Ferralium 255 – SD50 (super duplex 255) Pipes & Tubes is a super duplex stainless steel supplied in the hot worked and annealed condition. It achieves higher strengths than most stainless steels and alternative corrosion resistant alloys, offering the potential to reduce section size and therefore weight and cost. As a 25% Cr alloy, with significant additions of copper, Ferralium® 255 offers excellent corrosion resistance in a wide variety of corrosive chemicals including sulphuric, nitric and phosphoric acid. Copper is widely known to improve resistance to acids, and Ferralium 255 contains 2% copper, which is more than other super duplex grades. In seawater and other chloride containing environments it also provides outstanding resistance to pitting and crevice corrosion, with Critical Pitting Temperature exceeding 50°C. Excellent ductility and impact strength at both ambient and sub-zero temperatures combine with a high resistance to abrasion, erosion and cavitation erosion.
Pipe Specifications | ASTM A790 / ASME SA790, ASTM A815 / ASME SA815 |
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Pipe Standard | DIN, JIS, ASTM, EN, GB, AISI, ASME Super Duplex Steel Ferrinox 255 Pipe Supplier |
Pipe Thickness | 0.3mm - 50 mm |
Super Duplex Steel Ferrinox 255 Welded Pipe size | 6" NB - 24" NB |
Super Duplex Steel Ferrinox 255 Seamless Pipe Size | 1 / 2" NB - 8" NB |
Super Duplex Steel Ferrinox 255 EFW Pipe size | 5.0 mm - 1219.2 mm |
Super Duplex Steel Ferrinox 255 Welded Tube Size | 6.35 mm OD To 152 mm OD |
Super Duplex Steel Ferrinox 255 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN |
Super Duplex Steel Ferrinox 255 tubing wall thickness | 0.020" –0.220" (special wall thicknesses available) |
Pipe & Tube Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
Super Duplex Steel Ferrinox 255 Pipe & Tube Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish,etc |
Super Duplex Steel Ferrinox 255 Pipe Schedule | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
Super Duplex Steel Ferrinox 255 Pipe & Tube Length | Single Random, Double Random, Standard & Cut length |
Super Duplex Steel Ferrinox 255 Pipe & Tube Form | Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils etc. |
Super Duplex Steel Ferrinox 255 Pipe & Tube Type | Super Duplex Steel Ferrinox 255 Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW Pipe |
Super Duplex Steel Ferrinox 255 Pipe & Tube End | Plain End, Beveled End, Treaded Pipe. |
Super Duplex Steel Ferrinox 255 Tube Application | Boiler and Heatexchanger, Oil Tube, Fluid Tube, Gas Tube, |
Pipe Marking | All Super Duplex Steel Ferrinox 255 Pipes are marked as follows: Grade, Standard, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
Pipe Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
Material Test Certificates (MTC) |
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Specialized in |
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We can also thread, cut, and groove Super Duplex Steel Ferrinox 255 Pipes & Tubes to meet your specifications. |
Pipe Size (in) |
Diameter (in) MM |
Nominal Thickness (in) MM |
