General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
UNS S32550 : SUPER DUPLEX : A276 (VO1.03), A479 (VO1.03)
The characteristic features of high strength and corrosion resistance exhibited by the dual microstructure (austenite, ferrite) associated with duplex stainless steels are found in UNS S32550. It is similar in composition to the more widely used super duplex grade UNS S32760. UNS S32550 has a slightly higher copper level, lower nickel and no deliberate tungsten additions, and is normally supplied to achieve the UNS S32760 PREN requirement of 40.Super duplex 255 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. 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.
Common Trade Names
- Super duplex S32550
Common Applications of S32550
- 1.4507 and UNS S32550 materials are used in the paper,
chemical, nitrogen, and aviation industries as well as in power engineering
for screws, shafts, sleeves, fittings, installations and pipelines, pump parts,
tanks for chemicals, heat exchangers, radiator parts and aircraft constructions .
Standard Inventory Specificatio
- ASTM
- ASTM
- JIS
- EN
- UNS S32550 – A182 grade F61 – Alloy S32550
- UNS S32520 – A182 grade F59
- SUS329J4L – SUS 329J4L
- 1.4507 – X2CrNiMoCuN25-6-3
Chemical Composition
Chemical Properties of S32550 Super duplex stainless
Element
Percent by Weight
Cr
Chromium
24%–27%
Ni
Nickel
6.5%
Si
Silicon
1.0% max
P
Phosphorous
0.04% max
S
Sulfur
0.03% max
C
Carbon
0.04% max
N
Nitrogen
0.25%
Cu
Cuprum
2.5%
Mo
Molybdenum
3.9%
Fe
Iron
Balance
Physical Properties
Physical properties of S32550 Super duplex steel
| Physical property | Value |
| Density | 7.81g/cm3 |
| Melting Range | 1385-1443°C |
| Specific Heat Capacity at 212°F | 7.81 |
| Thermal Conductivity at 212°F | |
| Poisson’s Ratio | 0.3 |
| Elastic Modulus at 72°F | 200Gpa |
Mechanical Properties
Mechanical properties of S32550 Super duplex
| Mechanical property | Value |
| 0.2% Yield Strength, ksi | 80 min |
| Tensile Strength, ksi | 110 min |
| Elongation, % | 15 min |
| Hardness [HRC] |
S32550 Seamless Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: OD: Φ4-Φ1219mm; WT:…
Introduction: Wisine its production capacity of stainless steel seamless pipe, roughly 2100 tons per month. As per your requirement…
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S32550 Sanitary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: OD: Φ8-Φ850mm; WT:…
Introduction: Wisine produces sanitary tubes that are widely applicable to food & beverage industry, pharmaceutical industry…
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S32550 Thick-walled Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: OD: Φ10-Φ1219mm; WT:…
Introduction: Thick-walled stainless steel pipe, also named stainless steel hollow bar, are usually used for mechanical applications or…
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S32550 Welded Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: OD: Φ6-Φ2800mm; WT:…
Introduction: Wisine produces welded stainless steel pipe in different shapes: round, square and rectangle. In comparison with seamless pipe…
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S32550 Square Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Side Length: 4×4-300×300mm…
Introduction: As per your requirement, stainless steel square pipe can be made into welded stainless steel square pipe or…
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S32550 Rectangle Pipe
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Side Length: 4×6-200×400…
Introduction: Stainless steel rectangle pipe is hollow stainless steel long product and can be classified into seamless and welded…
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S32550 Capillary Tube
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: OD: Φ0.4-Φ16.0mm; WT:…
Introduction: Wisine produces stainless steel capillary with different finishes for your option. Quite common in our international markets…
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S32550 Coil Tube
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: OD: Φ0.4-Φ16mm; WT:…
Introduction: Stainless steel coil tubes refer to those tubes with diameter ranging from 0.5mm to 20mm and wall thickness from…
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S32550 Elbow
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Outer Diameter: DN15 – DN600…
Wall Thickness: Sch5S- Sch160…
Classification: 45° elbow, 90° elbow, 180° elbow, long radius elbow, short radius elbow…
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S32550 Flange
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Outer Diameter: DN6 – DN750…
Wall Thickness: Sch5S-Sch160S…
Classification: SW (Socket Welding) flange, WN (Welding Neck) flange, SO (Slip-On) flange…
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S32550 Tee
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Outer Diameter: DN15 – DN750…
Wall Thickness: Sch5S-Sch160…
Classification: Straight tee, reducing tee…
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S32550 Cross
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S-Sch160…
Classification: Straight cross, reducing cross…
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S32550 Reducer
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Outer Diameter: DN15 – DN500…
Wall Thickness: Sch5S-Sch160…
Classification: Concentric reducer, eccentric reducer…
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S32550 Pipe Cap
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Outer Diameter: DN15 – DN1200…
Wall Thickness: Sch5S- Sch160…
Classification: Hemispherical cap, elliptical/oval cap, dish cap, spherical cap…
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S32550 Round Bar
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Diameter: 2mm – 600mm…
Introduction: Stainless steel round bars are categorized as both long products and bar materials. SS round bar is long stainless steel product…
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S32550 Flat Bar
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Thickness: 0.5mm – 200mm…
Introduction: Stainless steel flat bars are of rectangle shape with root face (or round edges) and they can be semi-finished or finished…
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S32550 Angle Bar
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Equal Angle Bar Dimensions…
Introduction: Stainless steel angle bars are L-shape bars with two side widths perpendicular to each other. The two widths can be equal…
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S32550 Square Bar
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Dimensions: 2mmx2mm – …
Introduction: Stainless steel square bars are long stainless steel products with its cross section as square. At Wisine, we produce SS square…
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S32550 Hexagon Bar
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Dimension: 3mm – 180mm…
Introduction: Stainless steel hex bar is solid stainless steel long product with its cross section as hexagonal. Wisine produce stainless…
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S32550 Channel Bar
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Hot Rolled: 40mmx80mmx…
Introduction: Stainless steel channel bar is stainless steel long product with its section as U shape. At Wisine, apart from stainless steel…
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S32550 Sheet
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Thickness: ≤ 5mm…
Introduction: In Wisine, we refer to thickness below 5mm as stainless steel sheets and thickness above 5mm as SS plates…
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S32550 Plate
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Thickness: ≥ 5mm…
Introduction: In Wisine, we regard thickness above (includes) 5mm as stainless steel plates. Our stainless steel plates are hot rolled…
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S32550 Coil
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Width: ≥ 610mm…
Introduction: Our stainless steel coils are primary quality coils from the origin of Baosteel, ZPSS, TISCO, JISCO, ATI, SMC, HAYNES…
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S32550 Strip
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Width: ≤ 610mm…
Introduction: Stainless steel strip has its width less than 610mm, with its thickness ranging from 0.02mm to 6mm. For width over 610mm…
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S32550 Wire
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Diameter: 0.02mm-25mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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S32550 Wire Rod
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Diameter: Hot rolled wire rod:…
Weight: ≤500Kg per roll
Tolerance: H9, H11
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S32550 Wire Rope
Standard: ASTM, JIS, DIN, EU…
Grade: S32550…
Size: Φ0.15mm-Φ50mm…
Introduction: Wisine produces high quality wire and stainless steel wire rope. Our annual production capacity is roughly 8000 tons…
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