When extreme conditions are the norm, you need materials that don’t flinch. Super Duplex (UNS S32750 F53) Round Bars are built exactly for that. With double the strength of standard austenitic stainless steel and impressive resistance to corrosion, erosion, and stress cracking, these bars are the backbone of serious industrial infrastructure.
Whether it’s offshore drilling, pressure piping, or high-load structural components – F53 bars deliver where other grades give up. They’re not flashy – but they’re ridiculously dependable. And in heavy-duty industries, that’s the real flex.
Why Super Duplex F53 Round Bars Get the Job Done
Twice the Strength of Stainless Steel – Perfect for load-bearing and structural frameworks High Resistance to Chloride-Induced Stress Cracking – Ideal for coastal and marine zones Performs in Extreme Pressure & Temperature – Built for chemical plants, oil rigs, and high-heat zones Outstanding Weldability & Toughness – Easy to fabricate without compromising mechanical strength Low Thermal Expansion & High Fatigue Strength – Great for dynamic equipment like pumps and shafts Backed by Global Standards – Supplied with MTCs, tested for ASTM & ASME compliance
If you’re designing systems where failure is not an option, Super Duplex F53 should already be on your spec sheet.
Where You’ll See F53 Round Bars in Action
Super Duplex isn’t a luxury – it’s a necessity when you’re dealing with hostile environments. Here’s where it thrives:
Subsea pipelines, risers, and connectors
Desalination systems and marine exhausts
Heat exchangers and condensers
Pressure vessels in refineries
Pulp & paper digester systems
Shaft components, impellers, and heavy-duty fasteners
Offshore structural supports and platforms
It’s particularly useful in regions dealing with chloride stress corrosion, high pressure, or fast-flowing acidic fluids.
Tech Specs: What’s Inside Matters
Chemical Composition (%)
Element
Content (%)
Chromium
24.0 – 26.0
Nickel (Ni)
6.0 – 8.0
Molybdenum
3.0 – 5.0
Nitrogen
0.24 – 0.35
Carbon
0.030 max
Manganese
1.2 max
Silicon
0.8 max
Iron (Fe)
Balance
Mechanical Properties
Property
Value
Tensile Strength
795 MPa min
Yield Strength (0.2%)
550 MPa min
Elongation
25% min
Hardness (Brinell)
≤ 290 HB
Density
7.8 g/cm³
Melting Point
1350–1400°C
With high PREN (Pitting Resistance Equivalent Number) values, F53 is engineered to outlast even in seawater or acidic environments. It’s performance-grade, through and through.
Finish: Bright, Peeled, Centerless Ground, or Hot Rolled
Condition: Solution Annealed & Pickled
We also offer custom machining, third-party inspection, and export-ready packaging to suit global project needs
Why Clients Trust Us
We’re not just another Super Duplex (UNS S32750 F53) Round Bars supplier in India. We deliver real value—quality materials, fast dispatch, technical transparency, and excellent post-sale support.
Whether you’re an EPC contractor sourcing for a mega project or a small fabricator managing a precision order—we treat every inquiry with the same level of urgency and detail. Because reliability shouldn’t just be in the material. It should be in the supplier too.