Transverse Areas (in2) MM2 |
Length of Pipe (ft per sq. foot of surface) |
Volume (ft3/ft) |
Weight | Number of Threads per inch of Screw | |||||
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External | Internal | External | Internal | Steel | External Surface (ft) |
Internal Surface (ft) |
(lb/ft) | (kg/m) | ||||
1/8 | 0.405 | 0.27 | 0.07 | 0.13 | 0.06 | 0.07 | 9.43 | 14.20 | 0.0004 | 0.24 | 0.36 | 27 |
¼ | 0.540 | 0.36 | 0.09 | 0.23 | 0.10 | 0.13 | 7.07 | 10.49 | 0.0007 | 0.42 | 0.63 | 18 |
3/8 | 0.675 | 0.49 | 0.09 | 0.36 | 0.19 | 0.17 | 5.66 | 7.75 | 0.0013 | 0.57 | 0.84 | 18 |
½ | 0.840 | 0.62 | 0.11 | 0.55 | 0.30 | 0.25 | 4.55 | 6.14 | 0.0021 | 0.85 | 1.26 | 14 |
¾ | 1.050 | 0.82 | 0.11 | 0.87 | 0.53 | 0.33 | 3.64 | 4.64 | 0.0037 | 1.13 | 1.68 | 14 |
1 | 1.315 | 1.05 | 0.13 | 1.36 | 0.86 | 0.49 | 2.90 | 3.64 | 0.0060 | 1.68 | 2.50 | 11 ½ |
1 ¼ | 1.660 | 1.38 | 0.14 | 2.16 | 1.50 | 0.67 | 2.30 | 2.77 | 0.0104 | 2.27 | 3.38 | 11 ½ |
1 ½ | 1.900 | 1.61 | 0.15 | 2.84 | 2.04 | 0.80 | 2.01 | 2.37 | 0.0141 | 2.72 | 4.04 | 11 ½ |
2 | 2.375 | 2.07 | 0.15 | 4.43 | 3.36 | 1.08 | 1.61 | 1.85 | 0.0233 | 3.65 | 5.43 | 11 ½ |
2 ½ | 2.875 | 2.47 | 0.20 | 6.49 | 4.79 | 1.70 | 1.33 | 1.55 | 0.0333 | 5.79 | 8.62 | 8 |
3 | 3.500 | 3.07 | 0.22 | 9.62 | 7.39 | 2.23 | 1.09 | 1.25 | 0.0513 | 7.58 | 11.27 | 8 |
3 ½ | 4.000 | 3.55 | 0.23 | 12.56 | 9.89 | 2.68 | 0.95 | 1.08 | 0.0687 | 9.11 | 13.56 | 8 |
4 | 4.500 | 4.03 | 0.24 | 15.90 | 12.73 | 3.17 | 0.85 | 0.95 | 0.0884 | 10.79 | 16.06 | 8 |
5 | 5.563 | 5.05 | 0.26 | 24.30 | 20.00 | 4.30 | 0.69 | 0.76 | 0.1389 | 14.61 | 21.74 | 8 |
6 | 6.625 | 6.07 | 0.28 | 34.47 | 28.89 | 5.58 | 0.58 | 0.63 | 0.2006 | 18.97 | 28.23 | 8 |
8 | 8.625 | 7.98 | 0.32 | 58.42 | 50.02 | 8.40 | 0.44 | 0.48 | 0.3552 | 28.55 | 42.49 | 8 |
10 | 10.750 | 10.02 | 0.37 | 90.76 | 78.85 | 11.90 | 0.36 | 0.38 | 0.5476 | 40.48 | 60.24 | 8 |
12 | 12.750 | 11.94 | 0.41 | 127.64 | 111.90 | 15.74 | 0.30 | 0.32 | 0.7763 | 53.60 | 79.77 | 8 |
14 | 14.000 | 13.13 | 0.44 | 153.94 | 135.30 | 18.64 | 0.27 | 0.28 | 0.9354 | 63.00 | 93.75 | 8 |
16 | 16.000 | 15.00 | 0.50 | 201.05 | 176.70 | 24.35 | 0.24 | 0.25 | 1.2230 | 78.00 | 116.08 | 8 |
18 | 18.000 | 16.88 | 0.56 | 254.85 | 224.00 | 30.85 | 0.21 | 0.23 | 1.5550 | 105.00 | 156.26 | 8 |
20 | 20.000 | 18.81 | 0.59 | 314.15 | 278.00 | 36.15 | 0.19 | 0.20 | 1.9260 | 123.00 | 183.05 | 8 |
24 | 24.000 | 22.63 | 0.69 | 452.40 | 402.10 | 50.30 | 0.16 | 0.17 | 2.7930 | 171.00 | 254.48 | 8 |
Nominal pipe Size(NPS) | Outside Diameter | Nominal Wall Thickness | |||||||||||
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Sch5s | SCH10S | Sch20 | Sch30 | Sch40 | STD | Sch80 | XS | Sch160 | XXS | ||||
8 | 1/4 | 13.7 | 0.54 | – | 1.65 | – | 1.85 | 2.24 | 2.24 | 3.02 | 3.02 | – | – |
10 | 3/8 | 17.1 | 0.675 | – | 1.65 | – | 1.85 | 2.31 | 2.31 | 3.20 | 3.20 | – | – |
15 | 1/2 | 21.3 | 0.84 | 1.65 | 2.11 | – | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 |
20 | 3/4 | 26.7 | 1.05 | 1.65 | 2.11 | – | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 |
25 | 1 | 33.4 | 1.32 | 1.65 | 2.77 | – | 2.90 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 |
