Duplex Steel Pipes & Duplex Steel Tubes
Duplex Steel Pipes, Duplex Steel Tubes, Duplex Steel Pipes Stockist in UAE and, Duplex Steel Seamless Pipes & Tubes, Duplex Stainless Steel Pipe Price, Welded Duplex Steel Pipes, and Duplex Steel Tubes Manufacturer, Exporter & Suppliers in India.
ASTM A790, A790 Material, Seamless Duplex Steel Tubes Price and Duplex Steel Tubes manufacturer & suppliers, ERW Pipes Suppliers in India.
The term “Duplex Steel Pipe” is derived from the alloy’s dual microstructure. With favorable mechanical properties, Duplex Stainless Steel Seamless Pipes can be used in an as-welded condition. Outperforming austenitic alloys like ASTM A312 TP304 or ASTM A312 TP316, Seamless Duplex Pipes exhibit superior corrosion resistance.
This corrosion resistance is especially prominent when exposed to environments containing corrosive compounds leading to chloride stress corrosion and chloride pitting corrosion. Additionally, Duplex Welded Pipes boost significantly higher tensile strength compared to standard austenitic stainless steel grades. Primarily utilized in the offshore oil and gas industry, Duplex Steel Pipes are economically advantageous due to their lower nickel content. As a leading distributor and manufacturer of A790 Duplex Pipes, we ensure high-quality products for our customers.
Kalpataru Piping Solution producing Duplex Stainless Steel Seamless, welded, and ERW Pipes. Our manufacturing range spans from 4mm to 219mm in SMLS and 5mm to 1219.2 mm in Welded. Custom sizes can also be manufactured for quantities above 10 Tons. Opting for a Duplex Stainless Steel Pipe manufacturer offers a 10% lower price compared to stocklists and suppliers in Mumbai. We offer warranties for all our Duplex Steel Pipes & Tubes.
Kalpataru Piping Solution offers all Duplex Steel Pipes & Duplex Steel Tubes for the Oil and Gas and Refinery Industry as Round Pipe, Duplex Steel Tubes, Duplex Pipe Material, Square Pipe, Duplex Seamless Pipe, Hollow Pipe and Duplex Pipe Material Grade. Duplex Thin Wall Pipe commonly discovers applications including Marine, Aerospace ventures, Chemical preparing, Nuclear reactors, Pollution control gear and so on. The majority of our S32205 Pipe are produced by our expert laborer and we have our high-work-impact remote exchange group, you can absolutely trust our administration and great duplex round pipes.
Duplex Steel Pipe & Tube Specifications
Our duplex steel pipes and tubes, meeting ASTM A790 and A789 standards, offer unparalleled corrosion resistance and superior mechanical properties. Ideal for critical applications in oil and gas, chemical processing, and marine engineering, these pipes ensure reliable performance in demanding environments. Choose top-tier quality for your robust infrastructure needs and high-stakes applications.
Standard |
Grade |
Type |
Length |
End |
ASTM A789/A790 |
UNS S31803/2205 |
Seamless |
Random, Fix, Cut |
Plain, Beveled |
ASTM A789/A790 |
UNS S32750 |
Welded |
Single, Double |
Threaded, Beveled |
DIN EN 10216-5 |
1.4462 |
ERW |
Custom |
Plain, Threaded |
ASME SA789/SA790 |
UNS S32205 |
Seamless |
6 meters |
Beveled |
ISO 3183-1 |
UNS S32760 |
Welded |
12 meters |
Plain, Beveled |
ASTM A928/A928M |
UNS S32750 |
Seamless |
Double Random |
Plain, Threaded |
Duplex steel Pipe & Tube Chemical Composition
Duplex stainless steel pipes, paired with fittings and tubes, boast a potent blend of chromium, nickel, and molybdenum for exceptional corrosion resistance and strength. Enhanced by nitrogen, these components ensure structural integrity. With seamless fittings connecting pipes and versatile tubes, this composition delivers reliability across diverse applications, from challenging chemical processing to offshore and oil and gas industries.
Grade |
C≤ |
Mn≤ |
P≤ |
S≤ |
Si≤ |
Ni |
Cr |
Mo |
N |
Cu |
S31803 |
0.03 |
2.00 |
0.03 |
0.02 |
1.00 |
4.5–6.5 |
21.0–23.0 |
2.5–3.5 |
0.08–0.20 |
– |
S32205 |
0.03 |
2.00 |
0.03 |
0.02 |
1.00 |
4.5–6.5 |
22.0–23.0 |
3.0–3.5 |
0.14–0.20 |
– |
S32750 |
0.03 |
1.20 |
0.035 |
0.02 |
0.80 |
6.0-8.0 |
24.0-26.0 |
3.0-5.0 |
0.24-0.32 |
0.5 |
S32760 |
0.05 |
1.00 |
0.03 |
0.01 |
1.00 |
6.0-8.0 |
24.0-26.0 |
3.0-4.0 |
0.20-0.30 |
0.50–1.00 |
Duplex steel Pipe & Tube Mechanical Properties
Mechanical properties |
Tensile,min,ksi[MPa] |
Yield,min,ksi[MPa] |
Elongation,%(min) |
Hardness,HB(max) |
S31803 |
90 [620] |
65 [450] |
25 |
290 |
S32205 |
95 [655] |
65 [450] |
25 |
290 |
S32750 |
116 [800] |
80 [550] |
15 |
300 |
S32760 |
109 [750] |
80 [550] |
25 |
300 |
Types Of Duplex Steel Pipes And Duplex Steel Tubes
Duplex steel pipes and tubes come in various types, each designed for specific applications and requirements. These types of duplex steel pipes and tubes cater to diverse industrial applications, providing a balance of corrosion resistance, high strength, and other desirable properties associated with duplex stainless steel. The selection depends on the specific requirements of the intended use. Here are some common types of duplex steel pipes and tubes:
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