Manufactures & Suppliers of Pipes, Tubes, Flanges, Pipe Fitting & Fasteners

Super Duplex Steel Pipes and Tubes

  • Home
  • /
  • Pipes and Tubes
  • /
  • Super Duplex Steel Pipes and Tubes

At Natron Steel, we understand the international standards and specifications of Super Duplex Seamless Tubes, ensuring that our customers receive accurate and high-quality products. With our competitive pricing, premium quality, and timely delivery, we are recognized as one of the top Super Duplex Pipe suppliers in India. Natron Steel is a leading supplier and exporter of Super Duplex 2507 Seamless Pipes, offering a wide range of dimensions, wall thicknesses, and weights according to ASME B36.19 standards. The UNS S32750, S32760, and S32950 grades we provide offer excellent machinability and superior weldability characteristics, making them highly versatile for various industrial applications.

ASTM A789 Super Duplex Tubing, 2507 Super Duplex Steel Tube, Duplex S32750 Tube, Duplex S32750 Seamless Tube, Super Duplex S32750 Tubing, ASTM A789 Super Duplex Seamless Tubes, ASME SA789 Duplex S32750 Pipe and Tube

As one of the major manufacturers of Super Duplex Steel Pipes & Tubes, Natron Steel offers products made from SDSS (Super Duplex Stainless Steel) material, which features a higher chromium and molybdenum content, granting superior corrosion resistance compared to standard duplex grades. Super Duplex Steel offers the dual benefits of lower alloying costs when compared to austenitic and ferritic grades, while also boasting impressive tensile and yield strength, good toughness, and excellent ductility. Due to these properties, Super Duplex is widely used in industries such as oil and gas, offshore platforms, chemical processing equipment, pressure vessels, boilers, and heat exchangers.


At Natron Steel, we export and supply a comprehensive range of Super Duplex Tubing to over 30 countries, including Malaysia, the UK, Singapore, Ireland, the UAE, Vietnam, the Philippines, South Africa, Australia, Iran, Kenya, Nigeria, Canada, Russia, Japan, and many more European and African countries. Our global reach is a testament to the quality and reliability of our products.


Super Duplex Steel Pipe and Tube Specifications

Specifications ASTM A 789 ASME SA 789
Standard AISI, DIN, EN, GB, JIS, ASTM, ASME Super Duplex 2507 Pipe
2507 Seamless Pipe Outer Diameter 6.00 mm OD up to 250 mm OD, Sizes up to 12” NB
Alloy 2507 Welded Pipe size 5.0 mm - 1219.2 mm
2507 EFW Pipe size 5.0 mm - 1219.2 mm
Thickness 0.3mm - 50 mm
SS 2507 Seamless Tube Size 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN
2507 Welded Tube Size 6.35 mm OD To 152 mm OD
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
DSS 2507 tubing wall thickness 0.020" –0.220" (special wall thicknesses available)
2507 Pipe Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Duplex 2507 Pipe & Tube Finish Polished, AP (Annealed & Pickled), MF, NO.1, NO.4, BA (Bright & Annealed), 2B, BA, HL, 8K, Mirror finish,etc
2507 Pipe & Tube Form Round, Hollow, Square,Rectangular, Hydraulic, Coiled, Straight Pipes, “U” Shape, Pan Cake Coils etc.
Super Duplex 2507 Pipe & Tube Length Single Random, Double Random, Standard & Cut length
2507 Pipe & Tube End Beveled End,Plain End, Treaded.
2507 Pipe & Tube Type 2507 Seamless / ERW/ Welded / Fabricated / EFW / CDW / DOM / CEW Pipes
Marking All 2507 Pipes are marked as follows: Grade, Standard, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Super Duplex 2507 Tube Application Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger
Value Added Service Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Specialized in Large Dia 2507 Pipe
2507 Capillary Tube & Other Odd Size 
2507 Super Duplex Heat Exchanger & Condenser Tubes
Material Test Certificates (MTC) Material Test Certificates (MTC) as per EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2, 100% Radiography Test Report, Raw Materials Certificate, Third Party Inspection Report, Fumigation Certificates, Heat Treatment Charts, 2507 Tubes HS Code Commercial Invoice, Form A for Generalized System of Preferences (GSP), Manufacturer Test Certificate , Laboratory Test Certificate from Govt. Approved Lab.
We can also cut, thread, and groove Super Duplex 2507 Pipes & Tubes to meet your specifications.

The Super Duplex Tube material we supply provides exceptional resistance to corrosion in chloride-containing environments. Our ASTM A789 Super Duplex Seamless Tubes, along with fittings and weld fittings, are manufactured from Alloy S32750 / S32760 material, with a minimum pitting resistance equivalent (PRE) value of 42.5, ensuring durability in demanding conditions. We offer sizes with outside diameters of ¼", 3/8", ½", 5/8", ¾", and 1", and all our Super Duplex DIN 1.4410 Welded Tubing is marked with size, material type/grade, specifications, heat number, and other essential information for traceability and quality assurance.


Natron Steel also provides a comprehensive range of fluid system solutions, catering to industries such as pharmaceutical, oil and gas, power generation, petrochemicals, alternative fuels, semiconductors, and more. Our advanced manufacturing facilities and a strong network of distributors ensure that we deliver superior products and services to meet the evolving needs of our customers worldwide. For more details on our Super Duplex Pipes & Tubes, including product features, technical specifications, or to connect with one of our authorized sales representatives, visit the Natron Steel website. We are dedicated to providing high-quality solutions tailored to your industry’s specific requirements.