32 | 1.1/4 | 42.2 | 1.66 | 1.65 | 2.77 | – | 2.97 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.70 |
40 | 1.1/2 | 48.3 | 1.90 | 1.65 | 2.77 | – | 3.18 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.15 |
50 | 2 | 60.3 | 2.38 | 1.65 | 2.77 | – | 3.18 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 |
65 | 2.1/2 | 73.0 | 2.88 | 2.11 | 3.05 | – | 4.78 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 |
80 | 3 | 88.9 | 3.50 | 2.11 | 3.05 | – | 4.78 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.24 |
90 | 3.1/2 | 101.6 | 4.00 | 2.11 | 3.05 | – | 4.78 | 5.74 | 5.74 | 8.08 | 8.08 | – | – |
100 | 4 | 114.3 | 4.50 | 2.11 | 3.05 | – | 4.78 | 6.02 | 6.02 | 8.56 | 8.56 | 13.49 | 17.12 |
125 | 5 | 141.3 | 5.56 | 2.77 | 3.40 | – | – | 6.55 | 6.55 | 9.53 | 9.53 | 15.88 | 19.05 |
150 | 6 | 168.3 | 6.62 | 2.77 | 3.40 | – | – | 7.11 | 7.11 | 10.97 | 10.97 | 18.26 | 21.96 |
200 | 8 | 219.1 | 8.62 | 2.77 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 12.70 | 12.70 | 23.01 | 22.23 |
250 | 10 | 273.0 | 10.75 | 3.40 | 4.19 | 6.35 | 7.80 | 9.27 | 9.27 | 15.09 | 12.70 | 28.58 | 25.40 |
300 | 12 | 323.8 | 12.75 | 3.96 | 4.57 | 6.35 | 8.38 | 10.13 | 9.53 | 17.48 | 12.70 | 33.32 | 25.40 |
350 | 14 | 355.6 | 14 | 3.96 | 4.78 | 7.92 | 9.53 | 11.13 | 9.53 | 19.05 | 12.70 | 35.71 | – |
400 | 16 | 406.4 | 16 | 4.19 | 4.78 | 7.92 | 9.53 | 12.70 | 9.53 | 21.44 | 12.70 | 40.49 | – |
450 | 18 | 457 | 18 | 4.19 | 4.78 | 7.92 | 11.13 | 14.27 | 9.53 | 23.83 | 12.70 | 45.24 | – |
500 | 10 | 508 | 20 | 4.78 | 5.54 | 9.53 | 12.70 | 15.09 | 9.53 | 26.19 | 12.70 | 50.01 | – |
550 | 22 | 559 | 22 | 4.78 | 5.54 | 9.53 | 12.70 | – | 9.53 | 28.58 | 12.70 | 53.98 | – |
600 | 24 | 610 | 24 | 5.54 | 6.35 | 9.53 | 14.27 | 17.48 | 9.53 | 30.96 | 12.70 | 59.54 | – |
650 | *26 | 660 | 26 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
700 | *28 | 711 | 28 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
750 | *30 | 762 | 30 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
800 | *32 | 813 | 32 | – | – | – | – | – | 9.53 | – | 12.70 | – | – |
C | Mn | Si | P | S | Cr | Cu | Ni | N |
0.03 | 2.5 | 1.0 | 0.04 | 0.03 | 21.5 -24.5 | 0.05-2.0 | 3.0-3.5 | 0.05-2.0 |
Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (HB) MAX |
87 | 58 | 25 | 293 |
Density at 68°F (20°C) | 0.28 lbm/in3 7800 kg/cm3 |
Coefficient of Thermal Expansion | ax10-6°C-1 |
68°F to: 212°F (20 -100°C) | 13 |
68°F to 392°F (20 -200°C) | 13.5 |
68°F to 572°F (20 -300°C) | 14 |
Thermal Conductivity | W.m-1.K-1 |
at 68°F (20°C) | 17 |
at 212°F (100°C) | 18 |
at 392°F (200°C) | 19 |
at 572°F (300°C) | 20 |
Electrical Resitivity | (μ_ cm) |
at 68°F (20°C) | 80 |
at 212°F (100°C) | 92 |
at 392°F (200°C) | 100 |
at 572°F (300°C) | 105 |
Specific Heat | (Btu/lb/°F) |
32°F to: 212°F (20 -100°C) | 0.11 |
Welded Super Duplex Steel Ferrinox 255 Stainless Steel pipe | Seamless Super Duplex Steel 2507 pipe |
Tuberia Super Duplex Steel Ferrinox 255 | saf 2304 pipe |
Super Duplex Steel Ferrinox 255 Steel Pipe | Tubo Super Duplex Steel Ferrinox 255 |
