Zeron® 100 (UNS S32760) is a highly alloyed super duplex stainless steel originally developed for North Sea seawater pump applications. With PRE ≥ 40, outstanding chloride stress corrosion cracking resistance, and high strength, it is widely used in oil & gas, chemical processing, desalination, and marine industries.
1. Product Specifications & Physical DataAvailable Forms: Castings, plate, sheet, bar, pipe, tube, fittings, forgings . Specifications: ASTM A182 F55, ASTM A790, UNS S32760, EN 1.4501, NACE MR0175 .
| Chemical Composition (Weight %) | Value |
|---|
| Chromium (Cr) | 24.0 - 26.0 | | Nickel (Ni) | 6.0 - 8.0 | | Molybdenum (Mo) | 3.0 - 4.0 | | Tungsten (W) | 0.5 - 1.0 | | Copper (Cu) | 0.5 - 1.0 | | Nitrogen (N) | 0.20 - 0.30 |
| Physical & Mechanical Properties | Value |
|---|
| Density | 7.8 g/cm³ | | Modulus of Elasticity | 200 GPa | | Tensile Strength (min.) | 860 MPa (125 ksi) | | Yield Strength (min.) | 550 MPa (80 ksi) | | Elongation (min.) | 25% | | PRE | ≥ 40 | | Impact Toughness (-46°C) | 50 J |
2. Operating Conditions & Selection CriteriaCorrosion Resistance: PRE ≥ 40 provides superior pitting and crevice corrosion resistance in seawater Sour Service: Excellent sulfide stress cracking resistance; NACE MR0175 approved Acid Resistance: Copper content ensures outstanding performance in non-oxidizing acids (sulfuric acid) Fatigue: Superior corrosion fatigue and erosion corrosion resistance Impact Strength: No ductile-brittle transition; excellent low-temperature toughness Service Temperature: -50°C to 300°C (-58°F to 572°F)
3. Fabrication & Material ComparisonHeat Treatment: Solution anneal 1100-1140°C, water quench Welding: Good weldability with matching filler; preheating not required Forming: Higher strength requires more powerful equipment
| Comparison | Zeron 100 | 2507 | 2205 | 316L |
|---|
| PRE | ≥ 40 | ≥ 40 | ≥ 35 | 25 | | Yield Strength | 550 MPa | 550 MPa | 450 MPa | 170 MPa | | SSC Resistance | Excellent | Excellent | Good | Poor | | W & Cu Additions | Yes | No | No | No |
4. ApplicationsOil & gas: subsea pipework, risers, manifolds, valves, heat exchangers Marine:seawater systems, pump components Pollution control: FGD scrubbers, ducting Chemical processing: acid handling equipment Desalination: high-pressure RO systems Power generation: condenser tubing
Contact ZYTC Alloy for certified UNS S32760 Zeron® 100 super duplex stainless steel with complete traceability, and competitive pricing. Available in plate, sheet, bar, pipe, tube, fittings, and custom forms for demanding applications across oil & gas, marine, and chemical processing industries. Email: daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
