure Hydraulic Systems
- Medical Equipment and Devices
- Corrosive and Chloride-rich Environments
People Ask About Duplex Steel Pipe Fittings Manufacturer
Duplex 2205 Pipe Fittings are high-performance duplex stainless steel fittings available in grades UNS S31803 and UNS S32205. They combine excellent strength, corrosion resistance, and durability for industrial applications.
S31803 material is a duplex stainless steel grade known for superior corrosion resistance, high tensile strength, and long-lasting performance in chemical, hydraulic, and high-temperature environments.
UNS S32205 fittings offer exceptional strength, resistance to galling, leak-proof performance, and stability under high temperatures. They are suitable for chemical, marine, and industrial applications.
They are widely used in oil & gas, chemical processing, marine environments, medical devices, and high-temperature hydraulic systems.