Super Duplex Steel 2507 Custom Pipe | 2507 Super Duplex Steel Round Pipe Price |
6 Inch Welded Uranus 2507 Cu Steel pipe | Welded polished annealed Super Duplex Steel 2507 pipe |
Super Duplex Steel Ferrinox 255 Stainless Steel flex pipe supplier | Duplex SS 2304 Polished Pipe |
2507 Super Duplex Steel Thick Wall Pipe | Uranus 2507 Cu Welded Pipe stockist |
2507 Super Duplex Steel lined pipe | 2507 Super Duplex Steel Thin Wall Pipe |
Uranus 2507 Cu Steel Custom Pipe | SCH40 2507 Super Duplex Steel pipe |
2507 Super Duplex Steel Rectangular Pipe | Ferrinox 255 Super Duplex Steel EFW Pipe |
Duplex SS 2304 Seamless Round Pipes | Uranus 2507 Cu Steel ERW Pipe |
SCH20 Super Duplex Steel Ferrinox 255 Pipe Distributors | SCH80 Ferrinox 255 Super Duplex Steel pipe |
Super Duplex Steel Ferrinox 255 Stainless Steel Square Pipe (Radius Corners) | Super Duplex Steel Ferrinox 255 Pipe Supplier |
Hot Rolled Uranus 2507 Cu Steel Welded Pipe | Cold Drawn 22 Cr Duplex Steel Pipes |
Hot Rolled 22 Cr Duplex Steel Pipe | Hot Rolled 22 Cr Duplex Steel Seamless Pipe |
Uranus 2507 Cu Steel Fabricated Pipe | 22 Cr Duplex Steel Annealed pipes |
Cold Drawn 22 Cr Duplex Steel Welded Pipes | Cold Drawn Ferrinox 255 Super Duplex Steel Seamless Pipes |
Uranus 2507 Cu Steel Hollow Pipe | Ferrinox 255 Super Duplex Steel High Pressure Tube |
Super Duplex Steel Ferrinox 255 Stainless Steel small diameter pipe | 22 Cr Super Duplex Capillary Pipe |
Uranus 2507 Cu 1.4507 Elliptical and Oval Tubes | 22 Cr Super Duplex Rectangular Tube |
Ferrinox 255 Super Duplex Steel Sighting Tube | Uranus 2507 Cu Steel Polish Tubes |
Uranus 2507 Cu 1.4507 straight tube boiler | 22 Cr Super Duplex furnace tube |
22 Cr Super Duplex Condenser Tubes | Uranus 2507 Cu Steel Aero engine tubes |
Super Duplex Steel Ferrinox 255 / Uranus 2507 Cu Extruded Seamless Tube | Super Duplex Steel Ferrinox 255 AISI Precision tube |
22 Cr Super Duplex Protection tube | Uranus 2507 Cu Steel Cold Drawn Seamless tube |
2507 Super Duplex Steel Round Tubing | 2507 Super Duplex Steel ERW Tube |
2507 Super Duplex Steel Gas Tube | Lean Super Duplex Steel Ferrinox 255 Fluid Tube |
Super Duplex Steel Ferrinox 255 AISI Tubing bends | Uranus 2507 Cu Steel Capillary tube |
22cr Duplex CDW Pipe | 2507 Super Duplex Steel Rectangular Welded Pipes |
ASME SA790 22cr Duplex Pipe | Super Duplex Steel Ferrinox 255 Cold Drawn Seamless Pipe |
Super Duplex Steel Ferrinox 255 Beveled End Pipe | Plain End Super Duplex Steel Ferrinox 255 Stainless Steel Pipe |
Super Duplex Steel Ferrinox 255 Alloy perforated pipe | Large diameter 2507 Super Duplex Steel pipe |
12mm 22cr Duplex Pipe | Super Duplex Steel Ferrinox 255 EFW Welded Pipe |
10mm Super Duplex Steel Ferrinox 255 Stainless Steel Pipe | 40mm 2507 Super Duplex Steel Pipes |
Super Duplex Steel 2507 Weld Pipe | Inox Super Duplex Steel Ferrinox 255 Lined Pipe |
Super Duplex Steel Ferrinox 255 Stainless Steel Square Pipe | Uranus 2507 Cu Clad Pipe |
2507 Super Duplex Steel Flex Pipe | 2507 Super Duplex Steel Rectangle Pipe |
Uranus 2507 Cu Thick Wall Pipe | Super Duplex Steel Ferrinox 255 Stainless Steel Bush Hex Pipe |
