UNS NO32760 (F55) Sheets,Plates and Coils
UNS S32760 (F55) Sheets, Plates & Coils are supplied by Rose Metal Industries, a leading manufacturer, stockist, and exporter of high-quality super duplex stainless steel products. F55 is a premium-grade super duplex stainless steel known for its exceptional corrosion resistance, high strength, and durability. Rose Metal Industries provides these materials in sheets, plates, and coils to industrial clients across India and globally, ensuring top-notch quality and compliance with international standards. These products are widely used in regions like Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and the Andaman & Nicobar Islands, catering to industries operating in marine, chemical, offshore, and high-chloride environments..
The chemical composition of UNS S32760 (F55) includes 24–26% Chromium (Cr), 6–8% Nickel (Ni), 3–4% Molybdenum (Mo), 0.2–0.3% Nitrogen (N), and low Carbon (≤0.03%), with controlled amounts of Silicon, Manganese, Phosphorus, Sulfur, and sometimes Copper/Tungsten. This composition ensures superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC), particularly in chloride-rich and seawater applications. The dual-phase microstructure of austenite and ferrite enhances both corrosion resistance and mechanical strength, making F55 an ideal choice for aggressive industrial applications..
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Mechanically, UNS S32760 sheets, plates, and coils offer a minimum yield strength of approximately 550 MPa, tensile strength around 750–800 MPa, elongation ≥25%, and hardness up to BHN 270–310 depending on thickness and heat treatment. This high strength enables structural weight savings without compromising durability, while maintaining excellent fatigue resistance, toughness, and weldability. These mechanical properties make F55 suitable for demanding industrial environments, offshore platforms, chemical processing units, and marine applications..
Rose Metal Industries manufactures and supplies F55 in a wide range of forms: hot-rolled plates, cold-rolled sheets, coils, and cut-to-length sheets/plates, with options for pickled, polished, or custom surface finishes. The products meet international standards such as ASTM A182, ASTM A240, ASTM A276, ASME, and EN 1.4501, and are available with full Mill Test Certificates (MTC), PMI/chemical analysis, and third-party inspection on request. This ensures traceability and quality assurance for industrial and export applications.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | UNS S32760 (F55) / Super Duplex Stainless Steel |
| Standards | ASTM A182, ASTM A240, ASTM A276, ASME / EN 1.4501 |
| Forms | Sheets, Plates, Coils, Cut‑to‑Length Plates & Sheets |
| Surface Finish | Hot‑rolled, Cold‑rolled, Pickled, Polished, Custom Finish |
| Testing | Dimensional, Tensile, Hardness, PMI, MTC, Certification as per customer/ project requirement |
Chemical Composition (typical ranges)
| Element | F55 / S32760 (wt %) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Chromium (Cr) | 24–26 |
| Nickel (Ni) | 6–8 |
| Molybdenum (Mo) | 3–4 |
| Nitrogen (N) | 0.20–0.30 |
| Other (Cu + W, Si, Mn, P, S) | As per standard limits (Si ≤1.0, Mn ≤1.0, P ≤0.03, S ≤0.01, Cu/W per spec) |
Mechanical Properties (typical)
| Property | Value (typical / min.) | Notes |
|---|---|---|
| Yield Strength (0.2%) | ~ 550 MPa | Solution‑annealed condition |
| Tensile Strength (UTS) | ~ 750 – 800 MPa (depends on sheet/plate thickness) | High strength duplex structure |
| Elongation | ≥ 25% | Good ductility and toughness |
| Hardness | BHN up to ~ 270‑310 | Depending on thickness & heat‑treatment |
Typical Applications
- Offshore oil & gas platform structures, subsea components, risers, jackets
- Seawater desalination and seawater treatment plant equipment, piping, heat exchangers
- Chemical and petrochemical processing units — vessels, reactors, storage tanks, scrubbers
- Marine engineering & shipbuilding — decks, hull components, sea‑water exposed structures
- Power plant components — cooling water systems, condensers, structural supports
- Industrial machinery, heavy‑duty structural frameworks, corrosive chemical exposure zones
In terms of applications, UNS S32760 (F55) sheets, plates, and coils are widely used in offshore oil & gas platforms, seawater desalination and treatment plants, chemical and petrochemical processing, marine engineering and shipbuilding, power generation equipment, heat exchangers, pressure vessels, and industrial machinery exposed to corrosive environments. Their high corrosion resistance and mechanical strength make them ideal for both structural and process-related applications, where reliability and longevity are critical..
Overall, UNS S32760 (F55) sheets, plates, and coils from Rose Metal Industries are trusted for global projects and critical industries requiring super duplex stainless steel with exceptional performance. Their availability in India (Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, Andaman & Nicobar Islands) and international markets ensures that clients receive the material in the required specifications, dimensions, and surface finishes for any industrial, marine, or offshore application..
Frequently Asked Questions (FAQ)
Q1: Why choose UNS S32760 (F55) sheets/plates/coils over regular stainless steel?
A: Because F55 is a super duplex stainless steel with superior corrosion resistance (pitting, crevice, SCC) and significantly higher strength than standard austenitic or duplex stainless steels, making it ideal for harsh marine, offshore, or chemical environments.
Q2: Do you provide Mill Test Certificates (MTC) and inspection reports?
A: Yes — Rose Metal Industries supplies full MTCs, PMI/chemical analysis reports, and can facilitate third‑party inspection on request for traceability and quality assurance.
Q3: Are custom sizes, thicknesses, and finishes available?
A: Yes — we offer coils, cut‑to‑length sheets/plates with custom thickness, width, finish (hot‑rolled, pickled, polished) and tolerances as per project requirements.
Q4: For which industries is F55 most suitable?
A: Ideal for offshore oil & gas, marine structures, desalination, chemical & petrochemical plants, power generation, seawater cooling, and any application exposed to chloride or corrosive media.
Q5: Which regions in India do you serve?
A: We supply across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and Andaman & Nicobar Islands, and also fulfill export orders globally.