Super Duplex Chemical Composition

Super Duplex C N P Si Mn Mo Ni Cr S Other
0.030 0.24/0.32 0.035 0.80 1.20 3.0/5.0 6.00/8.00 24.0/26.0 0.020 Cu:0.50

Super Duplex Stainless Steel Tubes Mechanical Properties

Super Duplex Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %

Super Duplex Pipe Dimensions Size Chart

Pipe OD
mm		 Pipe WT
mm		 in. Sch Kg/m
13.72 1.65 1/4 10S 0.50
13.72 2.24 1/4 40S 0.64
13.72 3.02 1/4 80S 0.81
17.15 1.65 3/8 10S 0.64
17.15 2.31 3/8 40S 0.86
17.15 3.20 3/8 80S 1.12
21.34 2.11 1/2 10S 1.02
21.34 2.77 1/2 40S 1.29
21.34 3.73 1/2 80S 1.65
26.67 2.11 3/4 10S 1.30
26.67 2.87 3/4 40S 1.71
26.67 3.91 3/4 80S 2.23
33.40 2.77 1 10S 2.13
33.40 3.38 1 40S 2.54
33.40 4.55 1 80S 3.29
33.40 6.352) 1 160 4.30
42.16 2.77 1¼ 10S 2.73
42.16 3.56 1¼ 40S 3.44
42.16 4.85 1¼ 80S 4.53
42.16 6.352) 1¼ 160 5.69
48.26 2.77 1½ 10S 3.16
48.26 3.68 1½ 40S 4.11
48.26 5.08 1½ 80S 5.49
60.33 2.77 2 10S 3.99
60.33 3.91 2 40S 5.52
60.33 5.54 2 80S 7.60
60.33 8.742) 2 160 11.29
73.03 3.05 2½ 10S 5.35
73.03 5.16 2½ 40S 8.77
73.03 7.01 2½ 80S 11.59
88.90 3.05 3 10S 6.56
88.90 5.49 3 40S 11.47
88.90 7.62 3 80S 15.51
88.90 11.132) 3 160 21.67
101.60 3.05 3½ 10S 7.53
101.60 5.74 3½ 40S 13.78
101.60 8.08 3½ 80S 18.92
114.30 3.05 4 10S 8.50
114.30 6.02 4 40S 16.32
114.30 8.56 4 80S 22.67
114.30 13.492) 4 160 34.05
141.30 6.55 5 40S 22.10
141.30 9.53 5 80S 31.44
141.30 15.882) 5 160 49.87
168.28 3.4 6 10S 14.04
168.28 7.11 6 40S 28.69
168.28 10.97 6 80S 43.21
168.28 14.27 6 120 54.75
168.28 18.262) 6 160 68.59
219.08 8.18 8 40S 43.20
219.08 12.7 8 80S 65.63
219.08 18.23 8 120 91.30
219.08 23.012) 8 160 112.97
Super Duplex 2507 Pipe Pressure Rating chart
Pipe Size Pipe Schedule 100°F 200° 300° 400° 500° 600° 650° 700° 750°
1″ 40 3048 2629 2362 2171 2019 1924 1867 1824 1810
1″ 80 4213 3634 3265 3002 2791 2659 2580 2528 2501
1″ 160 6140 5296 4759 4375 4068 3876 3761 3684 3646
1.5″ 40 2257 1947 1750 1608 1496 1425 1383 1354 1340
1.5″ 80 3182 2744 2466 2267 2108 2009 1949 1909 1889
1.5″ 160 4619 3984 3580 3291 3060 2916 2829 2772 2743
2″ 40 1902 1640 1474 1355 1260 1201 1165 1141 1129
2″ 80 2747 2369 2129 1957 1820 1734 1682 1648 1631
2″ 160 4499 3880 3486 3205 2980 2840 2755 2699 2671
3″ 40 1806 1558 1400 1287 1196 1140 1106 1084 1072
3″ 80 2553 2202 1979 1819 1691 1612 1564 1532 1516
3″ 160 3840 3312 2976 2736 2544 2424 2352 2304 2280
4″ 40 1531 1321 1187 1091 1014 967 938 919 909
4″ 80 2213 1909 1715 1577 1466 1397 1355 1328 1314
4″ 160 3601 3106 2791 2566 2386 2273 2206 2161 2138
5″ 40 1342 1158 1040 956 889 847 822 805 797
5″ 80 1981 1709 1535 1411 1312 1250 1213 1189 1176
5″ 160 3414 2945 2646 2433 2262 2155 2091 2049 2027
6″ 40 1219 1052 945 869 808 770 747 732 724
6″ 80 1913 1650 1483 1363 1267 1208 1172 1148 1136
6″ 160 3289 2836 2549 2343 2179 2076 2014 1973 1953
8″ 40 1073 926 832 765 711 678 657 644 637
8″ 80 1692 1459 1311 1205 1121 1068 1036 1015 1005
8″ 160 3175 2738 2460 2262 2103 2004 1944 1905 1885
10″ 40 974 840 755 694 945 615 596 584 578
10″ 80 1609 1388 1247 1147 1066 1016 986 966 956
10″ 160 3147 2714 2439 2242 2085 1986 1927 1880 1868
Pipes and Tubes

Get a free quote

Call us now

+91 9930950723