2507 Super Duplex Steel Exhaust Pipe | Super Duplex Steel 2507 Pipe material |
Super Duplex Steel Ferrinox 255 Stainless Steel Hollow Pipe Price | Inox Super Duplex Steel Ferrinox 255 Round Pipe |
Uranus 2507 Cu Seamless Pipe | Super Duplex Steel Ferrinox 255 Stainless Steel Welded Pipe |
Uranus 2507 Cu seamless tubing | Duplex SS 2304 Thin Wall tube & Pipe |
Super Duplex Steel Ferrinox 255 Steel Coiled Tubing | Duplex Type 2507 Capillary Tube & Pipe |
Super Duplex Steel Ferrinox 255 Steel welded tubing | Duplex Type 2507 tubes & Pipe |
Super Duplex Steel Ferrinox 255 / Uranus 2507 Cu seamless tube | 22cr Duplex Furnace Tube |
Uranus 2507 Cu Rectangle Tube | Super Duplex Steel Ferrinox 255 Werkstoff 1.4507 tubing |
Duplex SS 2304 'U' Shaped tubing | 2507 Super Duplex Steel Gas Tube |
2507 Super Duplex Steel Heat Exchanger Tubes | Uranus 2507 Cu boiler tube |
Super Duplex Steel Ferrinox 255 Grade Seamless Tubes & Pipe | Uranus 2507 Cu 1.4507 Round Tube |
Super Duplex Steel Ferrinox 255 Coiled Tubing & Pipe | Super Duplex Steel Ferrinox 255 Alloy Capillary Tubing |
Super Duplex Steel Ferrinox 255 Steel Welded Tubes | 2507 Super Duplex Steel Seamless Tubing |
Uranus 2507 Cu Pan Cake Coils | 2507 Super Duplex Steel Welded Rectangular Tubes |
Saf Ferrinox 255 Super Duplex Steel EFW Tubing | Super Duplex Steel Ferrinox 255 Grade EFW Welded Tubes |
Duplex Stainless Steel Grade 2304 evaporator Tube | Uranus 2507 Cu small diameter tube |
Super Duplex Steel Ferrinox 255 Steel Hydraulic Tubes & Pipe | 22cr Duplex superheater Tube & Pipe |
Uranus 2507 Cu DOM Tubes | Super Duplex Steel Ferrinox 255 Alloy CEW Tubes & Pipe |
Super Duplex Steel Ferrinox 255 Perforated Tube & Pipe | 2507 Super Duplex Steel heater Tube |
Super Duplex Steel Ferrinox 255 Steel EFW Tubes & Pipe | Fabricated Super Duplex Steel Ferrinox 255 F51 Tube |
Saf Ferrinox 255 Super Duplex Steel ERW Tubing | Duplex Stainless Steel Grade 2304 Instrumentation Tubes |
Ashtavinayak Alloys supply Ferrinox 255 / Uranus 2507 (UNS S32520 / S32550 / Wr.No. 1.4507) Pipes & Tubes at Andhra Pradesh, Hyderabad, Chennai, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Haryana, Himachal Pradesh, baddi, Gujarat, Srinagar, Jharkhand, Karnataka, Kerala, Thiruvanthapuram, Madhya Pradesh, Maharashtra, pune, Manipur, Meghalaya, Mizoram, Nagaland, Orissa, Punjab, Rajasthan, Sikkim, Uttar Pradesh, Uttaranchal, West Bengal.
Ashtavinayak Alloys exports Ferrinox 255 / Uranus 2507 (UNS S32520 / S32550 / Wr.No. 1.4507) Pipes & Tubes to Countries like UAE, Oman, Quatar, Kuwait, Egypt, South Africa, Uganda, Tanzania, Sudan, Saudi Arabia, Cameroon, Gabon, Seychelles, Ethiopia, Tunisia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Turkey, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, Libya, Equatorial Guinea, The Republic Of Congo, europe, Africa, Asia, North America, South America, Middle East, Far East.etc.
For further enquiries related to Ferrinox 255 / Uranus 2507 (UNS S32520 / S32550 / Wr.No. 1.4507) Pipes & Tubes kindly get back to us on :- salesashtavinayakalloys@gmail.com in or whatsapp on +91 9969678686