Super Duplex Stainless Steel Pipes And Tubes A790 S32760 (F44, 1.4501,ZERON® 100)
Super Duplex Stainless Steel Pipes And Tubes A790 S32760 (F44, 1.4501,ZERON® 100)
YUHONG GROUP deal with Austenitic Stainless Steel, Duplex and Super Duplex Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ), Copper Alloy Steel seamless and welded pipe and tube already more than 33 years, every year sell more than 15000 tons. Our client already cover more than 75 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2015, ISO 14001-2015,ISO 18001-2015.
S32760 super duplex stainless steel is developed to be used in aggressive environments. Properties of S32760 include toughness, high strength, corrosion resistance in a large number of organic and inorganic acids. Finally it features high resistance to strong alkalis and resists corrosion in a number of non-oxidizing acids.
While involving extended exposure to temperatures more than 572F use of S32760 is not recommended. The chemical composition of UNS S32750 and UNS S32760 are similar; however, the latter contains slightly more copper and tungsten. The copper content (min. 0.5, max 1.0) permits excellent resistance to corrosion in many non-oxidizing and mineral acids like hydrochloric and sulfuric acid.
Super Duplex Alloy UNS SS32760 (F55 / 1.4501) has excellent corrosion resistance to a wide variety of media, with outstanding resistance to pitting and crevice corrosion in seawater and other chloride containing environments, with Critical Pitting Temperature exceeding 50°C.
Providing higher strength than both austenitic and 22% Cr Duples Stainless Steels UNS S32760 (F55) is suited to a variety of applications in industries such as Chemical Processing, Oil & Gas, and Marine environments. UNS S32760 (F55 / 1.4501) is listed in NACE MR 01 75 for sour service and having gained ASME Approval for Pressure Vessel applications.
Chemical Composition of ASTM A790 UNS S32760 Super Duplex Stainless Steel Seamless Pipes
| N | Mn | Si | P | S | Fe | r | Ni | Mo | C | W | Cu |
| 0.2-0.3 | 1.00 Max | 1.0 Max | 0.03 Max | 0.01 Max | Balance | 24.0-26.0 | 6.0-8.0 | 3.0-4.0 | 0.030 Max | 0.5-1.0 | 0.50-1.0 |
| Grade | Mechanicals | ||||
| Specification | UTS N/mm² (min) |
0.20% Proof (min) |
Elong % (min) |
Hardness HB (max) |
PREN |
| UNS S32760 | 750 | 550 | 25 | 270 | 40 |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 550 [79.8] |
| Ultimate Tensile Strength (N/mm2) [ksi] minimum | 750 [108.8]] |
| Elongation (%) minimum | 25 |
| Hardness (HBN) | 270max |
| Reduction of Cross Section Area (%) minimum | 45 |
| Charpy V-notch Impact at ambient Temp (J) [ft.lb] | 80min [59min] |
| Charpy V-notch Impact at -46°C (J) [ft.lb] | 45av, 35min [33av, 25.8min] |
- Guaranteed corrosion performance (PREn ≥ 40)
- High resistance to pitting and crevice corrosion
- Excellent resistance to stress corrosion cracking in both chloride and sour environments
- High resistance to erosion corrosion and corrosion fatigue
- Excellent mechanical properties
- Possibility for weight reduction over austenitic, standard duplex and nickel base alloys
- Good weldability
Application of ASTM A790 UNS S32760 Super Duplex Stainless Steel Seamless Pipes- Chemical Process Industry: Due to its high corrosion resistance UNS S32760 is ideal for use in Nitric Acid Processes, Polypropylene Production, PVC Production, Dioxide, Caustic Evaporators, and Equipment.
- Handling Organic and Fatty Acids.
- Marine Industry and Shipbuilding: Propellers and Shafts, Rudders, Shaft Seals, Pumps, Bolts and Fasteners, Valves, Instrumentation, Oil and Chemical Tankers
- Oil and Gas Industry: Pumps, Valves, Pipe, Vessels, Wellhead Equipment, Subsea Equipment
- Pollution Control: Fans and pumps, Wet Scrubbers, Incinerators
- Pulp and Paper Industry: Black liquor heater tubes, Digester Blow Valves, Rotary Feed Valves, I.D.Fans, Brownstock Washers, Precipitators, Bleaching Components
- Food Industry: Sugar Cane Centrifuges, Corn and Vegetable processing plant
- Agrochemicals: Fertilizer Production (Wet phosphoric acid)
- Civil Engineering: Sewage Treatment
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